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DELAY CIRCUIT FOR TIME OFFSETTING A RADIOFREQUENCY SIGNAL AND INTERFERENCE REDUCING DEVICE USING SAID CIRCUIT
DELAY CIRCUIT FOR TIME OFFSETTING A RADIOFREQUENCY SIGNAL AND INTERFERENCE REDUCING DEVICE USING SAID CIRCUIT
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机译:延时电路,用于通过射频信号在时间上偏移射频信号和减少干扰的设备
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摘要
A delay circuit for time offsetting an input radiofrequency signal, includes an all-pass filter having a given central frequency to linearize a phase-shift of an output signal relative to the input signal as a function of the frequency on a first frequency range; and first and second antiresonant circuits having respectively first and second central frequencies, the all-pass filter and the antiresonant circuits configured to linearize the phase-shift of the output signal relative to the input signal as a function of the frequency on a second frequency range including the first range. The difference between first and second central frequencies is less than 30% of the value of one of both frequencies, the difference between the first central frequency and the given central frequency of the all-pass filter is less than 30% of the value of a highest frequency between the first central frequency and the given central frequency.
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