Wideband wide-beam high gain circularly polarized microstrip antenna array with artificial electromagnetic structure

Author(s):  
J. D. Lin ◽  
Z. P. Qian ◽  
W. Q. Cao ◽  
Q. Q. Wang ◽  
J. Jin
2010 ◽  
Vol 9 ◽  
pp. 1115-1118 ◽  
Author(s):  
Aixin Chen ◽  
Yanjun Zhang ◽  
Zhizhang Chen ◽  
Shunfeng Cao

2019 ◽  
Vol 61 (7) ◽  
pp. 1882-1888 ◽  
Author(s):  
Suman Wadkar ◽  
Balaji Hogade ◽  
Rinkee Chopra ◽  
Girish Kumar

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Pingyuan Zhou ◽  
Zhuo Zhang ◽  
Mang He ◽  
Yihang Hao ◽  
Chuanfang Zhang

A small-size 2×2 broadband circularly polarized microstrip antenna array is proposed in this article. The array has four broadband dual-feed U-slot patch antenna elements with circular polarization, and the sequential feeding technique is used to further enhance the 3 dB axial ratio bandwidth. The lateral size of the fabricated array is as small as 1.33λ0×1.33λ0, and the profile is only 0.04λ0. Measured results show that the overlapped −10 dB reflection coefficient and the 3 dB AR bandwidth is 53%, and the variation of the measured realized gain is less than 1 dB for S-band satellite communications (1.98–2.2 GHz).


2017 ◽  
Vol 65 (12) ◽  
pp. 7073-7082 ◽  
Author(s):  
Chun-Xu Mao ◽  
Steven Shichang Gao ◽  
Yi Wang ◽  
Josaphat Tetuko Sri Sumantyo

2013 ◽  
Vol 427-429 ◽  
pp. 648-651
Author(s):  
Xiao Feng Xiong ◽  
Wei Dong Chen

A novel broad band and wide beam microstrip helical antenna is proposed based on the modification of traditional helical antennas. Through selecting the appropriate operating mode between the axial mode and the normal mode, this new antenna can broad both the beamwidth and the bandwidth. To improve the gain of the antenna, An antenna array with 1*16 elements is designed and fabricated. Meanwhile, cavity-loaded feeding network is utilized for probe station measurement. The simulated impedance and radiation pattern are studied. The proposed antenna shows a wide impedance bandwidth from 7.6GHz to 9.6GHz for |S11|<-10dB, with wide 3dB beamwidth of E-plane about 1200, respectively.


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