W-band slot antenna array for wide-angle phase scan and polarization flexibility

2016 ◽  
Author(s):  
Ahmed B. Numan ◽  
Jean-Francois Frigon ◽  
Jean-Jacques Laurin
Keyword(s):  
Antenna Array ◽  
Slot Antenna ◽  
Wide Angle ◽  
W Band ◽  
Phase Scan

scholarly journals Design of RCS Reduction Applied to W-Band Circularly Polarized Antenna Array

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Chun-Hong Chen ◽  
Pei-Yang Wang ◽  
Jun Chen ◽  
Ting Xu
Keyword(s):  
Antenna Array ◽  
Incident Wave ◽  
Single Layer ◽  
Slot Antenna ◽  
Polarization Conversion ◽  
Polarization Direction ◽  
Radiation Characteristics ◽  
Circularly Polarized ◽  
W Band ◽  
Relative Bandwidth

A single-layer capsule-shaped polarization conversion metasurface (PCM) is proposed in this paper. In the W-band, its polarization conversion rate (PCR) exceeds 97%, effectively changing the polarization direction of the incident wave. PCM is arranged in a chessboard array to achieve broadband RCS reduction. Placing the PCM array on a circularly polarized sequentially rotated slot antenna array, simulated results show that the radiation characteristics of the antenna array are hardly affected by the PCM array. The results of measurement demonstrate that the RCS of the antenna array with PCM array proposed is reduced by more than 10 dB from 40 to 119 GHz; the relative bandwidth (−10 dB) reaches 96.3%.

A Wideband Square-Slot Antenna Array With Superstrate and Electromagnetic Bandgap Reflector for 60-GHz Applications

2017 ◽  
Vol 65 (9) ◽  
pp. 4618-4625 ◽  
Author(s):  
Chih-Yu Cheng ◽  
Jiun-Peng Chen ◽  
Hsin-Lung Su ◽  
Ken-Huang Lin
Keyword(s):  
Antenna Array ◽  
Slot Antenna ◽  
60 Ghz ◽  
Electromagnetic Bandgap
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