Measurement and Evaluation of Submillimeter-Wave Antenna Quasioptical Feed System by a Phase-Retrieval Method in the 640-GHz Band
| Autor: | Takeshi Manabe, Satoshi Ochiai, Toshiyuki Nishibori, Tomo Fukami, Kazuo Mizukoshi |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
phase retrieval
Beam waveguide antenna Cassegrain antenna Computer Networks and Communications business.industry Computer science Offset dish antenna Antenna measurement Astrophysics::Instrumentation and Methods for Astrophysics antenna feed system Near and far field submillimeter wave offset Cassegrain antenna Periscope antenna Radiation pattern antenna measurement Optics Antenna feed Electrical and Electronic Engineering Telecommunications business Software |
| Zdroj: | IEICE Transactions on Communications. :1760-1766 |
| ISSN: | 1745-1345 0916-8516 |
| Popis: | A phase-retrieval method is applied to the quasioptical feed system of the offset Cassegrain antenna of the Superconducting Submillimeter-Wave Limb-Emission Sounder (JEM/SMILES) to be aboard the International Space Station for evaluating the beam alignment by estimating the phase pattern from the beam amplitude pattern measurements. As the result, the application of the phase retrieval method is demonstrated to be effective for measuring and evaluating the quasioptical antenna feed system. It is also demonstrated that the far-field radiation pattern of the antenna main reflector can be estimated from the phase-retrieved beam pattern of the feed system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|