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Suppression of Cross-Polarized Fields of Microstrip Patch across All Skewed and Orthogonal Radiation Planes
D. Dutta, S. Rafidul, , C. Kumar
Published in Institute of Electrical and Electronics Engineers Inc.
Volume: 19
Issue: 1
Pages: 99 - 103
This letter explores a novel technique to minimize cross-polarized (XP) fields of a microstrip patch across all radiation planes. This inherent issue is more challenging to mitigate over the skewed, i.e., around the diagonal plane of radiation. A possible way to address this specific challenge by controlling the ground plane (GP) current has been discussed. Strategic but simple engineering has been demonstrated with a representative S-band rectangular patch. It shows the possibility of removing as much as 45% metal from the GP cladding, maintaining its impedance and the primary radiations unaltered. The targeted reduction in XP fields has been experimentally demonstrated by a maximum of 10 dB over the diagonal planes and 13 dB in H-plane. This approach should find potential applications in adaptive arrays and space antennas where three-dimensional (3-D) coverage with reduced XP values is an important requirement. © 2002-2011 IEEE.
About the journal
JournalData powered by TypesetIEEE Antennas and Wireless Propagation Letters
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.