Title :
Impact of substrate permittivity on the performance of UWB monopoles
Author :
Quintero, Gabriela ; Zurcher, J.F. ; Skrivervik, Anja
Author_Institution :
Lab. of Electromagn. & Acoust. (LEMA), Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne
Abstract :
The effect of substrate permittivity on UWB antenna radiation is studied. Microstrip and CPW-fed UWB monopoles are designed using substrates with different dielectric constants. The radiation patterns are measured. The transfer function of a two identical antenna system is calculated and later the received pulse is compared with the radiated pulse. Distortion produced by the antennas in every azimuth angle of radiation is quantified with the fidelity factor. The different radiation characteristics of each antenna are discussed. A conclusion is given about the feasibility to make UWB antennas using high permittivity substrates.
Keywords :
antenna feeds; antenna radiation patterns; microstrip antennas; monopole antennas; permittivity; ultra wideband antennas; UWB antenna radiation; UWB monopoles; dielectric constants; fidelity factor; microstrip monopoles; radiation patterns; substrate permittivity; transfer function; Antenna measurements; Antenna radiation patterns; Dielectric constant; Dielectric measurements; Dielectric substrates; Distortion measurement; Microstrip; Permittivity measurement; Transfer functions; Ultra wideband antennas;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
