Design of a Low-Profile and Low Scattering Wideband Planar Phased Antenna Array

This communication presents a low-profile and low scattering wideband planar phased antenna array with enhanced coupling (PAA-EC). The proposed chessboard-like PAA-EC consists of two different types of low-profile planar antenna elements that have similar radiation performance in the X-band. In addi...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2021-12, Vol.69 (12), p.8973-8978
Main Authors: Chen, Yikai, Zhou, Wenyang, Yang, Shiwen
Format: Article
Language:English
Subjects:
Antenna arrays
Antennas
Broadband
Impedance
Phased antenna arrays (PAAs)
Phased arrays
Radiation
Reflection
Scattering
scattering cross section (SCS)
Scattering cross sections
Superhigh frequencies
Wideband
wideband arrays
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Summary:This communication presents a low-profile and low scattering wideband planar phased antenna array with enhanced coupling (PAA-EC). The proposed chessboard-like PAA-EC consists of two different types of low-profile planar antenna elements that have similar radiation performance in the X-band. In addition, the two types of antenna elements have a 180°±37° reflection phase difference over the X-band, which guarantees the cancellation of scattering fields for low scattering purpose. On the other hand, an 8\times 8 reference PAA-EC and a low scattering PAA-EC are developed and fabricated to validate the radiation performance and scattering characteristics. The simulated and measured results show that the proposed low-profile planar PAA-EC operates in the 8-12 GHz band with ±45° scanning range. It also achieves at least 9 dB scattering cross section (SCS) reduction in the 8-15.2 GHz band as compared with the reference PAA-EC.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2021.3097099