Radiation sensor

Details Radiation sensor Radiation sensor

H - Electricity

01

Q

H01Q 23/00 (2006.01) H01Q 3/44 (2006.01) H01Q 15/22 (2006.01) H01Q 19/06 (2006.01)

Patent

CA 2166110

A radiation sensor (10) for the microwave and millimetre - wave regions incorporates a lens (12) having two parallel focal planes (26a, 36), these being defined by a polarization-selective reflecting PIN diode array (18) within the lens (12). One focal plane (26a) is occupied by a receive array of compressed dipole antennas which mixes receive signals and a local oscillator signal to produce intermediate polarization signals for subsequent processing. The second focal plane (36) is occupied by a transmit antenna array of separately activatable polarization switching antennas arranged to define a range of transmit beam directions. A second PIN diode array (20) protects the receive antenna array from the transmit beam.

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