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리액티브 소자를 이용한 광대역 PIFA 설계Wide Bandwidth PIFA Design Using Reactive Element

Other Titles
Wide Bandwidth PIFA Design Using Reactive Element
Authors
조하석문성진박경남이재석김형동
Issue Date
Apr-2014
Publisher
한국전자파학회
Keywords
Reactive Element; Broadband; Planar Inverted-F Antenna; Bandwidth; Radiation Pattern
Citation
한국전자파학회 논문지, v.25, no.4, pp 387 - 392
Pages
6
Indexed
KCI
Journal Title
한국전자파학회 논문지
Volume
25
Number
4
Start Page
387
End Page
392
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/160218
DOI
10.5515/KJKIEES.2014.25.4.387
ISSN
1226-3133
Abstract
본 논문에서는 USB Dongle에 적용 가능하고 Wibro(2.3~2.4 GHz), Wi-Fi(2.4~2.5 GHz), LTE7(2.5~2.7 GHz) 대역을 지원하는 광대역 안테나 설계 기법을 제안한다. 제안된 안테나는 PIFA(Planar Inverted-F Antenna) 구조를 기본으로 설계되었고, 리액티브 소자를 이용하여 임피던스 조절이 가능하고, 급전 구조와 방사체 간의 커플링을 조절하여 광대역을 실현하였다. 그 결과, 유전율이 4.4인 FR-4 PCB에서 15×5 mm의 협소한 공간에서 안테나의 대역폭은 반사계수 —10 dB 기준으로 약 1 GHz 대역폭을 실현했다. 측정된 반사 손실, 대역폭과 방사 패턴은 시뮬레이션 값과 잘 일치하였다.
In this paper, the broadband antenna design, which can be applied to USB Dongle, supporting Wibro(2.3~2.4 GHz), Wi-Fi(2.4~2.5GHz) and LTE7(2.5~2.7 GHz) is proposed technique. The proposed antenna was designed similar to PIFA type antennas. eactive elements were used to control the input impedance and wideband characteristics were achieved by controlling coupling between the feed structure and the radiator. As a result, the antenna printed on FR-4 PCB(=4.4, tan =0.02) occupying an area of 15×5 mm  was able to achieve bandwidth of 1 GHz from 2.1 to 3.1 GHz under VSWR=2. Measured return loss characteristics, bandwidth and radiation patterns were in good agreement with the simulated results.
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