Patent ID: 6724804
Filing Date: 2004-04-20
Classification: H04B

Abstract:
A radio frequency converter for converting a signal in a first frequency band to a signal in a second frequency band by successively mixing the signal in the first frequency band with a plurality of local-oscillation signals having different frequencies, the frequency converter comprising an LC oscillator for providing a first one of the local-oscillation signals in a quasi millimeter bandwidth or a millimeter bandwidth; and a phase-locked loop,wherein the phase-locked loop generates at least a second one of the local-oscillation signals having a lowest frequency among the plurality of local-oscillation signals, based on an intermediate frequency beacon signal, which is generated by mixing a predetermined radio frequency beacon signal generated from the signal in a first frequency band with the first local-oscillation signals and wherein the first frequency band and the second frequency band fall in a quasi millimeter bandwidth or a millimeter bandwidth.