Compact Overlapping Annular Slot Array

Autor: Jeffrey Chalas, Ian T. McMichael, Frank S. Kolak, Eric D. Robinson
Rok vydání: 2018
Předmět:
Zdroj: 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
DOI: 10.1109/apusncursinrsm.2018.8609419
Popis: A four-element annular slot array is presented for applications requiring omnidirectional gain with minimal variation in azimuthal gain and phase. Cavity-backed annular slots are overlapped to form a single compact array aperture. The slot feed structures are designed to reduce undesirable modes and inter-element coupling. The resulting array achieves a simulated 2.5:1 VSWR bandwidth of 26% with less than +/-1 dB of azimuthal gain pattern ripple at the horizon and less than +/: 20 degrees of horizon azimuthal phase ripple.
Databáze: OpenAIRE