60GHz 2D metal-only reflectarray with high gain and high aperture efficiency

Author(s):  
Woo Jin Byun ◽  
Yong Heui Cho
IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 30643-30654 ◽  
Author(s):  
Shaker Alkaraki ◽  
Yue Gao ◽  
Samuel Stremsdoerfer ◽  
Edouard Gayets ◽  
Clive G. Parini

Author(s):  
Karim Mazouni ◽  
Christian Pichot ◽  
Jérôme Lantéri ◽  
Jean-Yves Dauvignac ◽  
Claire Migliaccio ◽  
...  

In designing a Foreign Object Debris (FOD) detection system on airport runways, this paper deals with the performance of a 77 GHz reflectarray antenna (RA). Debris may be very small and have low radar cross section (RCS), leading to design a high gain primary-fed offset RA. To minimize the aperture blockage, the main radiation lobe is in the specular direction. The antenna has a maximum gain of 40 dBi and aperture efficiency of 50% over the frequency band 76–77 GHz. First measurements using a 77 GHz radar module were carried out on pavement.


2017 ◽  
Vol 65 (12) ◽  
pp. 6262-6273 ◽  
Author(s):  
Jiajia Guo ◽  
Shaowei Liao ◽  
Quan Xue ◽  
Shaoqiu Xiao

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 101239-101245
Author(s):  
Yanlin Hei ◽  
Min Wang ◽  
Wen Wu ◽  
Yizhou Wu

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Xueyao Ren ◽  
Xing Chen ◽  
Yufeng Liu ◽  
Wei Jin ◽  
Kama Huang

A novel microstrip antenna array, which utilizes Giuseppe Peano fractal shaped patches as its radiation elements and adopts a two-layer stacked structure for achieving both wideband and high-gain properties, is proposed. Parametric study estimates that the proposed antenna’s size can be arbitrarily adjusted by changing the fractal proportion while high aperture efficiency is maintained. Two prototypes with 2 × 2 and 4 × 4 fractal patches, respectively, on each layer are designed, fabricated, and measured. Both simulation and measurement results demonstrate that the proposed antenna possesses encouraging performances of wideband, high directivity, and high aperture efficiency simultaneously; for example, for the two prototypes, theirS11<-10 dB impedance bandwidths are 23.49% and 18.49%, respectively; at the working frequency of 5.8 GHz, their directivities are 12.2 dBi and 18.2 dBi, and their corresponding aperture efficiencies are up to 91.0% and 90.5%, respectively.


2014 ◽  
Vol 78 (2) ◽  
pp. 1011-1020 ◽  
Author(s):  
R. Pavithra ◽  
D. Mohanageetha ◽  
E. A. Mary Anita ◽  
M. Subramaniam

Author(s):  
Zhen‐Zhong Chen ◽  
Dong‐Fang Guan ◽  
Ru‐Qi Xiao ◽  
Zu‐ping Qian ◽  
Wen Wu ◽  
...  

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