Broadband high power amplifier

Details Broadband high power amplifier Broadband high power amplifier

2011-04-06

2011-12-13

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including distributed parameter-type coupling

C330S054000

Reexamination Certificate

active

08076975

ABSTRACT:
A broadband high power amplifier architecture is disclosed. One example configuration includes a first plurality of distributed amplification cells connected in a first string, wherein a conductive trace operatively coupling outputs of the first string cells is a stepped structure, such that the associated inductance successively decreases from a first cell to a last cell of the first string. The amplifier further includes a second plurality of distributed amplification cells connected in a second string, wherein a conductive trace operatively coupling outputs of the second string cells is a stepped structure, such that the associated inductance successively decreases from a first cell to a last cell of the second string. A combiner combines output signals of the first and second strings. Additional strings and/or stages can be provided, and the degree of combining will depend, for example, on factors such as the application and desired output power.

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