Broadband $\Pi$-shaped aperature-coupled U-slotted microstrip patch antenna = 광대역 $\Pi$모양 개구면 결합 U 슬롯 마이크로스트립 패치 안테나

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A broadband aperture-coupled U-slotted microstrip patch antenna with a Π-shaped coupling slot fed by stripline is developed by means of discovering the different reactive natures between a concentrated and a distributed excitation to the U-slotted microstrip patch. At first a probe-fed U-slotted patch antenna covered by a thin dielectric superstrate as protective layer is designed and tested at Ku-band. The bandwidth for VSWR ≤ 2:1 is 39.5 % (11.6 - 17.3 GHz) in simulation and 36.6 % (11.6 ~ 16.8 GHz) in experiment. Then keep the structure of the patch with substrate and superstrate, but replace the probe-fed structure by using a Π-shaped coupling slot as the aperture fed by stripline. As a verification it is tested at both S-band and Ku-band. The bandwidth for VSWR ≤ 2:1 is 48.4 % (10.6 ~ 17.4 GHz) and 46.6 %(2.8 - 4.5 GHz) in simulation and 41.3 % (10.5 ~ 16.0 GHz) and 38.8 % (2.7 ~ 4.0 GHz) in experiment. The pattern bandwidth is narrower than impedance bandwidth. Cross-polarization-level is lower than a probe-fed U-slotted patch antenna.
Advisors
Myung, Noh-Hoonresearcher명노훈researcher
Description
한국과학기술원 : 전기및전자공학과,
Publisher
한국과학기술원
Issue Date
1999
Identifier
150804/325007 / 000953632
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학과, 1999.2, [ vii, 50 p. ]

Keywords

Aperture-coupled; Broadband; U-slotted microstrip patch antenna; Probe-fed; 동축선 급전; 개구면 결합; 광대역; U 슬롯 마이크로스트립 패치 안테나

URI
http://hdl.handle.net/10203/37115
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=150804&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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