A Circularly-Polarized Array Antenna Using Linearly-Polarized Sub Grid Arrays for Highly-Integrated 60-GHz Radio

2013 ◽  
Vol 61 (1) ◽  
pp. 436-439 ◽  
Author(s):  
Bing Zhang ◽  
Yue Ping Zhang ◽  
Diane Titz ◽  
Fabien Ferrero ◽  
Cyril Luxey
IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 85950-85957
Author(s):  
Takashi Tomura ◽  
Yuta Saito ◽  
Jiro Hirokawa

2011 ◽  
Vol E94-C (10) ◽  
pp. 1618-1625 ◽  
Author(s):  
Yohei MIURA ◽  
Jiro HIROKAWA ◽  
Makoto ANDO ◽  
Kazufumi IGARASHI ◽  
Goro YOSHIDA

2015 ◽  
Vol 8 (6) ◽  
pp. 921-929 ◽  
Author(s):  
Muhammad Asad Rahman ◽  
Quazi Delwar Hossain ◽  
Md. Azad Hossain ◽  
Eisuke Nishiyama ◽  
Ichihiko Toyoda

A new circularly polarized planar array antenna using linearly polarized microstrip patches is designed and optimized for X-band wireless communication applications. Four square patch elements with feed network are used to design the circularly polarized array antenna. The feed network consists of microstrip lines on the obverse side of the dielectric substrate and slot line on the reverse side of the substrate. Both-sided MIC technology is successfully employed to apply its inherent advantages in the design process of the array structure. The unequal feed line is used to create 90° phase difference between the linearly polarized patches. Therefore, the circular polarization is realized by the combination of linearly polarized patches and unequal feed line. Characteristics of the proposed array are investigated by using two electromagnetic (EM) simulators: advanced design system and EMPro. The −10 dB impedance bandwidth of the antenna is around 5%. The 3 dB axial ratio bandwidth of 1.48% is obtained. The design of the proposed antenna along with parametric study is presented and discussed.


Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ghulam Fatima Kakepoto ◽  
Shaoqiu Xiao ◽  
Farman Ali Mangi

Abstract A wideband circularly polarized (CP) array antenna has significant importance in modern communication system. In this paper, we proposed a wide band CP array by combing dual split ring resonators (DSRRs) to dual layer microstrip antenna. A 2 × 2 dual-layer microstrip antenna array is used to radiate wide band linearly polarized wave, and the 3 × 3 four-layer DSRRs is used as an external polarizer which converts linearly polarized wave to circularly polarized wave at distinct frequencies. The proposed array achieves an impedance bandwidth of 20% ranging from 4.57–5.57 GHz and AR bandwidth of 16.83% ranging from 4.57–5.41 GHz. The prominent futures of the proposed array are wide impedance bandwidth on desired frequencies. This new concept is theoretically and experimentally investigated to evaluate the performance of the proposed array, which allows a better prospect for the application of radar and satellite communication systems.


Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4326
Author(s):  
Qinyi Lv ◽  
Yu-Hang Yang ◽  
Shi-Gang Zhou ◽  
Chan Shao ◽  
Deyun Zhou ◽  
...  

A single-layer ±45° dual-polarized directional array antenna for millimeter wave (mm-wave) applications is designed in this communication. Based on the theory of orthogonal circularly polarized (CP) wave multiplexing, two ports of a series-fed dual CP array are fed with equal amplitudes, and the array can radiate a linearly polarized wave with ±45° polarization orientations through the adjustment of the feeding phase difference. As the two ports of the series-fed array are simultaneously excited, the antenna can achieve directional radiation. In addition, the cross-polarization level of the array can be effectively suppressed by placing two series-fed arrays side by side. A prototype of the designed array antenna operating at 30 GHz is fabricated and measured; the working bandwidth of the proposed antenna is approximately 3.5%. Owing to its simple structure and directional radiation, the proposed antenna array is a competitive candidate for mm-wave applications.


2013 ◽  
Vol 61 (12) ◽  
pp. 6228-6232 ◽  
Author(s):  
Wenmei Zhang ◽  
Y. P. Zhang ◽  
Mei Sun ◽  
Cyril Luxey ◽  
Diane Titz ◽  
...  

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