Ford Global Technolgoies, LLC

Ford Motor Company Limited

Yao Hsien Kuo

Robert Donald Plowdrey

Robert Carl Beier

A dual-band radio receiver utilizes a single transformer to provide impedance matching between signal mixers from separate signal paths to their respective intermediate frequency filters. Thus, a dual-band radio receiver can be made eliminating one transformer and the printed circuit board space of one transformer. In addition, only one transformer needs to be frequency aligned or adjusted during manufacturing.

Matching transformer for dual-band radio receiver

A phase-locked loop is provided for operating in either a steady-state mode or a transient mode. The steady-state mode obtains high rejection of noise disturbances to maintain lock of the phase-locked loop. The transient mode provides a near deadbeat response in order to quickly acquire a new phase-locked loop frequency when a new frequency command is received.

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Brentwood, United Kingdom

Yao Hsien Kuo