Improved Generalized Single-Source Tangential Equivalence Principle Algorithm with Contact-Region Modeling Method for Array Structures
- Resource Type
- article
- Authors
- Yao Han; Hanru Shao; Jianfeng Dong
- Source
- International Journal of Antennas and Propagation, Vol 2018 (2018)
- Subject
- Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Cellular telephone services industry. Wireless telephone industry
HE9713-9715
- Language
- English
- ISSN
- 1687-5869
1687-5877
An improved generalized single-source tangential equivalence principle algorithm (GSST-EPA) is proposed for analyzing array structures with connected elements. In order to use the advantages of GSST-EPA, the connected array elements are decomposed and computed by a contact-region modeling (CRM) method, which makes that each element has the same meshes. The unknowns of elements can be transferred onto the equivalence surfaces by GSST-EPA. The scattering matrix in GSST-EPA needs to be solved and stored only once due to the same meshes for each element. The shift invariant of translation matrices is also used to reduce the computation of near-field interaction. Furthermore, the multilevel fast multipole algorithm (MLFMA) is used to accelerate the matrix-vector multiplication in the GSST-EPA. Numerical results are shown to demonstrate the accuracy and efficiency of the proposed method.