Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Junction field effect transistor
Patent
1991-07-19
1992-11-03
Larkins, William D.
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Junction field effect transistor
257280, 257287, H01L 29812
Patent
active
051609843
ABSTRACT:
In an amplifying feedback-type FET semiconductor element for use as a wide-band microwave amplifier in telecommunications system such as a radar, a monolithic IC feedback circuit is located between at least two parallel FET cells of an FET semiconductor element and also between gate and drain lead electrodes of the FET semiconductor element. The feedback circuit includes at least two connecting lines and at least one passive element and is connected to the two lead electrodes. With this arrangement, it is possible to reduce the total length of said connecting lines to a minimum, thus guaranteeing a frequency characteristic showing a flat gain over a wide band.
REFERENCES:
patent: 4760350 (1988-07-01), Ayasli
patent: 4786881 (1988-11-01), Eron et al.
Edwards, Foundation for Microstrip Circuit Design, pp. 17-29, 34-47, 51-65, 80-95, .COPYRGT.1981.
Compton, Solid State Microwave Devices and Circuit II, pp. 36-49, .COPYRGT.Jan. 1989.
Ramo et al., Fields & Waves in Communication Electronics, pp. 407-411, .COPYRGT.1984.
Pengelly, Microwave Field-Effect Transistors-Theory, Design and Application, copyright 1982, pp. 78-79.
Mochizuki Mitsuru
Takagi Tadashi
Urasaki Shuji
Larkins William D.
Mitsubishi Denki & Kabushiki Kaisha
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