Importance

Loading Importance Indicators...

Abstract

There is provided a frequency down converter group including frequency down converters corresponding to a plurality of input terminals, and IV converters being paired therewith; and a voltage-controlled oscillating circuit group including voltage-controlled oscillating circuits corresponding to a plurality of frequency bands, and VI converters being paired therewith. The IV converters and VI converters are electrically connected to a common current signal node. The demodulator is capable of generating a local signal having a desired frequency and converting an RF modulated signal into a signal having a frequency of a baseband signal by use of a smaller number of voltage-controlled oscillating circuits, by changing combination of the pair of the operating frequency down converter and the IV converter and the pair of the voltage-controlled oscillating circuit and the VI converter depending on the frequency bands.

Loading the Abstract Image...

First Claim