Title :
A novel bow-tie feed for dual-layer pillbox antenna
Author :
Kui-sheng Feng ; Hong-tao Qin ; Na Li ; Zhen-xia Liu ; Jia-dong Xu ; Jun Li
Author_Institution :
Sch. of Inf. & Navig., Air Force Eng. Univ., Xi´an, China
Abstract :
This paper presents a novel feed for dual-layer pillbox antenna. The electric field distribution and return-loss of the feed Cavity are analyzed by using vector finite-element method and PML absorption boundary condition. The effect of the different Sub-reflector Shape on the electromagnetic field distribution and the beam width of the feed are studied. A new bow-tie feed structure is proposed. The simulation results show in the Ku band, the 3 dB beam width is more than 160°, and the VSWR was lower than 1.5, which provides a simple structure, superior performance feed form for double pillbox antenna.
Keywords :
antenna feeds; antenna radiation patterns; bow-tie antennas; finite element analysis; microwave antennas; Ku band; PML absorption boundary condition; bow-tie feed structure; double pillbox antenna; dual-layer pillbox antenna; electric field distribution; electromagnetic field distribution; feed cavity; return-loss; subreflector shape; vector finite-element method; Antenna feeds; Apertures; Cavity resonators; Probes; Vectors; Dual-layer pillbox antenna; bow-tie feed; vector finite element method; wide beam;
Conference_Titel :
Signal Processing, Communications and Computing (ICSPCC), 2014 IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4799-5272-4
DOI :
10.1109/ICSPCC.2014.6986277
