An optimized Ku-band corrugated feed horn antenna design for a Cassegrain reflector using multi-objective particle swarm optimization

  • Authors:

  • Mohammad Asif Zaman;Md. Gaffar;Md. Abdul Matin

  • Affiliations:

  • Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh;Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh;Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh

  • Venue:
  • WSEAS TRANSACTIONS on COMMUNICATIONS
  • Year:
  • 2011

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Abstract

In this paper, a Ku-band corrugated feed horn antenna for a Cassegrain reflector is designed and optimized. The horn dimension parameters are optimized so that it has a radiation pattern with a specific beamwidth which would illuminate the sub-reflector of the Cassegrain antenna with the desired taper. It is also required that the horn must have low S11 parameter and low cross-polarization levels. Multi-objective particle swarm optimization is performed to optimize the horn dimensions to meet these requirements. The radiation characteristics of the optimized horn are analyzed using computer simulation. The far-field radiation pattern of the Cassegrain reflector for the optimized feed horn is also discussed and compared with the case of an unoptimized horn.