Microwave device

Details Microwave device Microwave device

1991-05-22

1992-09-08

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Integrated circuits

455325, 455327, H04B 126

Patent

active

051461820

ABSTRACT:
There is disclosed a microwave device having a substrate made of a dielectric material and a frequency conversion circuit formed on a front surface of the substrate and including a microstrip line for input and output and a radio frequency amplifier. The substrate is partially thinned in a portion of a rear surface thereof which faces the radio frequency amplifier. The microstrip line width is a change in the characteristic impedance of microstrip lines which cross the front surface of the substrate where its thickness changes due to the partially thinned portion, is smaller than 10%.

REFERENCES:
patent: 3679985 (1972-07-01), Fang et al.
patent: 4233530 (1980-11-01), Mikoshiba et al.
patent: 4691376 (1987-09-01), Watanabe et al.
patent: 4996718 (1991-02-01), Shiomi
patent: 5028879 (1991-07-01), Kim

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