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Paper Details

Paper Title
Cross-Polarization Reduction for Compact Offset Reflector Antenna Using Conjugate Feed
This paper presents the design of a conjugate matched feed to get significant cross polar level reduction in secondary field pattern of offset reflector antenna system having very low F/D. This kind of feed will be advantageous in many practical applications where the available space and weight for antenna structure is limited. The conjugate feed is implemented in cylindrical waveguide by utilizing higher order modes, 〖TE〗_21 and 〖TM〗_11 in addition to fundamental 〖TE〗_11 mode with proper amplitude and phase. The designed conjugate feed was then used to illuminate offset parabolic reflector antenna with F/D of 0.4 and offset angle of 90 degree, the secondary far field radiation patterns were computed. It is shown that significant reduction in the cross polarization level is observed compared to that of illumination of offset reflector by conventional feed
horn; conjugate feed; cross polarization; compact offset reflector antenna; , multimode horn.
Others Details
Paper Id : 48459
Author Name : Balvant J. Makwana
Co-Author Name(s) : S. B.Sharma
Volume/Issue No : Volume 05 Issue 04
Page No : 317-320
DOI Number : DOI:10.21090/IJAERD.48459
Publication Date : 2018-04-10
License : This work is licensed under a Creative Commons Attribution 4.0 International License.
website :
Impact Factor : 4.72, SJIF-2016
ISSN Details : eISSN: 2348-4470, pISSN:2348-6406