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| Content Provider | IET Digital Library |
|---|---|
| Author | Wang, Congsi Wang, Yan Zhou, Jinzhu Wang, Meng Zhong, Jianfeng Duan, Baoyan |
| Abstract | Complex operating environment could introduce serious degradation to the electromagnetic performance of active phased array antenna in both the main lobe and sidelobe areas. The effective compensation techniques become the key for antenna to perform in reliable service condition. Therefore, a method combined coupled structural-electromagnetic model with two-dimensional fast Fourier transform for compensation is presented. A compensation calculation model of the excitation current for planar array is established accordingly, quantitatively expressing the relationship between the excitation current compensation and the structure error. The adjustment quantities of excitation amplitude and phase can be quickly obtained and implemented to recover a high-quality pattern from a distorted antenna in both the main lobe and sidelobe areas. Lastly, the simulation of the space-based array antenna is illustrated to compensate its property under the impact of space environment and heat power from its electric devices. Furthermore, an experiment platform of an X-band active phased array antenna with 32 × 24 elements is built and tested for the electromagnetic performance compensation. The simulation and experimental results show that the proposed method can guarantee the performance of the service antenna quickly and effectively in the whole observation area. |
| Starting Page | 954 |
| Ending Page | 962 |
| Page Count | 9 |
| ISSN | 17518725 |
| Volume Number | 12 |
| e-ISSN | 17518733 |
| Issue Number | Issue 6, May (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/12/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2017.0814 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2017-12-12 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Active Antenna Array Active Phased Array Antenna Electromagnetic Performance Antenna Array Antenna Phased Array Antenna Radiation Pattern Combined Coupled Structural-electromagnetic Model Compensation Distorted Planar Array Antenna Effective Compensation Technique Electric Device Electromagnetic Coupling Electromagnetic Performance Compensation Excitation Current Compensation Calculation Model Fast Fourier Transform Heat Power High-quality Pattern Integral Transforms in Numerical Analysis Microwave Antenna Array Planar Antenna Array Sidelobe Areas Space Environment Space-based Array Antenna Simulation Structural–electromagnetic Coupling Two-dimensional Fast Fourier Transform X-band Active Phased Array Antenna |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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