Device for ultra wide band frequency generating
First Claim
1. 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.
1 Assignment
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Accused Products
Abstract
Devices (1) for exchanging ultra wide band signals comprise frequency translating stages (20,30) for frequency translating signals and oscillating stages (40) for supplying main inphase/quadrature oscillation signals to the frequency translating stages (20,30). By providing the oscillating stages (40) with polyphase filters (43,44) for reducing harmonics in oscillation signals, the main oscillation signals will be sufficiently clean. The oscillating stages (40) comprise mixers (46) for converting first inphase/quadrature oscillation signals and second inphase/quadrature oscillation signals into the main oscillation signals. The polyphase filters (43,44) may be located before and after the mixers (46). Frequency selectors (45) replace prior art multiplexers located after the mixers (46). Such frequency selectors (45) comprise multiplexers (126,127) for supplying the second inphase/quadrature oscillation signals, with a combination of these second oscillation signals corresponding with a positive frequency, a negative frequency or a zero frequency, and comprise coders (125) for controlling the multiplexers (126,127).
14 Citations
23 Claims
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1. Device (1) comprising:
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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); andat 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Oscillating stage (40) for supplying a main inphase oscillation signal and a main quadrature oscillation signal to 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, which oscillating stage (40) comprises:
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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) for 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); andat 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.
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12. Frequency selector (45) comprising:
- a multiplexer (126,127) for supplying oscillation signals, a combination of these oscillation signals corresponding with a positive frequency, a negative frequency or a zero frequency;
a coder (125) for controlling the multiplexer (126,127); and
an output to be coupled to an input of a mixer (46) for converting a first inphase oscillation signal and a first quadrature oscillation signal and a second inphase oscillation signal and a second quadrature oscillation signal into a main inphase oscillation signal and a main quadrature oscillation signal of an oscillating stage (40) for supplying the main oscillation signals to 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, which oscillating stage (40) comprises at least one polyphase filter (43,44) for reducing at least one harmonic in at least one oscillation signal.
- a multiplexer (126,127) for supplying oscillation signals, a combination of these oscillation signals corresponding with a positive frequency, a negative frequency or a zero frequency;
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13. System comprising at least two devices (1), which devices (1) each comprise:
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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, which oscillating stage (40) comprises at least one polyphase filter (43,44) for reducing at least one harmonic in at least one oscillation signal, 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); andat 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. - View Dependent Claims (14)
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15. Method for use in a device (1), which method comprises the steps of:
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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; supplying a first inphase oscillation signal and a first quadrature oscillation signal; supplying a second inphase oscillation signal and a second quadrature oscillation signal; converting the first inphase oscillation signal, the first quadrature oscillation signal into a main inphase oscillation signal for said frequency translating, converting the second inphase oscillation signal and the second quadrature oscillation signal into a main quadrature signal for said frequency translating, and polyphase filtering at least on said first inphase oscillations signal, first quadrature oscillation signal, second inphase oscillation signal and said quadrature oscillation signal;
for reducing at least one harmonic in at least one oscillation signal.
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16. 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 at least one polyphase filter (43,44) for reducing at least one harmonic in at least one oscillation signal, which oscillating stage (40) further comprises a mixer (46) for converting a first inphase oscillation signal and a first quadrature oscillation signal and a second inphase oscillation signal and a second quadrature oscillation signal into the main oscillation signals, wherein an input of the polyphase filter (44) is coupled to an output of the mixer (46); and
wherein an output of the polyphase filter (43) is coupled to an input of the mixer (46). - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
- 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
Specification