Antenna Design and Analysis Using the Sequential Loading Method
| Autor: | Joey R. Bray, Husam Osman |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Decimation
Admittance Basis (linear algebra) Computer science Acoustics 020206 networking & telecommunications Port (circuit theory) 02 engineering and technology Method of moments (statistics) Admittance parameters 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Antenna (radio) Computer Science::Information Theory |
| Zdroj: | IEEE Transactions on Antennas and Propagation. 68:7239-7244 |
| ISSN: | 1558-2221 0018-926X |
| DOI: | 10.1109/tap.2020.3008624 |
| Popis: | This article presents a new method for accurately designing and analyzing an antenna or array. The proposed technique operates solely on the transfer admittance matrix of a perfect electrically conducting antenna fabric that is obtained using a full-wave simulator only once. The desired antenna, which must be a subset of the fabric, is then synthesized by progressively loading the fabric and applying a computationally efficient iterative postprocessing technique that transforms the stored admittance matrix into one that corresponds to the desired antenna or array. Given that the admittance matrix of the fabric is used as the basis for all subsequent antennas that can be represented by the fabric, it contains the solutions to an entire class of antennas. The proposed method is demonstrated by applying it to the class of colinear antennas up to five wavelengths long, arranged along a single axis. The method is validated by comparing its results to those obtained using a conventional full-wave simulator. The proposed method is applied first to the case of multiple loads located at arbitrary port locations along the fabric. Then, open-circuited loads are used to decimate the tips of a linear antenna to demonstrate that the method accurately predicts the response of an electrically shorter antenna. Finally, decimation is used to transform the fabric into an array of smaller antennas, where it is shown that mutual coupling effects are accurately predicted. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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