Design of low profile wideband omni-directional antenna

Author

Wang, Xin-wei ; Qin, Fan ; Wei, Gao ; Xu, Jia-dong

Author_Institution

Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi´´an, China

fYear

2012

fDate

18-20 July 2012

Firstpage

1

Lastpage

4

Abstract

A flush-disc antenna with a low profile is proposed in this paper. It can get nearly omni-directional radiation patterns and operate over a wide frequency range. The direction of maximum radiation is at 45°. By adding slots and conducting pins on the radiating aperture, the antenna can achieve a wide bandwidth with a low profile structure. The antenna covers a bandwidth from 2.5 to 4.0 GHz. The VSWR is less than 2 and the gain is up to -2dBi. The design and simulation of antenna are carried out by using the software Ansoft HFSS and a prototype of the antenna is developed and measured. The results of measurement are in good agreement with the simulations. The antenna will be useful for applications in satellite communications telemetry, tracking and command (TTC), and terrestrial mobile communication systems.

Keywords

UHF antennas; antenna radiation patterns; broadband antennas; microwave antennas; omnidirectional antennas; bandwidth 2.5 GHz to 4.0 GHz; conducting pins; flush-disc antenna; low profile wideband antenna; omni-directional antenna; omni-directional radiation patterns; radiating aperture; satellite communications telemetry; slots; software Ansoft HFSS; terrestrial mobile communication; tracking and command; Antenna measurements; Antenna radiation patterns; Bandwidth; Conductors; Directive antennas; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2012 8th International Symposium on

Conference_Location

Poznan

Print_ISBN

978-1-4577-1472-6

Type

conf

DOI

10.1109/CSNDSP.2012.6292643

Filename

6292643