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| Content Provider | IET Digital Library |
|---|---|
| Author | Koziel, Slawomir Bekasiewicz, Adrian |
| Abstract | The study addresses a problem of low-cost statistical analysis and yield optimisation of circularly polarised (CP) microstrip antennas. For the sake of computational efficiency, auxiliary response surface approximation models are utilised to establish a fast representation of the expensive full-wave electromagnetic (EM)-simulation antenna model. The surrogate permits feasible Monte Carlo (MC) analysis using a large number of random samples (necessary to maintain low variance of yield estimation). The sequential approximate optimisation is then utilised to carry out a robust design, where at each iteration, a new surrogate model is established in a relocated domain. The design objectives are set for the in-band axial ratio and impedance bandwidth. For illustration purposes, a planar CP antenna with two feed line stubs is considered. Accurate yield estimation is obtained at the cost of only a hundred of EM antenna simulations despite a large number of independent geometry parameters. Yield improvement from the initial value of 63.5% at the nominal design to 99% is achieved at the cost of 300 EM analyses. Comparison with conventional MC analysis is also provided demonstrating the accuracy of the presented approach. |
| Starting Page | 2060 |
| Ending Page | 2064 |
| Page Count | 5 |
| ISSN | 17518725 |
| Volume Number | 12 |
| e-ISSN | 17518733 |
| Issue Number | Issue 13, Oct (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/12/13 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5343 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2018-07-06 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Antenna Accessory Antenna Feeds Antenna Radiation Pattern Approximation Theory Auxiliary Response Surface Approximation Model Circularly Polarised Microstrip Antenna CP Microstrip Antenna Electromagnetic Wave Polarisation Feed Line Stubs Full-wave Electromagnetic-simulation Antenna Model Full-wave EM-simulation Antenna Model Impedance Bandwidth In-band Axial Ratio Independent Geometry Parameter Interpolation And Function Approximation Iterative Method Low-cost Statistical Analysis MC Analysis Microstrip Antenna Monte Carlo Analysis Monte Carlo Method Numerical Analysis Optimisation Optimisation Technique Planar Antenna Planar CP Antenna Sequential Approximate Optimisation Single Antenna Statistical Analysis Surrogate Model Yield Optimisation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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