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Novel dual-band decoupling network for two-element closely spaced L-shape antenna array

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3 Author(s)
Kai-Chi Lin ; Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan (R.O.C.) ; Cheng-Hsun Wu ; Tzyh-Ghuang Ma

An innovative dual-band decoupling network for two-element closely spaced L-shape antenna array is proposed for MIMO applications. The new architecture, combining the reactive element decoupling technique and the eigenmode decoupling approach, provides dual-band decoupling capability with good radiation characteristics. The core building block is a unique dual-mode four-port network; it functions as a conventional 180° hybrid coupler in one frequency band but is equivalent to a pair of isolated direct-thru transmission lines in the other band. The design concept, circuit topology and experimentally results will be discussed in this paper.

Published in:

Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation

Date of Conference:

8-14 July 2012