Analysis and design of a novel hat feed with narrow beamwidth for the Fresnel zone plate antenna

Pirhadi, Abbas; Hakkak, Mohammad; Yousefnia, Mehdi

doi:10.1002/mmce.20355

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…Through years of evolution and development, different kinds of hat feeds have been designed as in References 10–18. All these designs simply assume that the phase efficiency of feed can be improved to almost 100% by using a ring‐shaped focus parabolic reflector.…”

Section: Introductionmentioning

confidence: 99%

A new phase efficiency calculation model for optimization of ahat‐fedreflector antenna with arbitrary radius of ring‐shaped phase center

Cai

Yan

et al. 2020

Int J RF Microw Comput Aided Eng

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A hat-fed reflector antenna with large radius of ring-shaped phase center (RSPC) is reported in this article. First, a new phase efficiency calculation model (PECM) based on new phase reference point is presented, which can accurately calculate the phase efficiency of a hat-fed with arbitrary radius of RSPC. Second, based on the invented PECM, the hat-fed can be optimized by using cosimulation method of HFSS and MATLAB, high aperture efficiencies are achieved in the whole band. To prove the validity of the new PECM, a hatfed reflector antenna with large radius of RSPC is designed, manufactured, and measured. The measured results are in good agreement with the simulations. The results show that the developed hat-fed reflector antenna has achieved a VSWR of less than 1.18, the peak realized gain of 43.5 dBi and an aperture efficiency of higher than 67.4% in the entire band from 12.25 to 14.5 GHz.

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Section: Introductionmentioning

confidence: 99%