A reflector impulse radiating antenna (IRA) with a new feeding structure

Author

Valibeiglou, Mojtaba ; Khaleghi, Ali

Author_Institution

ECE Dept., K.N. Toosi Univ. of Technol., Tehran, Iran

fYear

2014

fDate

6-11 April 2014

Firstpage

894

Lastpage

898

Abstract

A new design of the feeding structure for a parabolic reflector impulse radiating antenna (IRA) is presented. The proposed inverse back-to-back Vivaldi feeding arms provided an ultra-wideband matching for the frequency range of DC to 10GHz for the input impedance of 200 ohm. The reflector efficiency is better than 35% at frequencies between 2.5 to 10 GHz. The antenna matching, antenna gain, radiation pattern and efficiency, and far-field radiated pulse shape are presented. The antenna optimization for the improved performance in terms of return loss and radiation efficiency is conducted by adjusting the thickness and the width of the feeding arms. The full wave time domain simulations are presented.

Keywords

antenna feeds; antenna radiation patterns; ultra wideband antennas; IRA; antenna gain; antenna matching; antenna optimization; field radiated pulse shape; inverse back-to-back Vivaldi feeding arms; new feeding structure; parabolic reflector impulse radiating antenna; radiation pattern; ultrawideband matching; Antenna feeds; Apertures; Gain; Impedance; Reflector antennas; impulse radiation antennas (IRAs); reflector antenna; ultrawideband antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2014 8th European Conference on

Conference_Location

The Hague

Type

conf

DOI

10.1109/EuCAP.2014.6901906

Filename

6901906