DocumentCode :
2260970
Title :
Design & measurements techniques for circularly polarized, dual fed, high gain, lightweight, wideband conical horn antenna with suppressed side lobes & high performance radome for space applications
Author :
Hasan, Syed Azhar
Author_Institution :
Inst. of Space Technol. (SUPARCO), Karachi, Pakistan
fYear :
2010
fDate :
Nov. 29 2010-Dec. 2 2010
Firstpage :
26
Lastpage :
29
Abstract :
This paper discusses the design & measurement techniques of a circularly polarized, high gain, light weight, wide band conical horn antenna with suppressed side lobes and high performance radome for space applications. Innovative orthogonal Dual Fed technique along with 90 degrees phase shifter/ power coupler has been used to achieve wide circular polarization bandwidth of greater than 1.5 GHz for axial ratio <; 3 dB highly recommended for space applications thus making polarization independent of matching issues. Antenna has a wide bandwidth characteristic showing VSWR <; 2 for bandwidth range of 3.5 GHz. Space Heritage for horn antennas & its advantages over other antennas have also been discussed. High performance radome material with its effects on antenna gain & axial ratio characteristics has also been discussed. Absolute gain measurement techniques have been employed for the measurement of antenna gain. Simulation & Optimization for horn antenna has been done on Ansoft HFSS vll.
Keywords :
antenna feeds; antenna radiation patterns; broadband antennas; conical antennas; horn antennas; polarisation; radomes; satellite antennas; circularly polarized; design & measurements techniques; dual fed; high gain; high performance radome; lightweight; space applications; suppressed side lobes; wideband conical horn antenna;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas Propagation and EM Theory (ISAPE), 2010 9th International Symposium on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-6906-2
Type :
conf
DOI :
10.1109/ISAPE.2010.5696386
Filename :
5696386
Link To Document :
بازگشت