Ultra-broadband integrated balun
AssigneeInternational Business Machines Corporation
InventorsBrian Floyd, Thomas Zwick
Life of this patent
Estimating the term…
Abstract
An ultra-broadband balun is provided. The balun comprises: a first unbalanced transmission line comprising a first ground trace and a signal trace; and a balanced transmission line comprising a first and second signal trace, wherein the first signal trace of the balanced transmission line is connected to the first ground trace of the first unbalanced transmission line and the second signal trace of the balanced transmission line is connected to the signal trace of the first unbalanced transmission line, wherein a first capacitor is disposed in series with one of the first ground trace of the first unbalanced transmission line and the first signal trace of the balanced transmission line.
Claims32
A balun, comprising:
- a first unbalanced transmission line comprising a first ground trace and a signal trace;
- and
- a balanced transmission line comprising a first and second signal trace, wherein the first signal trace of the balanced transmission line is connected to the first ground trace of the first unbalanced transmission line and the second signal trace of the balanced transmission line is connected to the signal trace of the first unbalanced transmission line,
- wherein a first capacitor is disposed in series with one of the first ground trace of the first unbalanced transmission line and the first signal trace of the balanced transmission line.
An ultra-broadband balun circuit, comprising:
- a first unbalanced transmission line comprising a first ground trace and a signal trace;
- a balanced transmission line comprising a first and second signal trace, wherein the first signal trace of the balanced transmission line is connected to the first ground trace of the first unbalanced transmission line and the second signal trace of the balanced transmission line is connected to the signal trace of the first unbalanced transmission line,
- wherein a first capacitor is disposed in series with one of the first ground trace of the first unbalanced transmission line and the first signal trace of the balanced transmission line;
- a second unbalanced transmission line comprising a ground trace and a signal trace, wherein the signal trace of the second unbalanced transmission line is connected to the first signal trace of the balanced transmission line;
- and
- a third unbalanced transmission line comprising a ground trace and a signal trace, wherein the signal trace of the third unbalanced transmission line is connected to the second signal trace of the balanced transmission line.
An ultra-broadband balun circuit, comprising:
- a first unbalanced transmission line comprising a first ground trace and a signal trace;
- and
- a balanced transmission line comprising a first and second signal trace, wherein a first capacitor is disposed in series with the first signal trace and a second capacitor is disposed in series with the second signal trace and a first bias stub is connected to the first signal trace and a second bias stub is connected to the second signal trace, wherein the first signal trace is connected to the first ground trace of the first unbalanced transmission line and the second signal trace is connected to the signal trace of the first unbalanced transmission line.
Dependencies are inferred from the claim text.