Narrowband/wideband decoupling networks for antenna arrays and excitation ditribution control

In this paper, we present narrowband/wideband decoupling networks for antenna arrays. The narrowband decoupling network is composed of only lumped elements, and the design equations that are valid for arbitrary two-element antenna arrays are derived. Moreover, we discuss the excitation distribution...

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Bibliographic Details
Published in:	2018 International Workshop on Antenna Technology (iWAT) pp. 1 - 4
Main Authors:	Nishimoto, Kengo, Makimura, Hidetoshi, Yanagi, Takashi, Nishioka, Yasuhiro, Yoneda, Nofumi, Miyashita, Hiroaki
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-03-2018
Subjects:	Antenna arrays decoupling networks Design methodology Directional couplers excitation distribution mutual coupling Narrowband Power transmission lines Wideband
Online Access:	Get full text
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Summary:	In this paper, we present narrowband/wideband decoupling networks for antenna arrays. The narrowband decoupling network is composed of only lumped elements, and the design equations that are valid for arbitrary two-element antenna arrays are derived. Moreover, we discuss the excitation distribution of the antenna elements when this network is applied. The wideband decoupling network consists of directional couplers, a transmission line, and a parallel resonant circuit. This network is effective for strongly frequency-dependent antenna coupling, and the design method is derived. We design two-element antenna arrays with the narrowband/wideband decoupling networks and confirm the validity of these networks.
DOI:	10.1109/IWAT.2018.8379122