CROSS-POLARIZATION REDUCTION FOR COMPACT OFFSET REFLECTOR ANTENNA USING CONJUGATE FEED
| Author(s) | : | Balvant J. Makwana, S. B.Sharma |
| Institution | : | Asst Asst Prof, EC Department Government Engineering College, Rajkot, Gujarat, India |
| Published In | : | Vol. 5, Issue 4 — April 2018 |
| Page No. | : | 317-320 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
This paper presents the design of a conjugate matched feed to get significant cross polar level reduction insecondary field pattern of offset reflector antenna system having very low F/D. This kind of feed will be advantageous inmany practical applications where the available space and weight for antenna structure is limited. The conjugate feed isimplemented in cylindrical waveguide by utilizing higher order modes, and in addition to fundamentalmode with proper amplitude and phase. The designed conjugate feed was then used to illuminate offset parabolicreflector antenna with F/D of 0.4 and offset angle of 90 degree, the secondary far field radiation patterns werecomputed. It is shown that significant reduction in the cross polarization level is observed compared to that ofillumination of offset reflector by conventional feed
Balvant J. Makwana, S. B.Sharma, “CROSS-POLARIZATION REDUCTION FOR COMPACT OFFSET REFLECTOR ANTENNA USING CONJUGATE FEED”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 5, Issue 4, pp. 317-320, April 2018.
