Patch antenna with low cross‐polarization using loading technique

In this article, a low cross‐polarized patch antenna is proposed with simple loading techniques. A metal block is set next to the patch and a coupling fringing field generated by the block compensates for the fringing field distribution asymmetry of the patch, resulting in a lower cross‐polarization...

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Bibliographic Details
Published inMicrowave and optical technology letters Vol. 65; no. 9; pp. 2605 - 2611
Main Authors Zhang, Jing‐Yi, Zhang, Jin‐Dong, Wu, Wen, Fang, Da‐Gang
Format Journal Article
LanguageEnglish
Published New York Wiley Subscription Services, Inc 01.09.2023
Subjects
bandwidth
cross‐polarization
loading technique
patch
Patch antennas
Polarization
Skewed distributions
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Summary:In this article, a low cross‐polarized patch antenna is proposed with simple loading techniques. A metal block is set next to the patch and a coupling fringing field generated by the block compensates for the fringing field distribution asymmetry of the patch, resulting in a lower cross‐polarization. In addition, a shorting pin is loaded to further improve polarization purity. To demonstrate the effectiveness of the proposed scheme, prototypes of the proposed antenna with specific parameters were fabricated and tested. The measured cross‐polarized level can be reduced to below −30 dB, which is greatly lower than that of the traditional patch.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.33752