Active balun with stacked structure

Details Active balun with stacked structure Active balun with stacked structure

2009-12-23

2011-10-04

Nguyen, Hieu (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including balanced to unbalanced circuits and vice versa

Reexamination Certificate

active

08031004

ABSTRACT:
An active balun with a stacked structure includes: a first amplification unit including a first transistor having a first terminal connected with a first input terminal, a second terminal connected with a power voltage terminal, and a third terminal connected with an output terminal; a second amplification unit including a second transistor having a first terminal connected with a second input terminal, a second terminal connected with the output terminal, and a third terminal connected with a ground; and a capacitance matching unit connected between the first terminal and the third terminal of the first transistor and having a pre-set matching capacitance.

REFERENCES:
patent: 4897615 (1990-01-01), Chen et al.
patent: 5867061 (1999-02-01), Rabjohn et al.
patent: 6133793 (2000-10-01), Lau et al.
patent: 7193475 (2007-03-01), Su et al.

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