Dual-Band and Dual-Circularly Polarized Single-Layer Microstrip Array Based on Multiresonant Modes

2017 ◽  
Vol 65 (3) ◽  
pp. 1428-1433 ◽  
Author(s):  
Jin-Dong Zhang ◽  
Lei Zhu ◽  
Neng-Wu Liu ◽  
Wen Wu
Keyword(s):  
Single Layer ◽  
Dual Band ◽  
Circularly Polarized ◽  
Microstrip Array

scholarly journals Dual-Mode Circular Polarization Selective Surface Cell for Single-Layer Dual-Band Circularly Polarized Reflectarray

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Zheng Liu ◽  
Xue Lei ◽  
Jun-Mo Wu ◽  
Zhi-Jian Xu
Keyword(s):  
Circular Polarization ◽  
Three Dimensional ◽  
Discrimination Performance ◽  
Single Layer ◽  
Axial Ratio ◽  
Dual Band ◽  
Dual Mode ◽  
Circularly Polarized ◽  
Cell Rotation ◽  
Measured Efficiency

A dual-mode circular polarization selective surface (CPSS) cell based on a modification of the Pierrot cell is presented for single-layer dual-band circularly polarized (CP) reflectarray antenna design. To achieve dual-mode CP discrimination performance, the improved three-dimensional geometry and the high-order resonances of the CPSS cell are utilized. The required phase shifts in both modes are obtained by varying the cell rotation angle. A single-layer dual-band reflectarray operating with orthogonal CPs has been fabricated and tested. Measured results show the peak gains of 25.2 dBi at 11.6 GHz with 31% 3 dB axial ratio (AR) bandwidth and 26.5 dBi at 14.6 GHz with 32% 3 dB AR bandwidth, respectively. The measured efficiency is 41.2% at 11.6 GHz and 55.5% at 14.6 GHz.

A multi-layer approach of orthogonally fed circularly polarized microstrip array antenna for enhanced gain

2019 ◽  
Vol 11 (5-6) ◽  
pp. 532-542 ◽  
Author(s):  
Muhammad Asad Rahman ◽  
Eisuke Nishiyama ◽  
Md. Azad Hossain ◽  
Quazi Delware Hossain ◽  
Ichihiko Toyoda
Keyword(s):  
Integrated Circuit ◽  
Layer Structure ◽  
Single Layer ◽  
Array Antenna ◽  
Compact Structure ◽  
Circularly Polarized ◽  
Wireless Applications ◽  
Feed Network ◽  
Microstrip Array ◽  
Microstrip Array Antenna

AbstractA new circularly polarized microstrip array antenna using the orthogonal feed technique is proposed in this paper. The antenna has a multi-layer structure and a new 3-way power divider employing the both-sided microwave integrated circuit technology is designed to configure the feed network of the array. Circular polarization (CP) is realized by creating a quadrature phase difference between orthogonal feed circuits of the patches. The multi-layer structure gives flexibility to adjust the patch spacing that helps to reduce the sidelobe level of the antenna. It is found that the multi-layer structure exhibits a gain of about 2 dB higher than that of a single layer structure by means of sidelobe reduction. The proposed structure also exhibits good CP performances that are verified by a good agreement of measured and simulated results. Simple and compact structure makes the antenna suitable for various wireless applications.

Capacitively Coupled Single-Layer Dual-Band Circularly Polarized GPS Ring Antennas

2021 ◽  
Author(s):  
Nolan Evans ◽  
Yanxia Liu ◽  
Lotfollah Shafai ◽  
Dustin Isleifson
Keyword(s):  
Single Layer ◽  
Dual Band ◽  
Capacitively Coupled ◽  
Circularly Polarized

A Single-Layer Dual-Band Circularly Polarized Reflectarray With High Aperture Efficiency

2015 ◽  
Vol 63 (7) ◽  
pp. 3317-3320 ◽  
Author(s):  
Ruyuan Deng ◽  
Yilin Mao ◽  
Shenheng Xu ◽  
Fan Yang
Keyword(s):  
Single Layer ◽  
Dual Band ◽  
Circularly Polarized ◽  
Aperture Efficiency
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