Vol. 116

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2021-10-09

Slots and Complementary Split Ring Resonators Loaded Miniaturized Microstrip Antenna (S-CSRR-MHMSA) with Reduced Cross Polarization

By Uday Anandrao Patil and Anandrao Bajirao Kakade
Progress In Electromagnetics Research C, Vol. 116, 25-35, 2021
doi:10.2528/PIERC21070302

Abstract

Cross polarization (X-pol) effect is the undesired radiation of an antenna which wastes bandwidth (BW) and power of the communication system. Especially in the miniaturized microstrip antenna (MSA) the X-pol level is more. The observed X-pol level of the classical MSA at the direction of maximum radiation (φ =0˚) is -49.72 dB, whereas X-pol level of miniaturized H shaped MSA (MHMSA) is -39.96 dB. This paper presents miniaturized complementary split ring resonators loaded H shaped microstrip antenna (CSRR-MHMSA) and slots and CSRRs loaded MHMSA (S-CSRR-MHMSA) with reduced X-pol level. An array of CSRRs and slots are placed at the ground of the proposed antenna. Due to slots, the antenna is miniaturized and the polarizability of the electric field along the desired direction is increased by CSRRs. The CP-XP (Co-pol X-pol) isolation of CSRR-MHMSA and S-CSRR-MHMSA at φ =0˚ are measured. The measured E plane CP-XP isolation for CSRR-MHMSA and S-CSRR-MHMSA is 29.00 dB and 26.73 dB respectively. The measured CP-XP H plane isolation for CSRR-MHMSA and S-CSRR-MHMSA is 27.00 dB and 24.5 dB, respectively. While bandwidth (BW), gain G and radiation efficiency η are improved.

Citation


Uday Anandrao Patil and Anandrao Bajirao Kakade, "Slots and Complementary Split Ring Resonators Loaded Miniaturized Microstrip Antenna (S-CSRR-MHMSA) with Reduced Cross Polarization," Progress In Electromagnetics Research C, Vol. 116, 25-35, 2021.
doi:10.2528/PIERC21070302
http://jpier.org/PIERC/pier.php?paper=21070302

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