Title :
GO-based gain optimization of a dielectric lens antenna considering substrate reflections
Author :
Wenig, Peter ; Weigel, Robert
Author_Institution :
Electron. Eng., Univ. of Erlangen-Nuremberg, Erlangen, Germany
Abstract :
This paper introduces a novel method for optimizing the gain of a dielectric lens antenna in a cylindrical configuration, illuminated by planar microstrip antennas. Ray reflections involving the substrate layer lead to interference patterns for the gain. Instead of minimizing these reflections by quarter-wave-coatings, it is shown that they can be used for gain maximization. With geometrical optics analysis, parameter combinations for maximum gain are identified, that are confirmed by full wave electromagnetic simulation and by measurements.
Keywords :
dielectric devices; electromagnetic wave reflection; geometrical optics; interference (signal); lens antennas; microstrip antennas; optimisation; planar antennas; dielectric lens antenna; gain optimization; geometrical optics; interference patterns; microstrip antennas; planar antennas; quarter wave coatings; substrate reflections; Antenna feeds; Gain; Interference; Lenses; Solid modeling; Substrates; Three dimensional displays;
Conference_Titel :
Electromagnetic Theory (EMTS), 2010 URSI International Symposium on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-5155-5
Electronic_ISBN :
978-1-4244-5154-8
DOI :
10.1109/URSI-EMTS.2010.5637021
