JPH02116148U

JPH02116148U -

Info

Publication number: JPH02116148U
Application number: JP1989024002U
Authority: JP
Priority date: 1989-03-02
Filing date: 1989-03-02
Publication date: 1990-09-18

Description

[Brief explanation of drawings]

第１図はこの考案によるパルスドＲＦジエネレ
ータの構成図、第２図、第３図はその動作を示す
タイミングチヤート、第４図は従前のパルスドＲ
Ｆジエネレータの構成図、第５図はその動作を示
すタイミングチヤートである。図中１はパルス繰
返し周波数発振器、２は波形整形回路、３はＲＦ
信号周波数発振器、４は増幅器、５はＲＦ信号変
調器、６は分割回路、７は遅延回路、８はアツテ
ネータ、９は移相器、１０は位相検出器、１１は
マジツクＴ、１２は合波回路、１３は出力段アツ
テネータ、１４はゲートアンプ、１５はＮｕ１１
デイテクタ、１６はアツテネータドライバ、１７
はパルス発生回路、１８はパルス幅設定回路であ
る。なお図中、同一符号は同一又は相当部分を示
す。 Figure 1 is a block diagram of the pulsed RF generator according to this invention, Figures 2 and 3 are timing charts showing its operation, and Figure 4 is the conventional pulsed RF generator.
FIG. 5 is a block diagram of the F generator and a timing chart showing its operation. In the figure, 1 is a pulse repetition frequency oscillator, 2 is a waveform shaping circuit, and 3 is an RF
Signal frequency oscillator, 4 is an amplifier, 5 is an RF signal modulator, 6 is a division circuit, 7 is a delay circuit, 8 is an attenuator, 9 is a phase shifter, 10 is a phase detector, 11 is a magic T, 12 is a multiplexer circuit, 13 is an output stage attenuator, 14 is a gate amplifier, 15 is Nu11
Detector, 16 is an attenuator driver, 17
1 is a pulse generation circuit, and 18 is a pulse width setting circuit. In the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

An RF signal frequency oscillator that generates an RF signal, a modulation means that modulates the RF signal into a rectangular wave, a dividing circuit that divides the modulated signal into two, a delay circuit that delays one of the divided signals, and this delay. The output of the circuit is divided into in-phase signal output and anti-phase signal output.
A magic T to be divided, a phase shifter for rotating the RF phase of the other output signal of the dividing circuit, an attenuator for attenuating the signal level, and an in-phase signal output of the magic T and an output of the phase shifter. a phase detector for phase comparison; a multiplexing circuit for combining the negative phase output of the magic T with the output signal of the attenuator; and a multiplexing circuit for amplifying and detecting a part of the output signal of the multiplexing circuit to drive the attenuator. A pulsed RF generator comprising attenuator control means.