A computer-aided design of EMC microstrip dipole arrays using nonlinear optimization techniques
| Autor: | Masanobu Kominami, Tadashi Kohno, Hiroji Kusaka |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Engineering
business.industry Acoustics Energy Engineering and Power Technology computer.software_genre Integral equation Chebyshev filter Microstrip Stub (electronics) Microstrip antenna Dipole Transmission line Electronic engineering Computer Aided Design Electrical and Electronic Engineering business computer |
| Zdroj: | Electrical Engineering in Japan. 125:60-66 |
| ISSN: | 1520-6416 0424-7760 |
| DOI: | 10.1002/(sici)1520-6416(199812)125:4<60::aid-eej8>3.0.co;2-r |
| Popis: | This paper describes a method for designing electromagnetically coupled (EMC) printed dipole arrays. The advantages of EMC dipoles include greater bandwidth, higher efficiency, and an easier match to the feed lines, when compared to classically fed printed antennae. The excitation mechanism is provided by a strip transmission line embedded inside the substrate which couples energy parasitically to the microstrip antenna. Electromagnetically coupled microstrip dipoles have been investigated by empirical or approximate analysis techniques. As a result an approximate model has been derived for microstrip dipoles. The method is based on the method of moments solution to an integral equation derived from the approximate Green function for a grounded dielectric slab. The element lengths and offsets and the stub length of the EMC dipole array are determined by the direct search optimization method of Hooke and Jeeves. To show the feasibility of the proposed method, a mathematical formulation and numerical results are presented for Chebyshev arrays. © 1998 Scripta Technica, Electr Eng Jpn, 125(4): 60–66, 1998 |
| Databáze: | OpenAIRE |
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