Title :
PEC cavity for a ring array of spiral antennas
Author :
Hinostroza, Israel ; Guinvarc´h, R. ; Haupt, R.L.
Author_Institution :
SONDRA, SUPELEC, Gif-sur-Yvette, France
Abstract :
The design of a low-profile PEC cavity for a ring array of spiral antennas is presented. The goal of the design is to determine the configuration of a finite cavity to provide maximum front-to-back ratio (FBR) while keeping a good reflection coefficient for an octave bandwidth. Wall height and distance from the base of the cavity to the antennas are varied. It is shown that a wall height smaller than the distance of the antennas to the base of the cavity provides the best option of FBR (up to 6 dB at low frequencies).
Keywords :
antenna arrays; spiral antennas; PEC cavity; finite cavity; maximum front-to-back ratio; octave bandwidth; reflection coefficient; ring array; spiral antennas; Antenna arrays; Arrays; Cavity resonators; Polarization; Spirals;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904798
