Single ended tuning of a differential power amplifier output

Details Single ended tuning of a differential power amplifier output Single ended tuning of a differential power amplifier output

2005-01-18

2005-01-18

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Coupling networks

Nonreciprocal gyromagnetic type

C333S026000, C333S035000

Reexamination Certificate

active

06844792

ABSTRACT:
A system and method for compensating a parasitic capacitance on a differential amplifier output includes a first differential output and a second differential output of the differential amplifier. The first differential output coupled to the second differential output by a first conductor that has a length of about one half wavelength. The first and the second differential outputs have a parasitic capacitance that can be measured. A second conductor is coupled to the first differential output. The second conductor having a length that is less than or equal to about one quarter wavelength and has an inductive reactance that offsets a capacitive reactance of the parasitic capacitance.

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Choonsik Cho, “A New Design Procedure for Single-Layer and Two-Layer Three-Line Baluns”, IEEE Transactions On Microwave Theory And Techniques, vol. 46, No. 12, Dec. 1998.

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