Novel design techniques for miniature circularly-polarized antennas using genetic algorithms

Pingjuan Li Werner, M. J. Wilhelm, R. T. Salisbury, L. D. Swann, Douglas Henry Werner

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations

Abstract

New methodologies introduced in this paper employ a Genetic Algorithm (GA) to evolve classes of antenna shapes that are circularly polarized and offer optimal performance characteristics such as input impedance, VSWR, bandwidth, and/or gain. These new methodologies are also capable of producing designs that are significantly smaller when compared to a conventional crossed-dipole antenna. It is demonstrated that by utilizing the design approaches for miniature, circularly polarized antennas introduced in this paper, size reductions of over 40% are typically achieved, and in some cases, it is even possible to realize designs with size reductions up to 86%. An important feature of these antennas is that the size reduction achieved is in terms of area, which differs from the case of stochastic linear dipoles where a reduction in length is achieved at the expense of an increase in width.

Original languageEnglish (US)
Pages (from-to)145-148
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume1
StatePublished - Sep 1 2003
Event2003 IEEE International Antennas and Propagation Symposium and USNC/CNC/URSI North American Radio Science Meeting - Columbus, OH, United States
Duration: Jun 22 2003Jun 27 2003

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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