Patent ID: 7567131

Claim:
Device ( 1 ) comprising: a frequency translating stage ( 20 , 30 ) for frequency translating a first signal into a second signal, at least one of the first signal and the second signal being an ultra wide band signal; and an oscillating stage ( 40 ) for supplying a main inphase oscillation signal and a main quadrature oscillation signal to the frequency translating stage ( 20 , 30 ), which oscillating stage ( 40 ) comprises: a first phase-locked loop ( 41 ), coupled to a reference source ( 47 ), for supplying a first inphase oscillation signal and a first quadrature oscillation signal; a second inphase-locked loop ( 42 ), coupled to said reference source ( 47 ), for supplying a second inphase oscillation signal and a second quadrature oscillation signal; a mixer ( 46 ) converting the first inphase oscillation signal and the first quadrature oscillation signal and the second inphase oscillation signal and the second quadrature oscillation signal into the main inphase oscillation signal and the main quadrature oscillation signal; a frequency selector ( 45 ), coupled to an input of the mixer ( 46 ), the frequency selector ( 45 ) comprising: a multiplexer ( 126 , 127 ) for supplying the second inphase oscillation signal and the second quadrature oscillation signal to the mixer ( 46 ); and at least one polyphase filter ( 43 , 44 ) for reducing at least one harmonic in at least one of said first inphase oscillation signal, first quadrature oscillation signal, second inphase oscillation signal and second quadrature oscillation signal.