Title :
Analysis and design of an ultra-wideband nested coaxial waveguide feed
Author :
Ruzheng, Wang ; Jinghui, Qiu ; Zhaohui, Song
Author_Institution :
Microwave Tech. Lab., Harbin Inst. of Technol., China
fDate :
Oct. 28 2003-Nov. 1 2003
Abstract :
In this paper a four-cavity 60:1 frequency bandwidth (1-60 GHz) ultra-wideband nested coaxial waveguide feed with extended center conductors is designed and analyzed. The performance of the feed is presented and discussed in detail. The feed has less than -10 dB reflection loss over its operating frequency. The excitation of the coaxial cavities is accomplished by impressing a circularly polarized TE/sub 11/ coaxial waveguide mode. The correlated parameters are rigorously carried out by experimental measurement (1-8 GHz) and a finite element method (FEM) computer simulation study (8-60 GHz).
Keywords :
broadband antennas; coaxial waveguides; finite element analysis; reflector antenna feeds; 1 to 60 GHz; circularly polarized TE/sub 11/ coaxial waveguide mode; electromagnetic reflector antenna; extended center conductors; finite element method; reflection loss; ultrawideband nested coaxial waveguide feed; Bandwidth; Coaxial components; Conductors; Feeds; Finite element methods; Frequency; Polarization; Reflection; Tellurium; Ultra wideband technology;
Conference_Titel :
Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 6th International SYmposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-7831-8
DOI :
10.1109/ISAPE.2003.1276655
