TRANSMITTING/RECEIVING DEVICE FOR RADAR

PURPOSE:To effectively cut off the unnecessary signals from an antenna while an automatic noise level control circuit is operated and improve the accuracy for setting the receiving system gain. CONSTITUTION:The title device consists of an active sending/receiving module 1, an RF(radio frequency) fro...

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Bibliographic Details
Main Authors AMAKASU YUKITO, ISHIKAWA MITSURU
Format Patent
LanguageEnglish
Published 16.09.1994
Edition5
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
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Summary:PURPOSE:To effectively cut off the unnecessary signals from an antenna while an automatic noise level control circuit is operated and improve the accuracy for setting the receiving system gain. CONSTITUTION:The title device consists of an active sending/receiving module 1, an RF(radio frequency) front end 2 for amplifying a an RF signal being a synthesized output of the active module and converting it into an IF (intermediate frequency) signal, an IF amplifier 3 for amplifying the output signal from the RF front end, an automatic noise level control circuit 4 for preventing the signal noise level from being varied because of the variation of the gain in the receiving system prepared after the amplifier 3, a switch 11 for turning ON/OFF the power supply for the receiving system amplifier within the module 1, and a switch 10 for turning ON/OFF the' receiving system within the module 1.
Bibliography:Application Number: JP19930042564