RADIATION SENSOR
Assignee
SECRETARY OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTY'S GOVERNMENT OF THE UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND, THE
Filed
Jul 23, 1991
Granted
Oct 27, 1998
Location
WORCS EN GB
Abstract
A radiation sensor for the microwave and millimeter-wave regions incorporates a lens having two parallel focal planes, these being defined by a polarization-selective reflector grid within the lens. One focal plane is occupied by a receive array of crossed dipole antennas with respective mixer diodes. One dipole of each antenna couples to a local oscillator signal and the other couples to a receive signal reflected by the grid. These signals are mixed by the diodes to produce intermediate frequency signals for subsequent processing. The other focal plane is occupied by a transmit array of separately activatable polarization switching antennas arranged to define a range of transmit beam directions. This focal plane may alternatively be occupied by a second receive array.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Feb 6, 1992
Rescinded
May 8, 1997
Duration
5 years, 3 months
Inventor
- 1CHRISTOPHER J. ALDER
Technology Domains
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Record Details
- Patent number
- US 5828344
- Application
- 07744781
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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