US6690249B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power splitter/combiner multi-layer circuit
Assignee: Panasonic Holdings Corp
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Filing: 2002-03-22
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Granted: 2004-02-10
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Expires: 2022-03-22
Abstract
Abstract A high power amplifier has a first balun propagating a half of an input signal to an in-phase output terminal, and also propagating a fourth of the input signal to first and second opposite-phase output terminals, the signal propagated to the first and second opposite-phase output terminals lagging 180 degrees behind the signal propagated to the in-phase output terminal; first and second power amplifier circuits connected to the first and second opposite-phase output terminals of the first balun and having the same characteristics; a third power amplifier circuit connected to the in-phase output terminal of the first balun and having output power substantially twice as much as the output power of the first or second power amplifier circuit; and a second balun having first and second opposite-phase input terminals for receiving the outputs of the first and second power amplifier circuits, having an in-phase input terminal for receiving the output of the third power amplifier circuit, combining the outputs of the first, second and third power amplifier circuits, and propagating combined output.
Inventors
- 👤 Kaoru Ishida
- 👤 Masayuki Miyaji
- 👤 Hiroaki Kosugi
- 👤 Shin'ichi Kugou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:40
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/10; H01P5/12; H03; H03F; H03F3/00; H03F3/60; H03F3/602
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
238 words
A power splitter or combiner circuit comprising: first and second stacked dielectric plates; a shield grounding conductor disposed between said first and second dielectric plates; a transmission line comprised of a conductor pattern on said first dielectric plate on the opposite side of said shield grounding conductor, and having an input terminal on an end thereof, and having a first through hole on the other end thereof; first and second quarter-wave length lines with ends thereof commonly connected to said transmission line, and other ends thereof provided with first and second output lines respectively; first and second isolation resistors connected to said other ends of said first and second quarter-wavelength lines, respectively; a common terminal connected to the other ends of said first and second isolation resistors, and provided with a second through hole; third and fourth quarter-wavelength lines disposed parallel to each other, each comprised of a conductor pattern on said second dielectric plate on the opposite side of said shield grounding conductor, and ends thereof commonly connected electrically via said first through hole; third and fourth output lines connected to the other ends of said third and fourth quarter-wavelength lines respectively; third and fourth isolation resistors connected to said other ends of said third and fourth quarter-wavelength lines respectively; and a common terminal connected to the other ends of said third and fourth absorption resistances, and having a through hole connected to said second through hole.
Claim 2
Dependent Claim
238 words
A power splitter or combiner circuit comprising: first and second stacked dielectric plates; a shield grounding conductor disposed between said first and second dielectric plates; a transmission line comprised of a conductor pattern on said first dielectric plate on the opposite side of said shield grounding conductor, and having an input terminal on an end thereof, and having a first through hole on the other end thereof; first and second quarter-wave length lines with ends thereof commonly connected to said transmission line, and other ends thereof provided with first and second output lines respectively; first and second isolation resistors connected to said other ends of said first and second quarter-wavelength lines, respectively; a common terminal connected to the other ends of said first and second isolation resistors, and provided with a second through hole; third and fourth quarter-wavelength lines disposed parallel to each other, each comprised of a conductor pattern on said second dielectric plate on the opposite side of said shield grounding conductor, and ends thereof commonly connected electrically via said first through hole; third and fourth output lines connected to the other ends of said third and fourth quarter-wavelength lines respectively; third and fourth isolation resistors connected to said other ends of said third and fourth quarter-wavelength lines respectively; and a common terminal connected to the other ends of said third and fourth absorption resistances, and having a through hole connected to said second through hole.
Claim 3
Dependent Claim
55 words
A power splitter or combiner circuit in accordance with claim 1 , wherein a first plurality of said lines comprised of conductor patterns are disposed on said first dielectric plate, and a second plurality of said lines are disposed on a third dielectric plate stacked on said first dielectric plate via another shield grounding conductor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-02-09 | 2007-08-11 | 2008-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-02-09 | 2011-08-11 | 2012-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-02-09 | 2015-08-11 | 2016-02-10 | $7700.00 | Window Closed / Lapsed |