A low‐profile dual‐polarized antenna with crosspolarization enhancement

A dual‐polarized antenna that simultaneously achieves low profile, low crosspolarization, and high isolation is presented in this article. Our research indicates that the irregular currents on the artificial magnetic conductor (AMC) surface in our design can lead to an extra coupling. Because short...

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Bibliographic Details
Published inMicrowave and optical technology letters Vol. 62; no. 5; pp. 1997 - 2003
Main Authors Shi, Junhao, Zhai, Huiqing, Li, Hongkun
Format Journal Article
LanguageEnglish
Published Hoboken, USA John Wiley & Sons, Inc 01.05.2020
Wiley Subscription Services, Inc
Subjects
Antennas
artificial magnetic conductor (AMC)
Communications systems
Conductors
dual‐polarized antenna
high isolation
low crosspolarization
low profile
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Summary:A dual‐polarized antenna that simultaneously achieves low profile, low crosspolarization, and high isolation is presented in this article. Our research indicates that the irregular currents on the artificial magnetic conductor (AMC) surface in our design can lead to an extra coupling. Because short pins can regularize the surface currents on the AMC surface and work as a balun, our antenna can achieve low crosspolarization and high port isolation. The proposed antenna achieves a profile height of 0.08 λ0 (λ0 represents the wavelength in free space at 3.4 GHz) and 23.5% (3.0‐3.8 GHz) relative bandwidth. The port isolation of the presented antenna is higher than 37 dB and the normalized crosspolarization is lower than −35 dB. The proposed antenna is suitable for the fifth generation communication systems.
Bibliography:Funding information
Shenzhen Science and Technology Plan, Grant/Award Number: JCYJ20180307123406401
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.32244