Amplifiers – With semiconductor amplifying device – Including field effect transistor
Patent
1993-10-25
1994-09-20
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including field effect transistor
330286, 330306, 330 54, H03F 316
Patent
active
053493060
ABSTRACT:
A distributed amplifier produced from monolithic microwave integrated circuit (MMIC) processes employs a bandpass filter structure as opposed to a low-pass filter network to enhance gain, efficiency and output power over wideband operation of 6 GHz to 18 GHz. Derivation of the preferred embodiment is shown from a three port circuit employing bandpass filter image-parameter half-sections.
REFERENCES:
patent: 4446445 (1984-05-01), Apel
patent: 4540954 (1985-09-01), Apel
patent: 4890077 (1989-12-01), Sun
patent: 4967169 (1990-10-01), Sun et al.
patent: 5021743 (1991-06-01), Chu et al.
Monolithic Circuits Symposium, Digest of Papers Jun. 1, 1983 The IEEE Microwave Theory and Techniques Society pp. 100-104.
Filters, image-parameter design, Radio Engineers, 4th Edition, Chapter 6, pp. 164-187, IT&T Corp. 1956.
Matthaei, Young and Jones, Microwave Filters, Impedance Matching Networks and Coupling Structures, Chapter 3, pp. 49-84, McGraw-Hill 1964.
Dudek Jim
Mullins James B.
Teledyne Monolithic Microwave
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