Patent US5752180A successfully refreshed from Google Patents.
US5752180A
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Converter for processing RF signals having different polarizations
Assignee: Vantiva SA
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Filing: 1995-10-18
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Granted: 1998-05-12
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Expires: 2015-10-18
Abstract
Abstract A radio frequency converter includes a plurality of signal paths for simultaneously processing two RF signals in the same band but with different polarizations, each of which includes a mixer and an oscillator. A common resonator is connected to the frequency control terminal of each of the oscillators and the oscillators work in a push-push configuration.
Inventors
- 👤 Chaoying Guo
- 👤 Jean-Paul Grimm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:09
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/18; H03B5/1864; H03B5/187; H03B5/1876
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
A radio frequency (RF) converter apparatus for processing RF signals received from a satellite, including RF signals of the same frequency but with different polarizations comprising: a plurality of signal paths for simultaneously receiving and processing respective ones of two of said RF signals in the same frequency band, but with different polarizations, each of said signal paths including a mixer and an oscillator for providing respective ones of two output intermediate frequency signals simultaneously, each of said oscillators having a frequency control line; and a resonator coupled with said frequency control line of each of said oscillators so that each of said oscillators oscillates at the same frequency.
Claim 2
Dependent Claim
109 words
A radio frequency (RF) converter apparatus for processing RF signals received from a satellite, including RF signals of the same frequency but with different polarizations comprising: a plurality of signal paths for simultaneously receiving and processing respective ones of two of said RF signals in the same frequency band, but with different polarizations, each of said signal paths including a mixer and an oscillator for providing respective ones of two output intermediate frequency signals simultaneously, each of said oscillators having a frequency control line; and a resonator coupled with said frequency control line of each of said oscillators so that each of said oscillators oscillates at the same frequency.
Claim 3
Dependent Claim
31 words
The converter of claim 1 wherein each of said frequency control lines is a micro-strip line and said resonator is a dielectric resonator arranged in the proximity of said micro-strip lines.
Claim 4
Dependent Claim
21 words
The converter of claim 2 wherein said micro-strip lines are in parallel and said resonator is arranged between said micro-strip lines.
Claim 5
Dependent Claim
38 words
The converter of claim 2 wherein at least one pair of said mixers and oscillators is included in a monolithic microwave integrated circuit and wherein said converter is used for the reception of direct broadcast system signals (DBS).
Claim 6
Dependent Claim
13 words
The converter of claim 2 wherein said oscillators work in a push-push fashion.
Claim 7
Dependent Claim
23 words
The converter of claim 1 wherein said frequency control lines are in parallel and said resonator is arranged between said frequency control lines.
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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) | 2001-05-11 | 2001-11-10 | 2002-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-11 | 2005-11-10 | 2006-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-11 | 2009-11-10 | 2010-05-12 | $7700.00 | Window Closed / Lapsed |