Amplifiers – With semiconductor amplifying device – Integrated circuits
Reexamination Certificate
2006-10-24
2006-10-24
Nguyen, Khanh Van (Department: 2817)
Amplifiers
With semiconductor amplifying device
Integrated circuits
C330S311000
Reexamination Certificate
active
07126426
ABSTRACT:
A multi-stage amplifier circuit arranged to take advantage of the desirable characteristics of non-field-plate and field plate transistors when amplifying a signal. One embodiment of a multi-stage amplifier according to the present invention comprises a non-field-plate transistor and a field-plate transistor. The field-plate transistor has at least one field plate arranged to reduce the electric field strength within the field plate transistor during operation. The non-field plate transistor is connected to the field plate transistor, with the non-field-plate providing current gain and the field plate transistor providing voltage gain. In one embodiment the non-field-plate and field plate transistors are coupled together in a cascode arrangement.
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Mishra Umesh
Parikh Primit
Wu Yifeng
Cree Inc.
Koppel Patrick & Heybl
Nguyen Khanh Van
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