Transmitter arrangement and signal processing method
First Claim
1. A transmitter arrangement, comprising:
- a first and a second controlled oscillator, each comprising a control input and a signal output;
a first control device comprising a first data input, a first feedback input and a first control output which is coupled to the control input of the first controlled oscillator;
a second control device comprising a second data input, a second feedback input and a second control output which is coupled to the control input of the second controlled oscillator;
a first power amplifier comprising an input coupled to the signal output of the first controlled oscillator, an output coupled to the feedback input of the first control device and a first power control input to adjust a gain factor of the first power amplifier;
a second power amplifier comprising an input coupled to the signal output of the second controlled oscillator, an output coupled to the feedback input of the second control device and a second power control input to adjust a gain factor of the second power amplifier; and
a summation element which on its input side is coupled to the output of the first and the second power amplifier and which comprises an output coupled to a signal output of the transmitter arrangement;
wherein the first feedback input is selectively coupled to the output of the first power amplifier or to the signal output of the first controlled oscillator depending on a feedback control signal, and wherein the second feedback input is selectively coupled to the output of the second power amplifier or to the signal output of the second controlled oscillator depending on the feedback control signal.
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Abstract
A transmitter arrangement includes a first and a second phase-locked loop, each having a power amplifier. The first phase-locked loop generates a first amplified oscillator signal depending on a first input signal representing a first phase information, wherein a first feedback signal for the first phase-locked loop is derived from the first amplified oscillator signal. Accordingly, the second phase-locked loop generates a second amplified oscillator signal depending on a second input signal representing a second phase information. A second feedback signal for the second phase-locked loop is derived from the second amplified oscillator signal. The transmitter arrangement further includes a summation element to combine the amplified first oscillator signal and the amplified second oscillator signal to an output signal.
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Citations
30 Claims
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1. A transmitter arrangement, comprising:
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a first and a second controlled oscillator, each comprising a control input and a signal output; a first control device comprising a first data input, a first feedback input and a first control output which is coupled to the control input of the first controlled oscillator; a second control device comprising a second data input, a second feedback input and a second control output which is coupled to the control input of the second controlled oscillator; a first power amplifier comprising an input coupled to the signal output of the first controlled oscillator, an output coupled to the feedback input of the first control device and a first power control input to adjust a gain factor of the first power amplifier; a second power amplifier comprising an input coupled to the signal output of the second controlled oscillator, an output coupled to the feedback input of the second control device and a second power control input to adjust a gain factor of the second power amplifier; and a summation element which on its input side is coupled to the output of the first and the second power amplifier and which comprises an output coupled to a signal output of the transmitter arrangement; wherein the first feedback input is selectively coupled to the output of the first power amplifier or to the signal output of the first controlled oscillator depending on a feedback control signal, and wherein the second feedback input is selectively coupled to the output of the second power amplifier or to the signal output of the second controlled oscillator depending on the feedback control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A transmitter arrangement, comprising:
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a first controlled oscillator to generate a first oscillator signal depending on a first control signal; a second controlled oscillator to generate a second oscillator signal depending on a second control signal; a first power amplifier to amplify the first oscillator signal; a second power amplifier to amplify the second oscillator signal; a summation element to combine the amplified first oscillator signal and the amplified second oscillator signal to an output signal; a first control device to generate the first control signal as a function of a first input signal and a first feedback signal, wherein a first feedback path to provide the first feedback signal is coupled to an output of the first power amplifier; and a second control device to generate the second control signal as a function of a second input signal and a second feedback signal, wherein a second feedback path to provide the second feedback signal is coupled to an output of the second power amplifier; wherein the first feedback path is selectively coupled to the output of the first power amplifier or to a signal output of the first controlled oscillator depending on a feedback control signal. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A transmitter arrangement, comprising:
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a first phase locked loop comprising a first controlled oscillator to generate a first oscillator signal to be amplified and a first power amplifier, the first phase locked loop to generate a first amplified oscillator signal depending on a first input signal representing a first phase information, wherein a first feedback signal for the first phase locked loop is selectively derived from the first amplified oscillator signal or the first oscillator signal, depending on a feedback control signal; a second phase locked loop comprising a first controlled oscillator to generate a second oscillator signal to be amplified and a second power amplifier, the second phase locked loop to generate a second amplified oscillator signal depending on a second input signal representing a second phase information, wherein a second feedback signal for the second phase locked loop is selectively derived from the second amplified oscillator signal or the second oscillator signal, depending on the feedback control signal; a summation element to combine the amplified first oscillator signal and the amplified second oscillator signal to an output signal. - View Dependent Claims (17, 18, 19)
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20. A signal processing method, comprising:
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generating a first control signal as a function of a first feedback signal and a first input signal; generating a second control signal as a function of a second feedback signal and a second input signal; generating a first oscillator signal depending on the first control signal; generating a second oscillator signal depending on the second control signal; amplifying the first oscillator signal and the second oscillator signal; combining the amplified first oscillator signal and the amplified second oscillator signal to an output signal; selectively deriving the first feedback signal from the amplified first oscillator signal or the first oscillator signal depending on a feedback control signal; and deriving the second feedback signal from the amplified second oscillator signal. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A signal processing method, comprising:
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generating a first phase modulated signal as a function of a first feedback signal and a first input signal which represents a first phase information; generating a second phase modulated signal as a function of a second feedback signal and a second input signal which represents a second phase information; amplifying the first phase modulated signal depending on a first power control signal; amplifying the second phase modulated signal depending on a second power control signal; generating an output signal by summing up the amplified first phase modulated signal and the amplified second phase modulated signal; selectively deriving the first feedback signal from the amplified first phase modulated signal or the first phase modulated signal depending on a feedback control signal; and deriving the second feedback signal from the amplified second phase modulated signal. - View Dependent Claims (28, 29, 30)
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Specification