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Design of a circularly polarized 8×8 patch antenna array using a new series-parallel Feed

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4 Author(s)
Zhang Yanjun ; EMC Lab., Beijing Univ. of Aeronaut. & Astronaut. (BUAA), Beijing, China ; Chen Aixin ; Cao Shunfeng ; Su Donglin

In this article, A novel 64-element high-gain circularly polarized patch antenna array in the a-band is presented. Sequential rotation technique is employed here and the patches are excited by a new series-parallel feed power distribution network with microstrip transmission lines to improve the antenna performance. The results achieved show that the microstip antenna array provides a minimum peak gain of 24.4 dBi at the center frequency 29 GHz. The input return loss less than -10 dB bandwidth of the array is about 12.2, and the 3 dB axial ratio bandwidth is achieved as 5.9. The proposed a-band circularly polarized antenna array has the advantages of low-cost, less weight, compact construction and easy to be integrated with F/microwave active circuits, and allows a good prospect of application in the phased array radar and satellite communication systems.

Published in:

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on

Date of Conference:

27-29 Oct. 2009