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Journal Article Design and Analysis of TX/RX Dual Microstrip Antenna using FDTD at Ku-band
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Authors
Jae Seung Yun, Hang Suk Noh, Soon Ick Jeon, Chang Ju Kim
Issue Date
2003-08
Citation
Electronics Letters, v.39, no.17, pp.1228-1230
ISSN
0013-5194
Publisher
IET
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1049/el:20030695
Project Code
03MR3100, MoBISA(Mobile Broadband Interactive Satelltive Satellite Access Technology) Development, Lee Ho Jin
Abstract
A TX/RX dual microstrip 8 × 4 array antenna for satellite communication is designed, fabricated and measured and its element characteristics are analysed using finite difference time domain (FDTD). TX/RX frequency ranges are 14.0-14.5 GHz, 11.7-12.75 GHz, respectively, and vertical and horizontal polarisations are used for TX and RX. This antenna uses microstrip direct feeding for RX and aperture coupled stripline feeding for TX and accommodates stacked elements for a high directivity and wide impedance bandwidth. FDTD gives more accurate results because of the consideration of finite structure and imperfect two ground planes. This element has a return loss below -8 and -14 dB over the TX and RX frequency ranges and a gain of 7.5 and 8.3 dBi at the centre frequency of TX and RX. Return loss below -10 and -14 dB and a gain of 21.4 and 20.0 dBi were achieved for the TX and RX array, respectively.
KSP Keywords
5 GHz, Aperture coupled, Array antenna, Finite Difference Time Domain(FDTD), High directivity, Ku-Band, Return loss(RL), coupled stripline, design and analysis, ground planes(GP), microstrip antenna