Title :
A Compact Antipodal Vivaldi Antenna for UWB Applications
Author :
Natarajan, Rajesh ; George, Jithila V. ; Kanagasabai, Malathi ; Shrivastav, Arun Kumar
Author_Institution :
Dept. of Electron. & Commun. Eng., Anna Univ., Chennai, India
Abstract :
A compact antipodal Vivaldi antenna (AVA) with the dimension of 42 ×36 ×1.6 mm3 is proposed in this letter. Structural modifications in the radiating fins have increased the electrical length thereby reducing the lower operating frequency from 5.2 GHz to 3.7 GHz. Proposed antenna maintains -20 dB copolarization to cross-polarization ratio throughout the operating bandwidth. The prototype is fabricated and the measurement results are presented to validate the performance of the proposed AVA.
Keywords :
microwave antennas; ultra wideband communication; AVA; UWB applications; compact antipodal Vivaldi antenna; cross-polarization ratio; frequency 3.7 GHz to 5.2 GHz; structural modifications; Antenna measurements; Bandwidth; Gain; Slot antennas; Ultra wideband antennas; Vivaldi antennas; Balanced antipodal Vivaldi antenna (BAVA); impedance bandwidth; radar cross section; tapered slot antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2015.2412255
