Frequency converter capable of preventing level of...

Details Frequency converter capable of preventing level of... Frequency converter capable of preventing level of...

2006-05-01

2009-11-17

Le, Lana N (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S323000, C455S333000, C455S234100, C455S571000, C455S258000, C455S313000

Reexamination Certificate

active

07620382

ABSTRACT:
There is provided a bias power supply for setting a collector bias current of a mixer transistor and a collector bias current of an oscillation transistor. When a control voltage is equal to or smaller than a first predetermined value, an output voltage of the bias power supply is set to be increased so that at least one of the collector bias current of the mixer transistor and the collector bias current of the oscillation transistor can be increased.

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