Variable phase shifter with reduced frequency-department phase deviations

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United States of America Patent

PATENT NO 6525627
APP PUB NO 20020153967A1
SERIAL NO

09540984

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Abstract

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A variable phase circuit for microwave and millimeter wave applications includes a distributed-constant transmission line, a number of phase shifters respectively responsive to control signals for introducing a desired amount of phase shift to and removing the introduced phase shift from the transmission line. In order to compensate for the frequency-dependent phase deviation of each phase shifter, one or more loading stubs are selectively connected to or disconnected from the transmission line according to operation of the phase shifters.

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Patent Owner(s)

Patent OwnerAddress
NEC CORPORATION7-1 SHIBA 5-CHOME MINATO-KU TOKYO 108-8001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakada, Kuniyoshi Tokyo, JP 4 17

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