Abstract
Abstract In this paper, we propose a novel reconfigurable antenna that can change the electrical shape of the matching network using RF switches of PIN diodes. The designed antenna operates at two different modes that are Mode 1 (HSDPA band, 2.1 ～ 2.2 GHz) and Mode 2(WiBro ․ WiFi band, 2.3 ～ 2.5 GHz). The antenna is built on both sides of a polyarcylate substrate. The measured reflection coefficient shows a matching bandwidth of 547 MHz(S 11 < − 3 dB, 2.035 ～ 2.582 GHz) for Mode 1 and 600 MHz(S 11 < − 3 dB, 2.2 ～ 2.8 GHz) for Mode 2, and it shows average vertical gains of − 4.4 dBi and − 4.5 dBi in x-y plane, respectively.Key words : Reconfigurable Antenna, T-Matching Network, Parallel T-Matching Network 「본연구는지식경제부및정보통신산업진흥원의대학IT연구센터육성지원사업의연구결과로수행되었음(NIPA-2012-H0301-12-2007).」 삼성전자DMC 연구소(Samsung Electronics Digital Media & Communication R & D Center)*홍익대학교전자전기공학부(School of Electronic and Electrical Engineering, Hongik University)․Manuscript received May 17, 2012 ; Revised November 29, 2012 ; Accepted December 7, 2012. (ID No. 20120517-060)․Corresponding Author : Hosung Choo (e-mail : hschoo@hongik.ac.kr)
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