A Novel Low-profile Wideband Uhf Antenna
نویسندگان
چکیده
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 430MHz to 845 MHz for VSWR < 2.5 and an impedance bandwidth of 43% from 440 MHz to 680MHz for VSWR < 2.0. The proposed antenna can be easily flushmounted on a planar surface and therefore has great potential for uses on aircrafts and high-speed trains due to its conformal capability.
منابع مشابه
Broadband and Low Profile Antenna for Uhf Band
The requirement of wideband and compact devices is ever increasing in most communication systems. In addition, recent increases in the transmission and reception of information have created a need for broadband and low profile antennas. This necessity is particularly challenging in designing Radio Frequency (RF) products that demand these features at low RF bands. There are numerous situations ...
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