Wide field of view heterodyne receiver
US7561813B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 2005 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Nov 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J9/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wide field of view heterodyne receiver is provided for enhancing mixing efficiency of a returned signal with a local oscillator signal to generate a heterodyned signal. The returned signal defines a first wave front, and the local oscillator signal defines a second wave front. The receiver includes an optics system, a local oscillator, and a focal plane array. The optics system is operative to transmit the returned signal along an optical path and to focus the returned signal onto a focal plane. The local oscillator is operative to provide the local oscillator signal being directable toward the focal plane. The focal plane array is disposed coincident with the focal plane and is operative to receive the focused returned signal and the local oscillator signal. Upon reaching the focal plane array, the first wave front and the second wave front are planar and oriented substantially parallel relative each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.