Mutual impedance formula between patch antennas based on synthetic asymptote and variable separation

  1. Y. X. Sun2,
  2. Y. L. Chow1,
  3. D. G. Fang2

Article first published online: 21 NOV 2002

DOI: 10.1002/mop.10640

Issue

Microwave and Optical Technology Letters

Microwave and Optical Technology Letters

Volume 35, Issue 6, pages 466–470, 20 December 2002

Additional Information

How to Cite

Sun, Y. X., Chow, Y. L. and Fang, D. G. (2002), Mutual impedance formula between patch antennas based on synthetic asymptote and variable separation. Microw. Opt. Technol. Lett., 35: 466–470. doi: 10.1002/mop.10640

Author Information

  1. 1

    City University of Hong Kong

  2. 2

    Nanjing University of Science and Technology

Publication History

  1. Issue published online: 21 NOV 2002
  2. Article first published online: 21 NOV 2002
  3. Manuscript Received: 24 JUN 2002

Funded by

  • Research Grants Council of Hong Kong
  • Defense Key Laboratory of Antennas and Microwaves, China

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Keywords:

  • mutual impedance;
  • patch antenna;
  • finite antenna array;
  • synthetic asymptote;
  • variable separation

Abstract

A formula for mutual impedance between patch antennas is constructed based on the physics of the static near field and the radiation far field of the couplings. This leads to a synthetic asymptote form [1] of separated variables of the center-to-center distance r and the azimuth angle ϕ. Only 12 coefficients are to be determined by matching with a full-wave analysis through commercial software, such as IE3D. Our formula is accurate and complete, with no restriction on the detailed structures of patch, feed, and substrate. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 35: 466–470, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10640

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