Title :
A Dual-Band High-Gain Resonant Cavity Antenna with a Single Layer Superstrate
Author :
Fanji Meng ; Sharma, Satish K.
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this communication, we present a novel design of a dual-band high-gain resonant cavity antenna (RCA) with single polarization. First of all, the theory of dual-frequency operation of conventional RCA with single superstrate is discussed. Next, we designed a feed system, for dual-band operation with single polarization and directional patterns, two T-shape slots in nonradiating edges of the microstrip patch are introduced, which serves as the feed system of the designed dual-band high-gain RCA. Then, a full-wave analysis is performed to extract the impedance matching and radiation patterns of feed system and the complete RCA. At the last, measurement results are provided to compare with the modeling and simulations results which agree reasonably well.
Keywords :
antenna feeds; antenna radiation patterns; cavity resonators; directive antennas; electromagnetic wave polarisation; impedance matching; microstrip antennas; multifrequency antennas; slot antennas; RCA; T-shape slot; directional pattern; dual-band high-gain resonant cavity antenna; feed antenna system radiation pattern; full-wave analysis; impedance matching; microstrip patch nonradiating edge; single layer superstrate; single polarization; Antenna measurements; Dual band; Feeds; Frequency selective surfaces; Microstrip antennas; Reflection coefficient; Resonant frequency; Dual-band; Frequency Selective Surface; High Gain; Resonant Cavity Antenna; Superstrate; T-Slot; T-slot; frequency selective surface (FSS); high gain; resonant cavity antenna (RCA); superstrate;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2015.2405082
