Vol. 26

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2011-09-22

An Out-of-Line Series-Fed Microstrip Array Fed by Novel Curled-Horn-Shaped Stub with Low Cross-Polarization

By Dan Sun, Wen-Bin Dou, Li-Zhi You, and Xuequan Yan
Progress In Electromagnetics Research Letters, Vol. 26, 169-180, 2011
doi:10.2528/PIERL11071306

Abstract

A novel out-of-line series-fed patch array with low cross-polarization is presented in this paper. The element in the array is fed by a stub through one-port. The feeding stub is designed to be a novel curled-horn-shaped geometry, which can effectively suppress the cross-polarization due to its symmetry. The linear array consists of two identical subarrays which are located oppositely. By the antiphase feeding of two subarrays, the cross-polarization is further reduced. Furthermore, the theory analyses of the series-fed array indicate that it is competent for being applied to phased array systems. The simulated results show the cross-polarization levels of the linear array with 20 novel elements in E and H plane are lower than −30 dB and −60 dB, respectively. And, a prototype array is fabricated. Its low cross-polarization levels confirm the effective performance of the proposed design.

Citation


Dan Sun, Wen-Bin Dou, Li-Zhi You, and Xuequan Yan, "An Out-of-Line Series-Fed Microstrip Array Fed by Novel Curled-Horn-Shaped Stub with Low Cross-Polarization," Progress In Electromagnetics Research Letters, Vol. 26, 169-180, 2011.
doi:10.2528/PIERL11071306
http://www.jpier.org/PIERL/pier.php?paper=11071306

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