Home

Research

Research Student Advising

Teaching Interests and Employment History

Professional Activities

Education and Awards

Curriculum Vitae (CV)

Public Interviews and Workshops

Open Research Positions

 

Antenna Projects/Research Grants

Antenna Projects

The main research interests of my research group are in the Applied Electromagnetics area, which includes Antenna Theory & Design, RF MEMS Microwave Devices, and Novel Electromagnetics Materials (Electromagnetic Bandgap (EBG) Structures and Metamaterials). Our antenna designs find applications in Wireless Communications, Satellite Communications, Radar Applications, Biomedical Imaging, RFIDs, and so more. My research group includes undergraduate and graduate students (MS and Ph D). Specific research topics are given below:


Sponsored Research Projects


Sample Antennas (click here)

Antenna and Microwave Laboratory (AML)

Developed antenna analysis, design, fabrication and measurement facility since joining in Fall, 2006. The lab currently includes an Anechoic Chamber with combined far-field and spherical near-field radiation pattern measurement system (800MHz to 32GHz), Orbit F/R spectrum analysis program, Vector Network Analyzers (low MHz to 4.5GHz, 40 MHz to 18 GHz, and 40MHz to 40GHz), LPKF CAD milling machine, LPKF via plating system, surface mount component soldering station, various broadband horn antennas and near-field probes, in addition to the full wave analysis simulation tools (such as Ansys HFSS, and FEKO, TICRA GRASP). Funding support came from the College of Engineering, NSF, and local industries.

This anechoic chamber is now being upgraded till 50 GHz. Additionally, another new addition is a mini-compact range from 50 GHz to 110 GHz. Both upgrade of current chamber and the mini-compact range installation is done by Orbit/FR. It includes a Keysight PNA till 110 GHz.

For more information about the AML facilities, please visit: The AML Lab Facility.

AML Lab Demonstration Video: https://drive.google.com/file/d/0B-a0uPPA4ZWjeno3YkxzME1LNVE/view?usp=sharing

Also, please visit my lab page for additional information: http://electrical.sdsu.edu/Laboratory/AntennaMicroLAb.html.

Research Publications and Co-Edited Books

Co-Edited Books


Book Chapters

Research Publications from SDSU

A) Journal Papers

Year 2016

J1. N. Labadie, S. K. Sharma, and G. Rebeiz, “Investigations on the use of Multiple Unique Radiating Modes for 2D Beam Steering”, IEEE Trans Antennas and Propagation, Vol. 64, No. 11, November 2016.
J2. Behrouz Babakhani, and S. K. Sharma, “A Frequency Agile Microstrip Patch Phased Array Antenna with Polarization Reconfiguration”, IEEE Trans Antennas and Propagation, Vol. 74, No. 10, October 2016.
J3. F. Meng, B. Babakhani, S. K. Sharma, “A Wideband Frequency Agile Fork-Shape Microstrip Patch Antenna with Nearly Invariant Radiation Patterns", International Journal of RF and Microwave Computer-Aided Engineering, Wiley, Vol. 26, No. 7, September 2016.
J4. F. Meng, and S. K. Sharma, “A single feed dual-band (2.4 GHz/5 GHz) miniaturized patch antenna for wireless local area network (WLAN) communications”, Journal of Electromagnetic Waves and Applicationsa, Taylor and Francis, October 2016, pp. 1-12.
J5. B. Babakhani, S. K. Sharma, and G. Mishra, “Wideband Circularly Polarized HIS Backed Fan-Shaped Antenna with Directional Patterns Covering L1-L5 GPS Bands”, Microwave and Optical Technology Letters (Accepted for publication).
J6. T. Hall, and S. K. Sharma, “S- and C-Band Modified PIFAs in MIMO Arrangement on Cylindrical Ground Plane" Microwave and Optical Technology Letters, Vol. 58, No. 9, September 2016.

Year 2015

J7. N. Labadie, S. K. Sharma, and G. Rebeiz, “A Novel Approach to Beam Steering using Arrays Composed of Multiple Unique Radiating Modes”, IEEE Trans Antennas and Propagation, USA, Vol. 63, No. 7, July 2015, pp. 2932-2945.
J8. F. Meng and S. K. Sharma, “A Dual-band High Gain Resonant Cavity Antenna with A Single Layer Superstrate”, IEEE Trans Antennas and Propagation, USA, Vol. 63, No. 5, May 2015.
J9. B. Babakhani and S. K. Sharma, “Wideband Frequency Tunable Concentric Circular Microstrip Patch Antenna With Simultaneous Polarization Reconfiguration”, IEEE Antennas and Propagation Magazine, USA, April 2015.
J10. S. K. Sharma, “A Discussion on Reconfigurable and Frequency Agile Planar Antennas”, Forum for Electromagnetic Research Methods and Application Technologies (e-Fermat) Journal, Vol. 9, February 2015 (Review Article).

Year 2014

J11. N. Labadie, S. K. Sharma, and G. Rebeiz, “A Circularly Polarized Multiple Radiating Modes Microstrip Antenna with Beam Peak and Null Steering Satellite Receive Applications”, IEEE Trans Antennas and Propagation, USA, Vol. 62, No. 7, July 2014, pp. 3490–3500.
J12. D. D. Stancil, S. K. Sharma, A. L. Fay, “The Remote Educational Antenna Laboratory: Making it Easier to Add Projects to Antenna Courses”, IEEE Antennas and Propagation Magazine, USA, Vol. 56, Issue: 1, 2014 , pp. 211-220.
J13. Y. Choukiker, S. K. Sharma, and S. K. Behera, “Hybrid Fractal Shape Planar Monopole Antenna Covering Multiband Wireless Communications with MIMO Implementation for Handheld Mobile Devices”, IEEE Trans Antennas and Propagation, USA, Vol. 62, No. 3, March 2014, pp. 1483-1488.

Year 2013

J14. S. Fernandez and S. K. Sharma, “Multi-Band Printed Meandered Loop Antennas with MIMO Implementations for Wireless Routers”, IEEE Antennas and Wireless Propagation Letters, USA (January 2013, pp. 96-99).
J15. S. K. Sharma, F. Fideles, and A. Kalikonda, “Planar Yagi-Uda Antenna with Reconfigurable Radiation Patterns", Microwave and Optical Technology Letters, Vol. 55, No. 12, December 2013, pp. 2946-2952.
J16. M. Garg, and S. K. Sharma, “Wide-Bandwidth Dielectric Resonator Antenna with Omni-directional Radiation Patterns for Beam Focusing Properties in a Circular Array”, International Journal of RF and Microwave Computer-Aided Engineering, John Wiley & Sons, USA, (Article first published online: 8 April 2013, DOI: 10.1002/mmce.20717).
J17. S. K. Sharma and M. Brar, “'Aperture-Coupled Wideband and Multiband Pentagon Shape Dielectric Resonator Antennas (DRAs) and Phased Array Performance”, Microwave and Optical Technology Letters (MOTL), Wiley Publications, USA, Vol. 55, Issue 2, February 2013, pp. 395–400. DOI: 10.1002/mop.27338.
J18. S. K. Sharma, M. Thyagarajan, A. Kulkarni and B. Shanmugam, “Investigations on a Frequency Reconfigurable Compact Spiral Loaded Planar Dipole Antenna”, Microwave and Optical Technology Letters (MOTL), Wiley Publications, USA, Vol. 55, Issue 2, February 2013, pp. 313–316, DOI: 10.1002/mop.27282.
J19. A. Kulkarni, and S. K. Sharma, “Frequency Reconfigurable Microstrip Loop Antenna Covering LTE Bands with MIMO Implementation and Wideband Microstrip Slot Antenna all for Portable Wireless DTV Media Player”, IEEE Transactions on Antennas & Propagation, USA, Vol. 61, No. 2, pp. 964–968, February 2013.

Year 2012

J20. J. Rayno, and S. K. Sharma, “Spirograph Planar Monopole Antenna (SPMA) Providing Uni-Directional Invariant Radiation Patterns by Employing a Broadband Ground Plane" IEEE Antennas and Wireless Propagation Letters, USA, Vol. 11, 2012, pp. 1588–1591.
J21. J. Rayno, and S. K. Sharma, "Wideband Frequency Reconfigurable Spirograph Planar Monopole Antenna (SPMA) Operating in the UHF Band" IEEE Antennas and Wireless Propagation Letters, USA, Vol. 11, 2012, pp. 1537-1540.
J22. J. Rayno and S. K. Sharma, “Compact Spirograph Planar Monopole Antenna (SPMA) Covering C-/X-Band with Invariant Radiation Pattern Characteristics”, IEEE Transactions on Antennas & Propagation, USA, Vol. 60, No. 7, December 2012, pp. 6002-6007 Digital Object Identifier: 10.1109/TAP.2012.2214117.
J23. N. Labadie, S. K. Sharma, and G. M. Rebeiz, “Investigations on a Novel Folded Ring Resonator Antenna with Multiband Characteristics”, IEEE Transactions on Antennas & Propagation, USA, Vol. 60, No. 7, July 2012, pp. 3083-3090.
J24. S. K. Sharma and M. Thyagarajan, “Performance Comparison of Symmetric and Offset Reflector Antennas Adaptively Illuminated by Novel Triple Mode Feedhorn”, International Journal of Antennas and Propagation, Vol. 2012 (2012), Article ID 870318, 10 pages, doi:10.1155/2012/870318.
J25. A. Kulkarni and S. K. Sharma, “A Multiband Antenna with MIMO Implementation for USB Dongle Size Wireless Devices”, Microwave and Optical Technology Letters (MOTL), Wiley Publications, USA, Vol. 54, Issue 8, August 2012, pp. 1990–1994.
J26. E. Mireles and S. K. Sharma, “A Novel Wideband Circularly Polarized Antenna Fed Using Vias Through Ground Plane Holes Connected to 3dB Branch Line Coupler for Worldwide UHF Band RFID Reader Applications”, Progress In Electromagnetics Research B (PIER B), Vol. 42, 23-44, 2012.
J27. B. Shanmugam, and S. K. Sharma, “Investigations on a Novel Without Balun Modified Archimedean Spiral Antenna with Circularly Polarized Radiation Patterns”, Applied Computational Electromagnetic Society (ACES) Journal, ACES JOURNAL, Vol. 27, N0. 8, August 2012, pp. 676-684.
J28. J. Patin and S. K. Sharma, “Single Feed Aperture-Coupled Wideband Dielectric Resonator Antenna (DRA) with Circular Polarization for Ku-Band Applications”, International Journal of Antennas and Propagation, Hindawi Publications, Vol. 2012, Article ID 378798, 8 pages, doi:10.1155/2012/378798.
J29. T. Tran, and S. K. Sharma, “Radiation Characteristics of a Multimode Concentric Circular Microstrip Patch Antenna by Controlling Amplitude and Phase of Modes”, IEEE Transactions on Antennas & Propagation, USA, Vol. 60, No. 3, March, 2012, pp. 1601-1605 .

Year 2011

J30. A. Moody and S. K. Sharma, “Investigations on Pyramidal Shaped Cavity Backed Planar Monopole Antenna Providing Directional Radiation Patterns Covering Ultra-Wide Bandwidth Frequency Range”, IEEE Antennas, Wireless and Propagation Letters (IEEE AWPL), Vol. 10, 2011 , pp. 1469-1472.
J31. S. K. Sharma, and B. Shanmugam, “Radiation Pattern Characteristics of a Wideband Novel Modified Archimedean Spiral Antenna Array Covering DCS/PCS/WLAN and LTE Wireless Communication Bands”, IEEE Antennas, Wireless and Propagation Letters, Vol. 10, 2011 , pp. 1453-1456.
J32. R. Bakshi and S. K. Sharma, “Investigations on a Wideband Microstrip Patch Antenna and its Frequency Agile Behavior by Employing Variable Height Ground Plane”, Applied Computational Electromagnetics Society (ACES) Journal, Vol. 26, No. 7, July 2011, pp. 539-550.
J33. J. Church and S. K. Sharma, “Improving the Radiation Performance of the Sierpinski Microstrip Fractal Patch Antenna through Novel Feed Methods”, Microwave and Optical Technology Letters (MOTL), Wiley Publications, USA, Vol. 53, Issue 9, pp. 2119–2123, September 2011.
J34. E. Mireles, M. Brar, A. Moody, S. Varanasi and S. K. Sharma, “A Multiband Planar Monopole Antenna for Mobile Communication Applications”, Microwave and Optical Technology Letters, Vol. 53, Issue 9, pp. 2177–2181, September 2011.

Year 2010

J35. C. Meagher and S. K. Sharma, “A Wideband Aperture-Coupled Microstrip Patch Antenna Employing Spaced Dielectric Cover for Enhanced Gain Performance”, IEEE Transactions on Antennas & Propagation, USA, Vol. 58, No. 9, September, 2010, pp. 2802-2810.
J36. A. Singh and S. K. Sharma, “Investigations on Wideband Cylindrical Dielectric Resonator Antennas with Directive Radiation Patterns and Low Cross Polarization”, IEEE Transactions on Antennas & Propagation, USA, Vol. 58, No. 5, May, 2010, pp. 1779-1783.
J37. G.-H. Cho, N. Labadie, and S. K. Sharma, “Design of an Embedded-Feed Type Microstrip Patch Antenna for UHF RFID Tag on Metallic Objects” IET Journal on Microwaves, Antennas & Propagation (IET MAP), UK, Vol. 4, No. 9, September 2010, pp. 1232-1239.
J38. N. Labadie, and S. K. Sharma, “A Novel Compact Volumetric Metamaterial Structure with Asymmetric Transmission and Polarization Conversion”, ScienceDirect Metamaterials Journal (Elsevier), UK, Vol. 4, Issue 1, May, 2010, pp. 44-57.
J39. N. Labadie, J. Patin, and S. K. Sharma, "Investigations on an H-Fractal Wideband Microstrip Bandpass Filter Multi-Passbands with a Tuned Notch Band”, Progress In Electromagnetics Research B, Vol. 22, pp. 285-303, 2010.
J40. J. Church, D. West, P. Dagar, and S. K. Sharma, “A Novel Wideband Microstrip Fractal Bandpass Filter with a Notch Band at 5-6GHz”, Microwave and Optical Technology Letters (MOTL), Wiley Publications, USA, Vol. 52, Issue 6, June 2010, pp. 1413–1416 Vol. 52, Issue 6, June 2010, pp. 1413–1416.

Year 2009

J41. S. K. Sharma, and L. Shafai, “Novel psi-shape microstrip patch antenna with wide impedance bandwidths”, IEEE Antennas and Wireless Propagation Letters 2009, Vol. 8, pp. 468–471.
J42. S. K. Rajgopal, and S. K. Sharma, “Investigations on Ultra-Wideband pentagon Shape Microstrip Slot Antenna for Wireless Communications”, IEEE Transactions on Antennas & Propagation, USA, Vol. 57, Issue 5, May 2009, pp. 1353-1359.

Year 2008

J43. L. Zhou, S. K. Sharma, and S. Kassegne, “Reconfigurable Microstrip Rectangular Loop Antennas Using RF MEMS Switches” Microwave and Optical Technology Letters (MOTL), Wiley Publications, USA, January 2008, Vol. 50, No. 1, pp. 252-256.
J44. C. Shafai, S. K. Sharma, J. Yip, Leili Shafai, and L. Shafai, “Microstrip Delay Transmission Line Phase Shifters by Actuation of Integrated Ground Plane Membranes” IET Journal on Microwaves, Antennas & Propagation (IET MAP), UK, March, 2008, Vol. 2, No. 2, pp. 163-170.

B) Conferences/Symposia Full Papers

Year 2017

C1. G. Mishra, A. Castro, S. K. Sharma, and Jia-Chi Chieh, “W-Band Feed Horn with Polarizer Structure for an Offset Reflector Antenna for CubeSat Applications”, IEEE AP-S/URSI 2017, San Diego, CA, USA, July 9-14, 2017 (Under Review).
C2. G. Mishra, S. K. Sharma, Jia-Chi Chieh, and J. Rowland, “W-Band Circular Polarized Series Fed Single Plane Beamsteering Array Antenna with 4-Bit Phase Shifter for CubeSat Applications”, IEEE AP-S/URSI 2017, San Diego, CA, USA, July 9-14, 2017 (Under Review).
C3. M. Komandla, G. Mishra and S. K. Sharma, “Dual Slant Polarized Cavity Backed Massive MIMO Panel Array Antenna with Digital Beamforming”, IEEE AP-S/URSI 2017, San Diego, CA, USA, July 9-14, 2017 (Under Review).
C4. A. Castro and S. K. Sharma, “A Triple Mode Waveguide Corrugated Horn Antenna Using 3D Printing Technology”, IEEE AP-S/URSI 2017, San Diego, CA, USA, July 9-14, 2017 (Under Review).
C5. K. R. Jha, G. Mishra and S. K. Sharma, “An Octahedron Shaped Planar Antenna for IoT Applications”, IEEE AP-S/URSI 2017, San Diego, CA, USA, July 9-14, 2017 (Under Review).
C6. R. R. George, A. Castro, S. K. Sharma, “Investigations of an Aperture Coupled Circular Polarized Via Walls Backed Microstrip Patch Linear Array Antenna for Beam Steering Performance”, IEEE AP-S/URSI 2017, San Diego, CA, USA, July 9-14, 2017 (Under Review).
C7. R. R. George, A. Castro, and S. K. Sharma, “Investigations of Wideband Circular Polarized High Gain Microstrip Patch Array Antenna at Ku-Band on Curved Surfaces" 2017 USNC-URSI National Radio Science Meeting (NRSM), Boulder, CO, USA, January 4-7, 2017.
C8. S. Krishna, and S. K. Sharma, “A Dual Polarization Massive MIMO Panel Array Antenna at Ka-Band with Beamforming Capability" 2017 USNC-URSI National Radio Science Meeting (NRSM), Boulder, CO, USA, January 4-7, 2017.
C9. R. R. George, A. T. Castro, and S. K. Sharma “Comparison of a Four Stage Sequentially Rotated Wideband Circularly Polarized High Gain Microstrip Patch Array Antennas at Ku-Band” 11th European Conference on Antennas and Propagation (EuCAP 2017), Paris, France, March 19-24, 2017.

Year 2016

C10. K. R. Jha, G. Mishra, and S. K. Sharma, “Analysis and design of a microwave absorber for wireless communication systems,” IEEE Int. Microwave and RF Conf. (IMaRC), New Delhi, India, December 5-9, 2016.
C11. S. K. Sharma and S. Krishna, “A Massive MIMO Panel Array at Ka-Band with Flexible Patterns and Beam Steering Performance”, ADHOCNET 2016, Ottawa, Canada, September 25-27, 2016.
C12. A. Wang and S. K. Sharma, “Two Elements Compact MIMO Antenna with Reconfigurable Lower Band and Consistent High Band for Tablet Applications”, 2016 URSI Asia-Pacific Radio Science Conference (URSI AP-RASC 2016), August 21-26, 2016, Seoul, Korea (Invited Paper).
C13. P. Tran and S. K. Sharma, “An Archimedean Spiral Antenna Loaded with Superstrate and Backed by 3D Printed Ground Structure for Directional Patterns”, IEEE APS/URSI 2016, Puerto Rico.
C14. B. Babakhani, S. K. Sharma, “A Beam Steering Linear Antenna Array with Novel Simultaneous Frequency Agility and Polarization Reconfigurablity”, IEEE APS/URSI 2016.
C15. A. Chaugule, G. Mishra, and S. K. Sharma, “Investigations on Frequency Agile Dual Polarization Dielectric Lens High Gain Antenna”, IEEE APS/URSI 2016.
C16. R. Damman, G. Mishra, B. Babakhani, and S. K. Sharma, “A Single Feed Planar Antenna With 4G Tunable Bands and Consistent Upper LTE Bands Between 1.51 GHz – 2.1 GHz”, IEEE APS/URSI 2016.
C17. M. Komandla, B. Babakhani, and S. K. Sharma, “Dipoles Supporting Multiple Unique Radiating Modes on Top of a High Impedance Surface”, IEEE APS/URSI 2016.
C18. B. Babakhani, S. K. Sharma, “Wideband Circularly Polarized Fan-Shaped Antenna On a HIS Structure”, IEEE APS/URSI 2016.
C19. B. Babakhan, and S. K. Sharma, “Dual Null Steering and Limited Beam Peak Steering Using a Triple Mode Microstrip Patch Antenna”, IEEE APS/URSI 2016.
C20. S. Latif, S. Yalamanchili, S. K. Sharma, “Tunable Frequency Selective Surface using L-shaped Slots”, IEEE APS/URSI 2016.
C21. M. Hossain, S. Latif, S. K. Sharma, and M. Alam, “Hybrid Perturbations in Stacked Ring-Patch Antennas for Wide Beamwidth Circular Polarization”, IEEE APS/URSI 2016.

Year 2015

C22. F. Meng, and S. K. Sharma, “A Single Feed Dual Frequency Dual Linear Polarized Patch Antenna with Tunable Frequency Ratio”, IEEE Applied Electromagnetic Conference (AEMC) 2015.
C23. K. Jha and S. K. Sharma, “Frequency Agile Monopole Antenna Design using Equivalent Circuit Model for MIMO Implementations in Mobile Handheld Devices”, IEEE Applied Electromagnetic Conference (AEMC) 2015.
C24. D. Lane, A. Castro, and S. K. Sharma, “Conductive Inkjet Printed Ultra-Wideband (UWB) Planar Monopole Antenna on Low Cost Flexible PET Substrate Material”, 2015 IEEE AP-S Symposium on Antennas and Propagation and URSI CNC/USNC Joint Meeting - Vancouver 2015, July 19-25, 2015.
C25. F. Meng and S. K. Sharma, “Single Feed Dual-Frequency Orthogonal Linear- Polarization Microstrip Patch Antenna with Large Frequency Ratio”, 2015 IEEE AP-S Symposium on Antennas and Propagation and URSI CNC/USNC Joint Meeting - Vancouver 2015, July 19-25, 2015.
C26. T. Hall, and S. K. Sharma, “S- and C-Band Omni-Directional Antennas in MIMO Arrangement on Bent Ground Plane for a Conducting Cylindrical Surface”, 2015 IEEE AP-S Symposium on Antennas and Propagation and URSI CNC/USNC Joint Meeting - Vancouver 2015, July 19-25, 2015.
C27. B. Babakhani, and S. K. Sharma, “A Beam Steering Linear Antenna Array with Novel Simultaneous Frequency Agility and Polarization Reconfigurablity”, 2015 IEEE AP-S Symposium on Antennas and Propagation and URSI CNC/USNC Joint Meeting - Vancouver 2015, July 19-25, 2015 (URSI Abstract).
C28. G. Mishra, S. K. Sharma, and G. Rebeiz, “Non-Foster Matching of Electrically Small Bow-Tie Antenna Covering 600MHz to 1100MHz”, 2015 IEEE AP-S Symposium on Antennas and Propagation and URSI CNC/USNC Joint Meeting - Vancouver 2015, July 19-25, 2015.

Year 2014

C29. K. Jha and S. K. Sharma, “Combination of Tunable Printed Monopole and Elliptical Monopole Antennas in MIMO Configurations for Cell Phone Application”, IEEE International Microwave and RF Conference, Bangalore, India, December 14-18, 2014.
C30. F. Meng and S. K. Sharma, “A SINGLE FEED DUAL-BAND (2.4GHZ/5.8GHZ) MINIATURIZED PATCH ANTENNA FOR WIRELESS LOCAL AREA NETWORK (WLAN) COMMUNICATIONS”, the 2014 URSI General Assembly and Scientific Symposium, Beijing, China, August 16-23, 2014.
C31. N. Labadie, S. K. Sharma and G. Rebeiz, “ 1D Beam Steering using Multiple Radiating Modes”, IEEE Inter. Symposium on Antennas Propagation 2014 (IEEE AP-S 2014), Memphis, USA.
C32. N. Labadie, S. K. Sharma and G. Rebeiz, “ Investigation of Hybrid Phased Arrays Composed of Multiple Mode Subarrays”, IEEE Inter. Symposium on Antennas Propagation 2014 (IEEE AP-S 2014), Memphis, USA.
C33. N. Labadie, J. Powell, S. K. Sharma and G. Rebeiz, “The Effect of Material Loss on the Axial Ratio Symmetry of Circular Microstrip Patch Antennas”, IEEE Inter. Symposium on Antennas Propagation 2014 (IEEE AP-S 2014), Memphis, USA.
C34. S. K. Sharma, et.al, “Wideband Vertically Polarized Omnidirectional Antennas for Direction Finding (DF) System”, IEEE Inter. Symposium on Antennas Propagation 2014 (IEEE AP-S 2014), Memphis, USA.
C35. F. Meng and S. K. Sharma, “A Dual-Band High Gain Resonant Cavity Antenna With Single Polarization”, IEEE Inter. Symposium on Antennas Propagation 2014 (IEEE AP-S 2014), Memphis, USA.
C36. K. R. Jha and S. K. Sharma, “Waveguide Integrated Microstrip Patch Antenna at THz Frequency”, IEEE Inter. Symposium on Antennas Propagation 2014 (IEEE AP-S 2014), Memphis, USA.
C37. K. R. Jha and S. K. Sharma, “Waveguide Integrated Microstrip Patch Array Feed Source for a Reflector Antenna at THz Frequency”, IEEE Inter. Symposium on Antennas Propagation 2014 (IEEE AP-S 2014), Memphis, USA.
C38. B. Babakhani and S. K. Sharma, “Frequency Tunable Microstrip Array Antenna with Polarization Reconfiguration”, IEEE Inter. Symposium on Antennas Propagation 2014 (IEEE AP-S 2014), Memphis, USA.
C39. B. Babakhani and S. K. Sharma, “Frequency Tunable Dualmode Microstrip Patch Antenna with Polarization Reconfiguration”, IEEE Inter. Symposium on Antennas Propagation 2014 (IEEE AP-S 2014), Memphis, USA.

Year 2013

C40. Y. Choukiker, S. K. Behera, and S. K. Sharma, “Two and Four-Element Wideband Sectoral Fractal Array Antennas with Omni-Directional Radiation Patterns”, IEEE APPLIED ELECTROMAGNETICS CONFERENCE 2013, December 18-20, 2013, Bhubaneswar, India.
C41. R. Kumari, S. K. Behera, and S. K. Sharma, “Aperture Coupled Wideband Dielectric Resonator Antenna Array with Polarization Reconfiguration”, IEEE APPLIED ELECTROMAGNETICS CONFERENCE 2013, December 18–20, 2013, Bhubaneswar, India.
C42. B. Babakhani and S. K. Sharma, “'Investigations on Frequency Agile Microstrip Patch Antenna Loaded with Varactor Diode”, IEEE Inter. Symposium on Antennas Propagation 2013 (IEEE AP-S 2013), Florida, USA.
C43. Y. Choukiker, S. Behera and S. K. Sharma, “'Hybrid Fractal Shape Planar Monopole Antenna with MIMO Implementation Covering Multiband Wireless Communications for Handheld Devices”, IEEE Inter. Symposium on Antennas Propagation 2013 (IEEE AP-S 2013), Florida, USA.
C44. J. Rayno, T. Hlaing, and S. K. Sharma, “'Novel Multiband Segmented Dual-Aperture-Coupled Annular Ring Microstrip Patch for Wireless Router MIMO Antenna System”, IEEE Inter. Symposium on Antennas Propagation 2013 (IEEE AP-S 2013), Florida, USA.
C45. S. K. Sharma, F. Fideles, and A. Kalikonda, “'Radiation Pattern Reconfigurable Planar Yagi-Uda Antenna”, IEEE Inter. Symposium on Antennas Propagation 2013 (IEEE AP-S 2013), Florida, USA.
C46. A. Kulkarni and S. K. Sharma, “'Frequency Reconfigurable Microstrip Loop MIMO Antenna and Wideband Microstrip Slot Antenna Both for Portable Wireless DTV Media Player”, IEEE Inter. Symposium on Antennas Propagation 2013 (IEEE AP-S 2013), Florida, USA.
C47. S. Fernandez and S. K. Sharma, “Multi-Band Printed Meandered Loop Antennas for Wireless Routers with MIMO Implementation”, ACES 2013, Monterey, CA, USA, March 24-28, 2013.

Year 2012

C48. Jennifer Rayno, S. K. Sharma, "Frequency Reconfigurable Spirograph Planar Monopole Antenna (SPMA)", International Symposium on Antennas and Propagation (ISAP 2012), Nagoya, Japan, October 29-November 2, 2012.
C49. Nathan Labadie, S. K. Sharma and G. M. Rebeiz, "A Circularly Polarized Multimode Patch Antenna with Full Hemispherical Null Steering for GPS Applications", International Symposium on Antennas and Propagation (ISAP 2012), Nagoya, Japan, October 29-November 2, 2012.
C50. N. Labadie, S. K. Sharma and G. Rebeiz, “A Compact Folded Ring Resonator Antenna with Multiband Characteristics”, IEEE Inter. Symposium on Antennas Propagation 2012 (IEEE AP-S 2012), Chicago, USA.
C51. N. Labadie, S. K. Sharma and G. Rebeiz, “Multimode Antenna Element with Hemispherical Beam Peak and Null Steering”, IEEE Inter. Symposium on Antennas Propagation 2012 (IEEE AP-S 2012), Chicago, USA.
C52. J. Rayno, and S. K. Sharma, “Beam Scanning Performance of a C- and X-Band Compact Spirograph PMA Array”, IEEE Inter. Symposium on Antennas Propagation 2012 (IEEE AP-S 2012), Chicago, USA.
C53. J. Rayno, and S. K. Sharma, “Effect of Substrate Thickness on the Performance of a Printed Planar Monopole Antenna (PMA)”, IEEE Inter. Symposium on Antennas Propagation 2012 (IEEE AP-S 2012), Chicago, USA.
C54. R. Damman, J. Rayno, and S. K. Sharma, “Beam Steering Performance of a Wideband Modified E-Shape Microstrip Patch Antenna Array”, IEEE Inter. Symposium on Antennas Propagation 2012 (IEEE AP-S 2012), Chicago, USA.
C55. M. Garg, and S. K. Sharma, “Beam Focussing Properties of Circular Array Antenna by Employing Dielectric Resonator Antennas”, IEEE Inter. Symposium on Antennas Propagation 2012 (IEEE AP-S 2012), Chicago, USA.
C56. S. K. Sharma, A. Kulkarni, et. al., “A Compact Spiral Loaded Planar Dipole Antenna with Frequency Reconfiguration”, IEEE Inter. Symposium on Antennas Propagation 2012 (IEEE AP-S 2012), Chicago, USA.
C57. M. Thayagrajan and S. K. Sharma, “Some Investigations on Reflector Antenna Performance by Employing a Triple Mode Feedhorn Using FEKO”, ACES 2012, Columbus, April 10-14, 2012.
C58. M. Garg and . K. Sharma, “Investigations on Wideband Cylindrical Dielectric Resonator Antenna with Monopole Like Omni-Directional Radiation Patterns”, ACES 2012, Columbus, April 10-14, 2012.

Year 2011

C59. B. Shanmugam and S. K. Sharma, Invited Paper: “Investigations on a Wideband Novel Modified Archimedean Spiral Antenna Array Covering DCS/PCS/WLAN and LTE Wireless Communication Bands”, AEMC 2011, Kolkata, India, December 18-22, 2011. (Invited Talk).
C60. B. Shanmugam, and S. K. Sharma, entitled “Investigations on a Novel Modified Archimedean Spiral Antenna” IEEE Inter. Symposium on Antennas Propagation 2011 (IEEE AP-S 2011), July 3-8, 2011.
C61. M. Brar and S. K. Sharma, “A Wideband Aperture-Coupled Pentagon Shape Dielectric Resonator Antenna (DRA) for Wireless Communication Applications”, IEEE Inter. Symposium on Antennas Propagation 2011 (IEEE AP-S 2011), July 3-8, 2011.
C62. K. Nahalingam, and S. K. Sharma, “An Investigation on Microwave Breast Cancer Detection by Ultra-Widebandwidth (UWB) Microstrip Slot Antennas”, IEEE Inter. Symposium on Antennas Propagation 2011 (IEEE AP-S 2011), July 3-8, 2011.
C63. A. Kulkarni and S. K. Sharma, “A Compact Multiband Antenna with MIMO Implementation for USB Size 4G LTE Wireless Devices” IEEE Inter. Symposium on Antennas Propagation 2011 (IEEE AP-S 2011), July 3-8, 2011.
C64. E. Mireles and S. K. Sharma, entitled “A Broadband Microstrip Patch Antenna Fed Through Vias Connected to a 3dB Quadrature Branch Line Coupler for Worldwide UHF RFID Reader Applications” IEEE Inter. Symposium on Antennas Propagation 2011 (IEEE AP-S 2011), July 3-8, 2011.
C65. J. Patin and S. K. Sharma, “Dual Band Single Feed Dielectric Resonator Antenna with Linear and Circular Polarization for Ku-Band”, IEEE Inter. Symposium on Antennas Propagation 2011 (IEEE AP-S 2011), July, 2011.

Year 2010

C66. A. Moody, and S. K. Sharma, “Investigations on Co-Planar Waveguide Fed Pentagon Shape Planar Monopole Ultra-Wide Bandwidth (UWB) Antenna on Foam Substrate Providing Invariant Radiation”, IEEE Inter. Symposium on Antennas Propagation 2010 (IEEE AP-S 2010), July 11-19, 2010.
C67. S. K. Sharma, and A. Tuteja, “Investigations on a Triple Mode Waveguide Horn Capable of Providing Scanned Radiation Patterns”, IEEE Inter. Symposium on Antennas Propagation 2010 (IEEE AP-S 2010), July 11-19, 2010.
C68. H.-G. Cho, N. Labadie, and S. K. Sharma, “Investigations on an Embedded-Feed Microstrip Patch for RFID Tag on Metallic Objects”, IEEE Inter. Symposium on Antennas Propagation 2010 (IEEE AP-S 2010), July 11-19, 2010.
C69. D. West, and S. K. Sharma, “Design of Frequency Reconfigurable Compact Multiband Quasi-Log Periodic Dipole Array (QLPDA) Antenna for Wireless Communications”, IEEE Inter. Symposium on Antennas Propagation 2010 (IEEE AP-S 2010), July 11-19, 2010.
C70. N. R. Labadie, and S. K. Sharma, “A Novel Volumetric Folded Ring Resonator Metamaterial Structure”, IEEE International Microwave Symposium 2010 (IMS-2010), Anaheim, CA, USA, May 2010.

Year 2009

C71. C. Meagher, and S. K. Sharma, “Investigations on an aperture coupled microstrip patch antenna with wide bandwidth for enhanced gain performance”, 13th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM 2009), February 15-18, 2009, Banff, Canada, pp. 1-4.
C72. T. Tran, and S. K. Sharma, “Single layer multimode microstrip patch antenna with circular polarization and multiple phase center properties”, IEEE Inter. Symposium on Antennas Propagation 2009 (IEEE AP-S 2009), June 1-5, 2009, Charleston, NC, USA, pp. 1-4.
C73. A. Singh, and S. K. Sharma, “Concentric cylindrical dielectric resonator antennas (DRA) with wide impedance bandwidth and directional radiation patterns”, IEEE Inter. Symposium on Antennas Propagation 2009 (IEEE AP-S 2009), June 1-5, 2009, Charleston, NC, USA, pp. 1-4.
C74. J. Church, and S. K. Sharma, “Investigations on wideband Seirpinski-fractal microstrip patch antenna with a matching network for enhanced gain performance”, IEEE Inter. Symposium on Antennas Propagation 2009 (IEEE AP-S 2009), June 1-5, 2009, Charleston, NC, USA, pp. 1-4.

Year 2008

C75. S. K. Rajgopal, and S. K. Sharma, “Performance of pentagon shape ultra-wide bandwidth (UWB) microstrip slot antennas for wireless communications”, IEEE Inter. Symposium on Antennas Propagation, San Diego, USA, July 5-12, 2008, pp. 1-4.
C76. S. K. Sharma, and P. R. S. Sodhi, “Investigations on hexagonal shape dielectric resonator antennas (DRAs) and arrays with wide impedance bandwidths”, IEEE Inter. Symposium on Antennas Propagation, San Diego, USA, July 5-12, 2008, pp. 1-4.
C77. C. Meagher, R. Olsen, R. C. Ferro, and S. K. Sharma, “Real-world Rotman Lens Prototyping and Analysis”, IEEE Inter. Symposium on Antennas Propagation, San Diego, USA, July 5-12, 2008, pp. 1-4.
C78. S. K. Sharma, and S. K. Rajgopal, “Investigations on ultra-wide bandwidth pentagon shape microstrip slot antenna backed by reflecting sheet for directional radiation”, URSI General Assembly 2008, Chicago, August 16, 2008, pp. 1-3.

Year 2007

C79. S. K. Sharma, and L. Shafai, “Investigations of a novel -shape microstrip patch antenna with wide impedance bandwidths”, IEEE Inter. Symposium on Antennas and Propagation, Hawaii, USA, June 15-22, 2007, pp. 881-884.
C80. L. Shafai, Z. Allahpour, and S. K. Sharma, “Virtual array Synthesis using Low Gain and High Gain Antennas”, North American Radio Science Meeting, URSI-CNC/USNC, URSI 2007, July 22-26, Ottawa, Canada (Abstract only).
C81. S. K. Sharma, S. K. Rajgopal, and M. S. Gupta, “Development of Antenna Starter Kits for Remote Educational Antenna Laboratory (REAL) to Enhance Undergraduate Electrical Engineering Education”, North American Radio Science Meeting, URSI-CNC/USNC, URSI 2007, July 22-26, Ottawa, Canada (Abstract only)
C82. A. Y. Z. Szeto and S. K. Sharma, “RFID Based Indoor Navigational Aid for Person Severe Visual Impairments”, 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC’07), August 23-26, 2007, Lyon, France, pp. 6360-6363.