Title :
Height reduction of circular-cylindrical dielectric lens antennas
Author :
Komljenovic, Tin ; Sauleau, Ronan ; Sipus, Zvonimir ; Le Coq, Laurent
Author_Institution :
Fac. of Electr. Eng. & Comput., Univ. of Zagreb, Zagreb
Abstract :
A fast and accurate CAD tool for synthesizing layered circular-cylindrical dielectric lens antennas fed by pyramidal horn antennas has been recently developed. It is based on the G1DMULT (Green´s functions for 1D multilayered structures) algorithm which presumes that circular-cylindrical lenses are of infinite length. In this paper we study the effects of length truncation upon the lens radiation characteristics and define the range of validity of G1DMULT. Two height reduction techniques are also proposed. It is shown that they allow reducing the antenna size by a factor two, while preserving fan-beam radiation patterns and beam scanning capabilities.
Keywords :
CAD; Green´s function methods; antenna radiation patterns; electrical engineering computing; horn antennas; lens antennas; CAD tool; Green´s function method; beam scanning; circular-cylindrical dielectric lens antennas; fan-beam radiation patterns; height reduction techniques; length truncation; pyramidal horn antennas; Airborne radar; Algorithm design and analysis; Antenna radiation patterns; Broadband antennas; Dielectrics; Feeds; Green´s function methods; Horn antennas; Lenses; Radar 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
