Abstract: An NPF radiofrequency device includes a first end terminal E1, four first branches BR10, BR11, BR12, BR13 connected to E1 and each including a capacitor, respectively C0, C1, C2, C3, having the same capacitance, including a first terminal and a second terminal connected to ground, and a switch arranged between E1 and the first terminal of the capacitor of the first branch; the device being designed to, in each first branch BR1i, close the switch at each time pT0+(i)T0/4, for T0/4, where p is a natural number and T0 is the period of the clock signal; the device including at least two successive second branches from among an ordered set of second branches BR20, BR21, BR22, BR23, the second branch BR2i including a second end terminal E2i, and each second branch BR2k of the device including, for each first branch, BR11, i=0 to 3, a switch between the first terminal of the capacitor Ci and the second branch, the device being designed to close the switch at each pT0+(i+k)T0/4, for T0/4.

Abstract: The disclosure relates to a method for generating UWB waveforms, each comprising a sequence of pulses, the method comprising: generating consecutive elementary pulses having durations corresponding to setpoint durations and a constant amplitude, amplifying each elementary pulse separately as a function of a respective setpoint amplitude, and combining the amplified elementary pulses to obtain a waveform successively comprising each of the amplified alternately positive and negative, elementary pulses.

Abstract: The disclosure relates to a method for generating UWB waveforms, each comprising a sequence of pulses, the method comprising: generating consecutive elementary pulses having durations corresponding to setpoint durations and a constant amplitude, amplifying each elementary pulse separately as a function of a respective setpoint amplitude, and combining the amplified elementary pulses to obtain a waveform successively comprising each of the amplified alternately positive and negative, elementary pulses.

Abstract: There is provided a detector for extracting binary data frequency-modulated on a carrier signal. An axes generator produces M pairs of logic signals, the logic signals of the same pair being in quadrature. The decoder includes M asynchronous logic zero-crossing detectors producing first pulses and second pulses. An up-counter/down-counter has first, second and third values, and when it has the second value, passing to the first value during a first pulse, and passing to the third value during a second pulse, and a binary decoder generates binary data whose state is not modified when the up-counter/down-counter passes from the first value to the second value or from the third value to the second value. No external time base is required and the decoder has a reduced bit error ratio.

Abstract: There is provided a detector for extracting binary data frequency-modulated on a carrier signal. An axes generator produces M pairs of logic signals, the logic signals of the same pair being in quadrature. The decoder includes M asynchronous logic zero-crossing detectors producing first pulses and second pulses. An up-counter/down-counter has first, second and third values, and when it has the second value, passing to the first value during a first pulse, and passing to the third value during a second pulse, and a binary decoder generates binary data whose state is not modified when the up-counter/down-counter passes from the first value to the second value or from the third value to the second value. No external time base is required and the decoder has a reduced bit error ratio.