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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Bekasiewicz, A. Koziel, S. |
| Copyright Year | 2002 |
| Abstract | In this letter, a surrogate-assisted optimization procedure for fast design of compact patch antennas with enhanced bandwidth is presented. The procedure aims at addressing a fundamental challenge of the design of antenna structures with complex topologies, which is simultaneous adjustment of numerous geometry parameters. The latter is necessary in order to find a truly optimum design and cannot be executed—at the level of high-fidelity electromagnetic (EM)-simulation models—using conventional numerical optimization procedures due to prohibitive computational cost. Here, we employ coarse-discretization EM simulations as faster representation of the antenna under design (referred to as a low-fidelity model). The low-fidelity model is enhanced using a combination of frequency scaling and response correction techniques. Frequency scaling is particularly suitable for reducing misalignment between EM models of various fidelities in case of narrowband structures. Iterative correction-prediction loop is capable to identify an optimum design at a reasonably low computational cost while adjusting all relevant geometry parameters at the same time. For the sake of illustration, we consider a modified patch antenna based on transversal signal-interference feed and additional slots in the radiator. Upon optimization, the antenna provided 29% bandwidth while maintaining a compact footprint of 645 |
| Sponsorship | IEEE Antennas and Propagation Society |
| Starting Page | 270 |
| Ending Page | 273 |
| Page Count | 4 |
| File Size | 879997 |
| File Format | |
| ISSN | 15361225 |
| Volume Number | 15 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2016-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Bandwidth Patch antennas Optimization Computational modeling Geometry Feeds surrogate-based optimization Bandwidth enhancement compact antennas electromagnetic (EM)-driven design patch antennas |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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