Title :
A wideband dipole feed for big reflector antenna
Author :
Yu Jinglong ; Jin Chengjin
Author_Institution :
Nat. Astron. Obs., Beijing, China
Abstract :
A wideband dipole feed with symmetrical E&H plane patterns is presented for use in reflector antennas. In this paper we describe the design, construction and characterization of a wideband dipole feed for FAST antennas covering the frequency range 70 to 140 MHz. Main goals of our design are, 1) covering octave bandwidth, 2) the feed has symmetrical E & H plane patterns, and 3) the physical dimension is suitable for mounting it in the reserved position of the FAST feed cabin . We hope that four frequency range of FAST antennas will be equipped with this wideband dipole feeds. Preliminary simulation results indicate that we have met most of our design goals.
Keywords :
VHF antennas; broadband antennas; dipole antennas; reflector antenna feeds; E plane patterns; FAST antennas; H plane patterns; big reflector antenna; five hundred-meter aperture spherical radio telescope; frequency 70 MHz to 140 MHz; octave bandwidth; wideband dipole feed; Bandwidth; Feeds; Ground penetrating radar; Reflector antennas;
Conference_Titel :
Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-7-5641-4279-7
