PEC cavity for a ring array of spiral antennas

Israël Hinostroza (1) , Régis Guinvarc'H (1) , Randy L. Haupt

1 SONDRA - Sondra, CentraleSupélec, Université Paris-Saclay (COmUE)

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).

Domaines: Electromagnétisme

Israël Hinostroza, Régis Guinvarc'H, Randy L. Haupt. PEC cavity for a ring array of spiral antennas. 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI 2014), IEEE, Jul 2014, Memphis, United States. pp.939-940, ⟨10.1109/APS.2014.6904798⟩. ⟨hal-01103943⟩