JPH02123114U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of a parallel feedback high frequency amplifier according to this invention, Fig. 2 is a spiral inductor length/gain frequency characteristic diagram, and Fig. 3 is a block diagram showing a conventional parallel feedback high frequency amplifier. It is. In FIG. 1 and FIG. 3, 1 is an FET,
1a is a gate terminal, 1b is a drain terminal, 2 is a signal input terminal, 5 is a signal output terminal, 11 is a resistor, 1
2 is a capacitor, and 13 is a spiral inductor. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] a field effect transistor; a first microstrip line having one end connected to the gate terminal of the field effect transistor and the other end forming a signal input terminal; and one end connected to the drain terminal of the field effect transistor; a second microstrip line whose other end constitutes a signal output terminal; a resistor connected to the gate terminal of the field effect transistor; and a second microstrip line connected to the other end of the resistor connected to the gate terminal of the field effect transistor. , a parallel feedback high frequency amplifier comprising a capacitor whose other end is connected to the drain terminal of the field effect transistor, characterized in that a spiral inductor is connected in series between the resistor and the capacitor. Feedback type high frequency amplifier.