Amplifiers – With semiconductor amplifying device – Including distributed parameter-type coupling
Patent
1995-06-22
1996-08-27
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including distributed parameter-type coupling
330 54, H03F 360
Patent
active
055505139
ABSTRACT:
A fully differential distributed amplifier for providing a high frequency, high power output. The inherent base-collector capacitance of the output power transistors of each distributed amplifier is matched with on-chip inductances to create artificial transmission lines for both the input and output paths. The distributed amplifier circuit may be used as a driver for a Mach-Zehnder optical modulator. In this application an output of 3 V peak-to-peak per modulator arm is delivered at 10 Gb/s.
REFERENCES:
patent: 3661443 (1972-05-01), Harris et al.
patent: 4486719 (1984-12-01), Ayasli
patent: 4540954 (1985-09-01), Apel
patent: 4595881 (1986-06-01), Kennan
patent: 5365197 (1994-11-01), Ikalainen
"A Low Noise Distributed Amplifier With Gain Control", Hutchison et al., IEEE MIT-S Digest, 1987, pp. 165-168.
"2-20 GHz GaAs Traveling-Wave Power Amplifier", Ayasli et al., IEEE Transactions on Microwave Theory and Techniques, vol. MTT-32, No. 3, Mar. 1984, pp. 290-295.
"A DC-12 GHz Monolithic GaAsFET Distributed Amplifier", IEEE Transactions on Microwave Theory and Techniques, vol. MTT-30, No. 7, Jul. 1982, pp. 969-975.
MacGregor George
Mottola Steven
Northern Telecom Limited
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