Study of Horizontally Polarized Omnidirectional Microstrip Antenna Arrays

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Date
2017-04
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Referee
Mark
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Společnost pro radioelektronické inženýrství
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Abstract
This paper presents two microstrip antenna arrays for horizontally polarized (HP) omnidirectional application, namely rectangular patch antenna array and H-shaped patch antenna array. There are eight patch elements placed with back-to-back structure, four patch elements on each side. Antenna arrays are fed by a split eight power divider. The H-shaped patch antenna array has better omnidirectional performance than rectangular patch antenna array. The H-shaped antenna array is fabricated and measured. Both simulated and measured results show that the bandwidth of the designed H-shaped antenna array is 36 MHz with a center frequency 2.35 GHz. Horizontally polarized gains are greater than 7 dBi over the resonant band (S11<−10 dB), while the cross-polarization level is less than −25 dB. The proposed H-shaped antenna array has high directivity (half-power beam-width is only 20 deg) and good omnidirectional performance (gain variation less than 1.5 dBi) at the center frequency.
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Citation
Radioengineering. 2017 vol. 26, č. 1, s. 107-113. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2017/17_01_0107_0113.pdf
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Peer-reviewed
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en
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Creative Commons Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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