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Progress In Electromagnetics Research
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A NOVEL LOW-PROFILE WIDEBAND UHF ANTENNA

By A.-X. Chen, T.-H. Jiang, Z. (. Chen, and D. Su

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Abstract:
In this paper, an ultra high frequency (UHF) low-profile antenna is proposed; it is based on the discone antenna but with addition of a back cavity, a short-circuiting structure and a two-plate top structure in order to achieve both low-profile and wideband. It is simulated and prototyped. The test results show that the antenna has an omni-directional radiation pattern in the horizontal plane, is of low-profile, has a height of less than 0.1λmax, and is wideband with an impedance bandwidth of 65% from 430 MHz to 845MHz for VSWR < 2.5 and an impedance bandwidth of 43% from 440 MHz to 680 MHz for VSWR < 2.0. The proposed antenna can be easily flush-mounted on a planar surface and therefore has great potential for uses on aircrafts and high-speed trains due to its conformal capability.

Citation:
A.-X. Chen, T.-H. Jiang, Z. (. Chen, and D. Su, "A Novel Low-Profile Wideband UHF Antenna," Progress In Electromagnetics Research, Vol. 121, 75-88, 2011.
doi:10.2528/PIER11081302
http://www.jpier.org/PIER/pier.php?paper=11081302

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