JPS59121929U - phase synthesis circuit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a conventional 6-phase synthesis circuit, and Fig. 2 is a diagram showing the configuration of a phase synthesis circuit according to this invention.
is a signal input terminal, 2 is a phase divider, 3 is a coupling resistor, 4
a, 4b are amplifiers, 5 is a phase synthesis output selector switch,
6 is a signal output terminal, 7a to 7d are variable amplifiers for coupling,
8 is a control circuit for the variable amplifier. In the drawings, the same or corresponding parts are designated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] A phase divider that divides the input signal into four signals with mutually different phases and outputs the signals; and a phase divider that is provided corresponding to each of the four signals distributed by the phase divider, and amplifies each signal by changing the amplification degree. A phase synthesis circuit comprising: a plurality of variable amplifiers using dual gate FETs; and a control circuit that controls the amplification degree of the plurality of variable amplifiers to vary the phase of an output signal with respect to an input signal.