Ultra-wideband pattern diversity antenna with cavity

Author

Rezazadeh, Navid ; Shafai, L.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada

fYear

2014

fDate

13-16 July 2014

Firstpage

1

Lastpage

2

Abstract

A new ultra-wideband (UWB) pattern diversity antenna design is proposed and simulation results are presented. With a size 40×42×21 mm³, the proposed antenna structure consists of a disk radiating element, fed at two points at 90° angle by two coaxial lines. The excitation of feed lines determines the radiation pattern of the antenna, which is either directional or squinted. The disk and its feed lines are supported by a ground plane which is shaped like a cavity. The disks are also slightly modified in geometry to suppress unwanted radiation and increase ports isolation. The antenna shows an impedance bandwidth from 6.8 GHz to more than 15 GHz.

Keywords

antenna feeds; antenna radiation patterns; directive antennas; microwave antennas; planar antennas; ultra wideband antennas; UWB pattern diversity antenna; antenna radiation pattern; antenna structure; bandwidth 6.8 GHz to 15 GHz; cavity; coaxial lines; directional pattern; disk radiating element; feed lines; geometry; ground plane; impedance bandwidth; planar ultra wideband antennas; ports isolation; squinted pattern; ultra wideband pattern diversity antenna; unwanted radiation suppression; Antenna measurements; Antenna radiation patterns; Directive antennas; Ultra wideband antennas; directive antenna; pattern diversity; ultra-wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology and Applied Electromagnetics (ANTEM), 2014 16th International Symposium on

Conference_Location

Victoria, BC

Type

conf

DOI

10.1109/ANTEM.2014.6887740

Filename

6887740