Microstrip Patch with a Vertical Loading for Improved Radiation Properties

This study introduces a novel design approach to reduce the cross-polarized (XP) radiation from a microstrip patch over the orthogonal plane. A vertical loading is positioned at the center of the patch to attenuate the fields originating due to TM 02 mode. In contrast to earlier reported works, this...

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Bibliographic Details
Published in2023 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON) pp. 1 - 4
Main Authors Basak, Soumojeet, Rafidul, Sk, Guha, Debatosh
Format Conference Proceeding
LanguageEnglish
Published IEEE 11.12.2023
Subjects
C-band
cross-polarized (XP) radiation
Impedance
Loading
Microstrip
Microstrip antennas
microstrip patch
Microwave antennas
Microwave theory and techniques
vertical loading
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Summary:This study introduces a novel design approach to reduce the cross-polarized (XP) radiation from a microstrip patch over the orthogonal plane. A vertical loading is positioned at the center of the patch to attenuate the fields originating due to TM 02 mode. In contrast to earlier reported works, this loading is printed on a PTFE substrate to minimize the loading height. This breaks the fundamental notion of \lambda/4 loading height for XP suppression. A C-band rectangular patch is used for the study. The proposed method reduces the loading height by 77 %. It also suppresses the XP radiation over the orthogonal plane by 15 dB, maintaining the input impedance and co-polar radiation patterns undisturbed.
DOI:10.1109/MAPCON58678.2023.10464087