Semi-aperture technique (SAT) for receive array antennas
| Autor: | Guo Yanchang, Jiang Wei, Yang Qihe |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
business.industry
Reflective array antenna Antenna aperture Antenna measurement Astrophysics::Instrumentation and Methods for Astrophysics Antenna factor Radiation pattern law.invention Beamwidth Optics law Physics::Accelerator Physics Dipole antenna business Omnidirectional antenna Computer Science::Information Theory Mathematics |
| Zdroj: | IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36194). |
| Popis: | Traditionally, the aperture distribution of the sum pattern for the receive array antenna is symmetrical and the aperture distribution of the difference pattern anti-symmetrical. It is proposed that if the semi-aperture technique (SAT) is used in the receive array antenna, the sum pattern and difference pattern of the original full aperture distribution can be obtained from the inphase and quadrature channels of the output of the array. Therefore, using SAT, the same beamwidth as that of the original full aperture distribution can be obtained. It means that the receive aperture is decreased to half the original one and the desired original beamwidth is still achieved. |
| Databáze: | OpenAIRE |
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