SU1478282A1 - Radio pulse generator - Google Patents

Abstract

The invention relates to radio engineering. The purpose of the invention is to reduce the nonlinearity of distortion during the formation of radio pulses with an exponential envelope. Hr contains coils 1-4 inductors, thyristors 5-8, capacitors 9 and 11, separation 10 and storage 13 capacitors, choke 12, load oscillating circuit 14, constant voltage source 15, control switch 16, resistor 17 and shaper 18 control signals. In Gd, four half-waves of sinusoidal voltage are formed. The distortions of the shape of the radio pulses that can be caused by leakage currents inside the capacitor 13 are compensated for by the current flowing from the source 15 by the resistor 17. Switching on the capacitor 11 parallel to the choke 12 allows the second half-wave to be formed in a form that is close to cosine, i.e. the same as the first half-wave, in reverse polarity. The quality factor of the circuit formed by the choke 12 and the capacitor 11 is chosen equal to the quality factor of the circuit formed by the coils 1 and 4 and the capacitor 9. This leads to a decrease in the sinusoidal signal of the higher harmonic components due to the reduction of transients. 2 Il.

Description

b 6

I

I

eight

F

to tot- &

FIG. g

Claims (1)

[Claim A radio pulse generator comprising in series a first inductance coil, a first thyristor, a second thyristor and a second inductor, a third inductance in series, a third thyristor, a fourth thyristor and a fourth inductor, a choke in series, an isolation capacitor and a load oscillating circuit, as well as a capacitor, a storage capacitor, a constant voltage source and a driver of control signals, the point being connected a choke with a separation capacitor is connected to the second terminal of the first inductor and to the second terminal of the third inductor, and the second terminal of the second inductor and second terminal of the fourth inductor are connected to the second terminal of the load oscillating circuit, the connection point of the first and second thyristors is connected to the first the output of the capacitor, and the control input of each of the thyristors is connected to the corresponding outputs of the driver of the control signals, characterized in that, in order to to reduce non-linear distortions during the formation of radio pulses with an exponential envelope, an additional capacitor is introduced into it, which is connected parallel to the inductor, a controlled key whose input is connected to the output of the DC voltage source, the output to the second output of the inductor, and the control input to the additional output of the signal conditioner control, and a resistor that is connected between the input and output of the controlled key, while the storage capacitor is connected between the second output of the inductor and the common bus, W swarm capacitor terminal connected to a junction point between the third and fourth thyristor, and the second terminal of the load oscillating circuit is connected to the common bus.