Distributed power amplifier

Details Distributed power amplifier Distributed power amplifier

1984-04-16

1985-09-24

Mullins, James B.

Amplifiers

With distributed parameter-type coupling means

330286, 330277, H03F 360

Patent

active

045435359

ABSTRACT:
A distributed power amplifier includes a plurality of field effect transistors (FETS), each one of such FETS having gate, drain and source electrodes, such FETS having cascaded gate electrodes and cascaded drain electrodes successively coupled between an input terminal and an output terminal. The gate electrode of each one of the successively coupled FETS is coupled to the input terminal through a corresponding one of a plurality of capacitors, and a common bias source through one of a corresponding plurality of high impedance bias paths. Since the gate electrodes of each FET are coupled to the input terminal through a capacitor, the coupling capacitor in combination with the inherent capacitance of each FET provides a potential divider into each gate electrode. Therefore, the power fed to each gate electrode is selected by selecting the value of capacitance for the coupling capacitors. In an alternate embodiment, a pair of sets of such capacitively coupled FETS is provided with the drain electrodes of each set of such FETS being coupled to a common output r.f. transmission line.

REFERENCES:
patent: 3097343 (1963-07-01), Sosin et al.
patent: 4291286 (1981-09-01), Wagner
patent: 4311966 (1984-01-01), Bert et al.
"Archive for Electronics and Communications" by Uwe Christ, vol. 27, (1973), pp. 448-450.
"Microstrips on Semiconductor Materials" by Heinz Storck, Jul. 2, 1971.
"Power MOS FET Amplifier with Subnanosecond Response Time" by V. P. D'Yakonov & V. Yu. Smerdov.
Instrum. & Exp. Tech. (USA), vol. 23, No. 3, Pt. 2, (May-Jun. 1980), (Publ. Dec. 1980).
"0-5 W 2-21 GHz Monolithic GaAs Distributed Amplifier by B. Kim and H. Q. Tserng.
Electronics Letters, 3/29/1984, vol. 20, No. 7.
"A Traveling-Wave Transistor" by George W. McIver, Proceedings of the IEEE, Nov. 1965, pp. 1747-1748.

Affiliated with

Also associated with

Rating

Distributed power amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Distributed power amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distributed power amplifier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1616258