Title :
A UHF Broadband Spider-Shaped Monopole Antenna
Author :
Xudong Bai ; Xianling Liang ; Changhong Zhang ; Junping Geng ; Ronghong Jin
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A broadband spider-shaped monopole antenna is designed for ultra-high frequency (UHF)-band airborne applications. The antenna consists of a dielectric sleeve, a bulb-like metal body, and eight arc metal pipes. Good agreement between the simulated and measured results are observed, where the proposed antenna achieves a wide impedance bandwidth of 52.7% for VSWR ≤ 2, covering the frequency range from 624 MHz to 1.07 GHz, with a stable maximum gain and azimuthal gain over 5 and 1.5 dBi, respectively, in the entire bandwidth.
Keywords :
UHF antennas; broadband antennas; microwave antennas; monopole antennas; UHF broadband spider-shaped monopole antenna; VSWR; arc metal pipes; azimuthal gain; bulb-like metal body; dielectric sleeve; frequency 624 MHz to 1.07 GHz; maximum gain; ultra-high frequency-band airborne applications; wide impedance bandwidth; Antenna measurements; Antenna radiation patterns; Broadband antennas; Gain; Metals; Azimuthal gain; bandwidth; monopole antenna; spider-shaped;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2317984
