Subspace-Based Inverse Source Approach for Metasurface Synthesis
- Resource Type
- Conference
- Authors
- Zhuang, Lu; Ouyang, Jun
- Source
- 2023 16th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies (UCMMT) Millimetre Waves and Terahertz Technologies (UCMMT), 2023 16th UK-Europe-China Workshop on. 1:1-3 Aug, 2023
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Fields, Waves and Electromagnetics
Robotics and Control Systems
Signal Processing and Analysis
Shape
Conferences
Scattering
Terahertz materials
Metasurfaces
Matrix decomposition
Singular value decomposition
Inverse source design
metasurface synthesis
scattered fields synthesis
- Language
- ISSN
- 2639-4537
A subspace-based inverse source method is proposed for metasurface synthesis in this paper. More specifically, for the scenario that we hope the scattered fields of the metasurface are distributed in an arbitrary specified fields coverage region (FCR), the matrix G which establishes the mapping relationship between the equivalent sources and the fields in FCR is applied the truncated singular value decomposition operation so that the current sources can be divided into radiative and non-radiative currents. With the constraints of realizability, the scattered fields can be concentrated in the FCR by decreasing the proportion of non-radiative currents. A synthesis case is presented to demonstrate the details and validate the proposed method.