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| Content Provider | IET Digital Library |
|---|---|
| Author | Li, Rui Xu, Le Hu, Wei Yin, Ying Zeng Shi, Xiao Wei |
| Abstract | Conformal antenna arrays often have many elements with different radiation patterns and much cross-polarisation. Those factors make synthesising radiation patterns a difficult problem. In this study, the authors propose a balanced dynamic differential evolution (BDDE) algorithm to suppress the cross-polarisation in conformal arrays. To increase the probability of the inferior group participating in the mutant, a suboptimal individual is adopted in the mutant operation. Parameters are dynamically updated to accelerate the convergence speed. We adjust the cross-rate to its maximal value every few generations to increase the diversity in the population. Two conformal arrays are modelled to verify the ability of BDDE to synthesise the radiation pattern and polarisation simultaneously. To avoid increasing the number of unknowns caused by dual-feed antennas, circular polarised patch antennas with one feed are used to compose the conformal arrays. Embedded element patterns are used in the synthesis to take into account the influence of mutual coupling between the elements and their environment. We compare BDDE with other popular DE algorithms, and simulation results show that the proposed algorithm achieves lower sidelobe levels and cross-polarisation reliably and efficiently. |
| Starting Page | 1853 |
| Ending Page | 1860 |
| Page Count | 8 |
| ISSN | 17518725 |
| Volume Number | 11 |
| e-ISSN | 17518733 |
| Issue Number | Issue 13, Oct (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/11/13 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2017.0461 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2017-07-21 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Antenna Accessory Antenna Array Antenna Feeds Antenna Radiation Pattern Balanced Dynamic Differential Evolution Algorithm BDDE Algorithm Circular Polarised Patch Antenna Conformal Antenna Conformal Antenna Array Dual-feed Antenna Electromagnetic Wave Polarisation Embedded Element Pattern Evolutionary Computation Low-cross-Polarisation Synthesis Lower Sidelobe Levels Microstrip Antenna Array Mutant Operation Mutual Coupling Optimisation Technique Probability Radiation Pattern |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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