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The basic objective of this paper is to apply the concept of matched feed (conjugate field matching) in a cylindrical corrugated structure and to present the design of a novel corrugated matched feed. The designed corrugated matched feed is then used as a primary feed to illuminate the offset parabolic reflector antenna and the secondary radiation pattern has been estimated. The simulated results...
This letter presents the improved cross-polar performance of a matched feed with an offset parabolic reflector antenna of low focal-length-to-diameter (F/D) ratio and higher offset angle. In the pyramidal horn, the higher order mode (TE11) has been added in correct amplitude and phase with respect to the dominant mode (TE01) . Parametric study on the secondary radiation pattern has been carried out...
The present paper deals with the comparison of matched feed performance with that of the conventional potter horn when used with an offset parabolic reflector. The effect of TE21 mode amplitude on the cross polarization has been studied in order to ascertain the suitable TE21 modal amplitude. Followed this, the behavior of change of TE21 modal amplitude with offset angle (thetas0) has been investigated...
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