Title :
Full-model analysis of a radial line slot antenna including the feeder and improvement of aperture field uniformity by shift of position of each slot pair in the radial direction
Author :
Sudo, Kaoru ; Hirokawa, Jiro ; Ando, Makoto ; Sierra-Castaner, Manuel
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Japan
Abstract :
A full model structure of CA-RLSA with feeder has been analyzed by using the MoM. The results of the calculated aperture-field show reasonable agreement with the experimental ones on the outermost round of slot pairs by the full-model analysis. We propose a design method by using this full-model analysis. The ρ-positions of the slot pairs are adjusted respectively to suppress the deviation of the phase in the φ-direction. As a result of the design, enhancement of the aperture efficiency is 2 %.
Keywords :
antenna feeds; antenna radiation patterns; aperture antennas; method of moments; slot antenna arrays; CA-RLSA; MoM; aperture field; aperture field uniformity; feeder; full-model analysis; radial direction; radial line slot antenna; slot pair position; Antenna feeds; Aperture antennas; Directive antennas; Linear antenna arrays; Magnetic analysis; Magnetic field measurement; Mesons; Postal services; Rectangular waveguides; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1331843
