ICTACT Journal on Microelectronics

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

The Higher Mode Elimination in Microstrip Patch Antenna using Defected Microstrip Surface for Suppression of Cross Polarized Radiations and Improved Isolation


Affiliations
1 Department of Physics, SBRR Mahajana First Grade College, India
2 Department of Electronics, Yuvaraja’s College, India
3 Department of Electronics, Postgraduate Centre, University of Mysore, India
     

   Subscribe/Renew Journal


This paper proposes unique design technique using defected microstrip surface (DMS) for the suppression of higher mode, reduced cross polarization (XP) and improved isolation. The proposed technique can be easily adapted to any conventional working rectangular microstrip patch antennas (RMPA) in the practical applications. The modification can be made by etching the rectangular slots called DMS of optimized dimensions in the rectangular microstrip patch. This will enhance the radiations by suppressing XP radiations and eliminates nearby undesired higher order mode, which is the source for the XP radiations. In this design the conventional RMPA is designed to resonate at 3.04 GHz with broad side radiations with co-polarized peak gain of 5.2dBi and XP of -15.5dB. The proposed RMPA resonates at the same frequency with a gain of 6dBi. The XP is significantly suppressed by 31dB and it is -46.5dB over the span of ±500, with co-pol to cross-pol isolation of 52.5dB is achieved for S-band applications. The performances of the designed antennas have been experimentally verified.

Keywords

Cross–Polarization, DMS, Isolation, RMPA.
Subscription Login to verify subscription
User
Notifications
Font Size

  • C.A. Balanis, “Antenna Theory: Analysis and Design”, Wiley, 2005.

  • Ramesh Garg and Bhartia P. Bahl, “Microstrip Antenna Design Handbook”, Artech House, 2001.

  • D. Guha, “Microstrip and Printed Antennas-New Trends, Techniques and Applications”, Wiley, 2011.

  • P. Li and L. Luk, “A Wideband Patch Antenna with Cross-Polarization Suppression”, IEEE Antennas Wireless Propagation Letter, Vol. 3, pp. 211-214, 2004.

  • Z.N. Chen and M.Y.W. Chia, “Broad-Band Suspended Probe-Fed Plate Antenna with Low Cross Polarization Level”, IEEE Transaction, Antennas Propagation, Vol. 51, No. 2, pp. 345-347, 2003.

  • A. Petosa, “Suppression of Unwanted Probe Radiation in Wide Band Probe-Fed Microstrip Patches”, Electronic Letters, Vol. 35, No. 5, pp. 1-16, 1999.

  • T. Chiou and K.L. Wong, “Broad-Band Dual-Polarized Single Microstrip Patch Antenna with High Isolation and Low Cross Polarization”, IEEE Transactions on Antennas and Propagation, Vol. 50, No. 3, pp. 399-401, 2002.

  • C.H. Lai, “Broadband Aperture-Coupled Microstrip Antennas with Low Cross Polarization and Back Radiation”, Progress in Electromagnetics Research Letters, Vol. 5, pp. 187-197, 2008.

  • K.S. Chin, “LTCC Differential Fed Patch Antenna with Rat Race Feeding Structures”, Progress in Electromagnetics Research C, Vol. 32, 95-108, 2012.

  • D. Guha, Chandrakanta Kumar and S. Pal, “Improved Cross-Polarization Characteristics of Circular Microstrip Antenna Employing Arc-Shaped Defected Ground Structure (DGS)”, IEEE Antennas and Wireless Propagation Letter, Vol. 8, pp. 1367-1369, 2009.

  • D. Guha and S. Biswas, “Concentric Ring-Shaped Defected Ground Structures for Microstrip Circuits and Antennas”, IEEE Antennas Wireless Propagation Letter, Vol. 5, pp. 402-405, 2006.

  • Chandrakanta Kumar and D. Guha, “Nature of Cross-Polarized Radiation from Probe Fed Circular Microstrip Antenna and their Suppression using Different Geometries of DGS”, IEEE Transactions on Antennas and Propagation, Vol. 13, No. 2, pp. 1-14, 2012.

  • C.S. Kim and J.S Lim, “Equivalent Circuit Modeling of Spiral Defected Ground Structure for Microstrip Line”, Proceedings of IEEE MTT-S International Microwave Symposium Digest, pp. 1-7, 2002.

  • G. Abhijyoti and D. Ghosh, “Rectangular Microstrip Antenna on Slot Type Defected Ground for Reduced Cross Polarized Radiation”, IEEE Antennas and Wireless Propagation Letters, Vol. 14, pp. 321-324, 2015.

  • Chandrakanta Kumar and D. Guha, “L-Shaped Defected Ground Structure: Small in Size but Significant in Suppressing Cross-Polarized Fields”, Proceedings of 5th IEEE Conference on Applied Electromagnetic, pp. 124-127, 2015.

  • Chandrakanta Kumar and D. Guha, “Defected Ground Structure (DGS)-Integrated Rectangular Microstrip Patch for Improved Polarization Purity with Wide Impedance Band Width”, IET Microwave Antennas Propagation, Vol. 8, No. 8, pp. 589-596, 2014.

  • Chandrakanta Kumar and D. Guha, “Reduction in Cross-Polarized Radiation of Microstrip Patches using Geometry Independent Resonant-Type Defected Ground Structure (DGS)”, IEEE Transactions on Antennas and Propagation, Vol. 63, No. 6, pp. 2767-2772, 2015.

  • Chandrakanta Kumar and D. Guha, “Asymmetric Geometry of Defected Ground Structure for Rectangular Microstrip: A New Approach to Reduce its Cross-Polarized Fields”, IEEE Transactions on Antennas and Propagation, Vol. 64, No. 6, pp. 2503-2506, 2016.

  • K.L. Wong, “Compact Dual-Frequency Microstrip Antenna with a Pair of Bent Slots”, Electronic Letter, Vol. 34, No. 3, pp. 225-226, 1998.

  • K.L. Wong, “Compact Dual-Frequency Circular Microstrip Antenna Offset Circular Slot”, Microwave Optic Technology Letter, Vol. 22, No. 4, pp. 254-264, 1999.

  • C. Subhradeep “Improved Cross Polarized Radiation and Wide Impedance Bandwidth from Rectangular Microstrip Antenna with Dumbbell Shaped Defected Patch Surface”, IEEE Antennas and Wireless Propagation Letters, Vol. 15, pp. 84-88, 2016.

  • M. Li, “Isolation Enhancement for MIMO Patch Antennas using Near-Field Resonators as Coupling-Mode Transducers”, IEEE Transactions on Antennas and Propagation, Vol. 67, No. 2, pp. 755-764, 2019.

  • M.G.N. Alsath, “Implementation of Slotted Meander-Line Resonators for Isolation Enhancement in Microstrip Patch Antenna Arrays”, IEEE Antennas and Wireless Propagation Letters, Vol. 12, pp. 15-18, 2013.

  • A. Tirdo-Mendez, “Improving Frequency Response of Microstrip Filters using Defected Ground and Defected Microstrip Structures”, Progress In Electromagnetics Research C, Vol. 13, pp. 77-90, 2010.

  • Abhijyoti Ghosh, “Wide Bandwidth Microstrip Antenna with Defected Patch Surface for Low Cross Polarization Applications”, International Journal of RF and Microwave Computer-Aided Engineering, Vol. 27, No. 8, pp. 1-14, 2017.

  • S. Poornima, “Flexible and Miniaturized Design of Microstrip Patch Antenna with Improved Cross-Polarized Radiation”, AEU International Journal of Electronics and Communication, Vol. 116, pp. 1-18, 2020.

  • HFSS, “High Frequency Structure Simulator, Version 13.0”, Available at: http://thedailygood.thegoodtrade.com/cgi-bin/content/view.php?data=hfss_13_tutorial&filetype=pdf&id=5265ce47eaa80a32ad50165546e3623f, Accessed at 2019.


Abstract Views: 273

PDF Views: 0




  • The Higher Mode Elimination in Microstrip Patch Antenna using Defected Microstrip Surface for Suppression of Cross Polarized Radiations and Improved Isolation

Abstract Views: 273  |  PDF Views: 0

Authors

S. Poornima
Department of Physics, SBRR Mahajana First Grade College, India
S. Chandramma
Department of Electronics, Yuvaraja’s College, India
Halappa Gajera
Department of Electronics, Postgraduate Centre, University of Mysore, India

Abstract


This paper proposes unique design technique using defected microstrip surface (DMS) for the suppression of higher mode, reduced cross polarization (XP) and improved isolation. The proposed technique can be easily adapted to any conventional working rectangular microstrip patch antennas (RMPA) in the practical applications. The modification can be made by etching the rectangular slots called DMS of optimized dimensions in the rectangular microstrip patch. This will enhance the radiations by suppressing XP radiations and eliminates nearby undesired higher order mode, which is the source for the XP radiations. In this design the conventional RMPA is designed to resonate at 3.04 GHz with broad side radiations with co-polarized peak gain of 5.2dBi and XP of -15.5dB. The proposed RMPA resonates at the same frequency with a gain of 6dBi. The XP is significantly suppressed by 31dB and it is -46.5dB over the span of ±500, with co-pol to cross-pol isolation of 52.5dB is achieved for S-band applications. The performances of the designed antennas have been experimentally verified.

Keywords


Cross–Polarization, DMS, Isolation, RMPA.

References