Amplifiers – With semiconductor amplifying device – Including field effect transistor
Patent
1995-08-04
1996-10-08
Gensler, Paul
Amplifiers
With semiconductor amplifying device
Including field effect transistor
330286, 333 33, H03F 360, H01P 502
Patent
active
055635512
ABSTRACT:
An impedance matching circuit employed at a high frequency includes a coupling line having a length longer than 1/4 of a wavelength at a design center frequency. Therefore, the impedance can be inductive and it is possible to impedance match a circuit comprising a transistor and having a capacitive impedance. The impedance matching circuit according to the present invention functions both as a dc blocking capacitor and an impedance matching circuit. Therefore, the degree of freedom in the circuit design is increased and the circuit can be reduced in size.
REFERENCES:
patent: 3965445 (1976-06-01), Ou
patent: 4275364 (1981-06-01), Skatvold, Jr.
patent: 4390851 (1983-06-01), Higgins et al.
patent: 4623848 (1986-11-01), Saka et al.
patent: 5111165 (1992-05-01), Oldfield
patent: 5187459 (1993-02-01), Russel et al.
Wang et al, "High-Performance W-Band Monolithic Pseudomorphic InGaAs HEMT LNA's And Design/Analysis Methodology", IEEE Transactions on Microwave Theory and Techniques, vol. 40, Number 3, Mar. 1992, pp. 417-427.
Gensler Paul
Mitsubishi Denki & Kabushiki Kaisha
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