公开(公告)号：JPH09181570A

公开(公告)日：1997-07-11

申请号：JP21554496

申请日：1996-08-15

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： INDOUTSUKU UWAN

IPC: H01P5/12 ,  H03H11/22 ,  H03H11/36

Abstract: PROBLEM TO BE SOLVED: To easily realize a monolithic microwave chip by providing the active orthogonal power distributor with an input impedance matching circuit, an FET to be turned on/off in accordance with the state of an output signal from the input impedance matching circuit, an output impedance matching circuit for outputting the output signal, and a reactive potential divider. SOLUTION: The output impedance matching circuit is a pi section type consisting of an inducator L3 and capacitors C2, C3 to an output terminal 1. The inductor L3 acts in parallel with an output terminal 2, an inductor L2 acts in series and the capacitors C2, C3 mutually connected in series act in parallel. A direct current(DC) is supplied from a power supply Vdd to an FET Q1 through the inductors L3, L2, a capacitor C5 is a by-pass capacitor and the inductor L3 is grounded like AC. Although the distributor has the same structure as a microwave amplifier, the distributor is also provided with two output terminal and the 90 deg. phase difference of output signals as compared with a conventional distributer.