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International Journal of Antennas and Propagation
Volume 2017, Article ID 3490171, 9 pages
Research Article

Design of a Coupler with Three Reconfigurable Output Ports and a Beamwidth Reconfigurable Antenna

Electronic Engineering, Chosun University, 309 Pilmundae-ro, Dong-gu, Gwangju 61452, Republic of Korea

Correspondence should be addressed to Soon-Soo Oh;

Received 19 November 2016; Revised 8 January 2017; Accepted 30 January 2017; Published 6 April 2017

Academic Editor: Jaume Anguera

Copyright © 2017 Dong-Woo Kim and Soon-Soo Oh. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The design and fabrication of a coupler with three reconfigurable output ports have been proposed. The output ports of the proposed coupler can be adjusted by varying the number of shorting pins. An antenna with a reconfigurable beamwidth has been also involved in this paper. The proposed antenna has a coupler and a 1 × 3 array rectangular patch. The beamwidth is set by the number of output ports. The simulation and experiment show the verification of the proposed coupler and beamwidth variation of array antenna. The broadest measured beamwidth was 66.2° and the sharpest measured beamwidth was 24.1°.