Title :
An Octave Band Switched Parasitic Beam-Steering Array
Author :
Sutinjo, Adrian ; Okoniewski, Michal ; Johnston, Ronald H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta.
fDate :
6/29/1905 12:00:00 AM
Abstract :
In this letter, we introduce a new parasitic antenna array with a 360deg switchable coverage in the azimuthal plane. Unlike most switched parasitic arrays which are narrowband or at most dual band, this array covers an octave bandwidth. The frequency band of interest in this letter is the UHF band, particularly the 225-450 MHz tactical communication band. The array consists of a driven element surrounded by two layers of parasitic elements. The driven element is a wire frame biconical antenna and the parasitic elements are V-shaped bent wires. The proof-of-concept was simulated using FEKO method of moments (MoM) package and further verified using Ansoft HFSS. Simulation results show that the antenna gain is 6-10 dBi over an octave bandwidth
Keywords :
UHF antennas; beam steering; conical antennas; method of moments; military communication; wire antennas; 225 to 450 MHz; FEKO method of moments; MoM; UHF band; V-shaped bent wires; octave band switched parasitic beam-steering arrays; octave bandwidth; tactical communication band; wire frame biconical antenna; Antenna arrays; Azimuthal plane; Bandwidth; Communication switching; Dual band; Frequency; Moment methods; Narrowband; Packaging; Wire; Beam-steering; ESPAR antenna; circular array; parasitic array; wideband antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.895284
