Title :
Cavity-backed dual-polarized antenna for ultra-wideband radar systems
Author :
Fuguo Zhu ; Gao, Smith ; Ho, A.T. ; Brown, T.W. ; Jianzhou Li ; Gao Wei ; Jiadong Xu
Author_Institution :
Surrey Space Centre, Univ. of Surrey, Guildford, UK
Abstract :
This paper presents a new design of dual-polarized ultra-wideband (UWB) directional antenna. The antenna consists of four identical conventional UWB monopole antennas. It is excited by signals with equal amplitudes and 180° phase difference. A reflector is applied to achieve directional radiation patterns and improve the antenna gain. Simulated results show that the proposed antenna achieves a frequency range from 1.47 to 5.7 GHz. Relatively stable radiation patterns are observed across the whole operating frequency band.
Keywords :
UHF antennas; antenna radiation patterns; microwave antennas; monopole antennas; radar antennas; reflector antennas; ultra wideband antennas; antenna gain; cavity-backed dual-polarized antenna; directional radiation patterns; dual-polarized ultra-wideband directional antenna; frequency 1.47 GHz to 5.7 GHz; identical conventional UWB monopole antennas; reflector; relatively stable radiation patterns; ultrawideband radar systems; Antenna radiation patterns; Dipole antennas; Power dividers; Radar antennas; Ultra wideband antennas; UWB antenna; cavity-backed antenna; differential-fed antenna; dual-polarized antenna;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
