Title :
Efficiency of electrically small UHF/VHF resonator antennas with matching network
Author_Institution :
Lab. of Electromagn. Syst. Res., Cranfield Univ., Swindon, UK
fDate :
March 31 2014-April 1 2014
Abstract :
The fundamental properties of electrically small cavity resonant UHF/VHF antennas are investigated using analytic and full-wave finite element modelling. The design trade-off´s between radiation efficiency, impedance bandwidth and gain are established by analysis and measurements. It is demonstrated that non-radiating portions of the antenna structure such as the matching network and ground plane must be taken into account since they too may contribute to the antenna performance.
Keywords :
UHF antennas; VHF antennas; antenna radiation patterns; finite element analysis; FEM; UHF antennas; VHF antennas; analytic modelling; antenna performance; antenna structure; design trade-off; electrically small cavity resonant antennas; full-wave finite element modelling; ground plane; impedance bandwidth; matching network; nonradiating portions; radiation efficiency;
Conference_Titel :
Computation in Electromagnetics (CEM 2014), 9th IET International Conference on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-817-2
DOI :
10.1049/cp.2014.0245
