Microwave integrated circuit device having impedance matching

Details Microwave integrated circuit device having impedance matching Microwave integrated circuit device having impedance matching

1991-09-24

1993-04-13

Gensler, Paul

Wave transmission lines and networks

Coupling networks

With impedance matching

330277, 330305, H01P 508

Patent

active

052026493

ABSTRACT:
A microwave integrated circuit includes a matching circuits. The microwave integrated circuit includes a main transmission line having a strip line and a shorted stub or an open stub, all of which are arranged on a semiconductor substrate. A phase control circuit connected in parallel with the main transmission line controls the passing phase of the main transmission line. Therefore, the electrical length of the main line can be changed and the passing phase through the main line can be controlled for adjusting impedance matching in accordance with changes in the impedance of the element to be matched, resulting in precise impedance matching at a desired frequency.

REFERENCES:
patent: 3546636 (1970-12-01), Di Piazza
patent: 5065117 (1991-11-01), Yoshimasu
Kashiwa et al., "X-Band Variable Frequency MMIC Amplifier", 1990 Autumn National Convention Record, The Institute of Electronics, Information and Communication Engineers, Hiroshima Institute of Technology, Oct. 1-4, 1990.

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