A Scalable Ka-Band 1024-Element Transmit Dual-Circularly-Polarized Planar Phased Array for SATCOM Application

被引:76
作者
Luo, Xuan [1 ]
Ouyang, Jun [1 ]
Chen, Zhi-Hui [2 ]
Yan, Yi [1 ]
Han, Lei [3 ]
Wu, Zubing [2 ]
Yu, Tao [2 ]
Zheng, Kai [2 ]
机构
[1] Univ Elect Sci & Technol China UESTC, Sch Elect Sci & Engn, Chengdu 611731, Peoples R China
[2] Chengdu T Ray Technol Co Ltd, Chengdu 610041, Peoples R China
[3] Air Force Engn Univ, Air & Missile Def Coll Inst, Xian 710051, Peoples R China
关键词
Phased arrays; Polarization; Semiconductor device measurement; Couplings; Phase measurement; Liquid crystals; Ka-band; SATCOM; phased array; flat panel antenna; CMOS; dual-circularly-polarized; ANTENNA;
D O I
10.1109/ACCESS.2020.3019174
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper presents a scalable 1024-element transmit dual-circularly-polarized phased array for Ka-band satellite communication (SATCOM) terminal applications. The transmit array based on the CMOS beamformer and a multilayer printed circuit board (PCB) can steer up to large scan angles (+/- 60 degrees) with a scan loss less than 4.5 dB. With the 8-channel transmit beamformer, the array can realize dual circular polarization and the axial ratio (AR) of the array is less than 3 dB in the scanning range of +/- 30 degrees in both left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP) mode. The effective isotropic radiated power (EIRP) of the array achieves 74 dBm from 29.5 GHz to 30 GHz. The design and measurement of the 1024-element transmit array have presented a feasible way for mass production of a low cost active phased array.
引用
收藏
页码:156084 / 156095
页数:12
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