A Novel Compact Dual-Linear Polarized UWB Antenna for VHF/UHF Applications

Author

Osaretin, Idahosa A. ; Torres, Al ; Chen, Chi-Chih

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

145

Lastpage

148

Abstract

A new compact dual-linearly polarized ultrawideband (UWB) antenna for continuous operation from 100 to 2000 MHz band with a minimum realized gain of -15 dBi is presented. The bore-sight realized gain monotonically increases from -15 dBi at 90 MHz to 0 dBi at 600 MHz, and remains approximately +4 dBi above 1000 MHz. The flared horn section closer to the feed is responsible for radiation above 1000 MHz. The compactness of this antenna at low frequency is achieved via ferrite absorber treatment on the ground plane and series inductive loading at the end of the antenna arms. The overall antenna size is a diameter of 15 in and height of 6 in. Linearly polarized fields are radiated from two orthogonal antennas. This antenna is suitable for software-defined radio application.

Keywords

UHF antennas; VHF antennas; antenna feeds; antenna radiation patterns; horn antennas; linear antennas; multifrequency antennas; polarisation; ultra wideband antennas; UHF application; UWB antenna; VHF application; antenna radiation; compact dual-linear polarized ultrawideband antenna feed; ferrite absorber treatment; flared horn section; frequency 90 MHz to 2000 MHz; orthogonal antenna; series inductive loading; software-defined radio application; Dual-polarization; ferrites; small antennas; ultrawideband (UWB) antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2009.2012881

Filename

4749322