Abstract
AbstractAn accurate and efficient multi-domain analysis approach is presented for radiation characteristic analysis of radome-enclosed large slotted-waveguide antenna arrays based on parallel domain decomposition algorithm (DDA) finite element-boundary integral-multilevel fast multipole algorithm (FE-BI-MLFMA). Each slotted-waveguide antenna and the radome are taken as sub-domains by employing the finite element method (FEM) based on the regional entities, and the sub-domains communicate through the boundary integral (BI) equation. In the radome FEM domain, the DDA can be applied to the FE-BI-MLFMA to greatly reduce the computation resource and achieve high efficiency. The comparisons of the numerical results with the conventional single-domain FE-BI-MLFMA demonstrate that the multi-domain method has good accuracy and high efficiency. The frequency-domain radiation characteristics of the large slotted-waveguide antenna arrays with radome are calculated and studied.
| Original language | English |
|---|---|
| Pages (from-to) | 749-754 |
| Number of pages | 6 |
| Journal | Dianbo Kexue Xuebao/Chinese Journal of Radio Science |
| Volume | 31 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Aug 2016 |
Keywords
- Domain decomposition algorithm (DDA)
- FE-BI-MLFMA
- Multi-domain
- Radome
- Slotted-waveguide antenna array