US4538122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diode oscillator with independently variable frequency and power
Assignee: Alcatel Lucent NV
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Filing: 1983-08-16
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Granted: 1985-08-27
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Expires: 2003-08-16
Abstract
Abstract The oscillator includes a two-terminal device (1) as an active element and an impedance-matching network (4) for matching the two-terminal device to a load (A). The impedance-matching network is formed by a coupler (4) having four terminals (2, 3, 7, 8) two of which (7, 8) are terminated with impedances (5, 6) whose values are chosen depending on the output power or frequency to be adjusted or are varied as desired. Another of the terminals is connected to the active two-terminal device (1), and the fourth terminal (3) is the oscillator output.
Inventors
- 👤 Laszlo Szabo
- 👤 Klaus Schunemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:50
CPC Classifications
H; H03; H03B; H03B9/00; H03B9/12; H03B9/14; H03B9/141
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
104 words
An oscillator for electromagnetic waves, comprising a two-terminal device (1) as an active element and an impedance-matching network (4) for matching the two-terminal device to a load (A), characterized in that the impedance-matching network is formed by a coupler (4) having four terminals (2, 3, 7, 8), that a respective first and second of the terminals (7, 8) are terminated with variable impedances (5, 6) for independently adjusting or continuously varying the output power and the frequency, respectively, that a third one of the terminals (2) is connected to the active two-terminal device (1), and that a fourth terminal (3) is the oscillator output.
Claim 2
Dependent Claim
104 words
An oscillator for electromagnetic waves, comprising a two-terminal device (1) as an active element and an impedance-matching network (4) for matching the two-terminal device to a load (A), characterized in that the impedance-matching network is formed by a coupler (4) having four terminals (2, 3, 7, 8), that a respective first and second of the terminals (7, 8) are terminated with variable impedances (5, 6) for independently adjusting or continuously varying the output power and the frequency, respectively, that a third one of the terminals (2) is connected to the active two-terminal device (1), and that a fourth terminal (3) is the oscillator output.
Claim 3
Dependent Claim
126 words
An oscillator for electromagnetic waves, comprising a two-terminal device (1) as an active element and an impedance-matching network (4) for matching the two-terminal device to a load (A), characterized in that the impedance-matching network is formed by a coupler (4) having four terminals (2, 3, 7, 8), that a respective first and second of the terminals (7, 8) are terminated with variable impedances for independently adjusting or continuously varying the output power and the frequency, respectively, that a third one of the terminals (3) is terminated with a further impedance (10) equal to the characteristic impedance of the coupler, and that a fourth terminal (2) is connected to the two-terminal device (1) on the one hand and to the oscillator output (A) on the other hand.
Claim 4
Dependent Claim
126 words
An oscillator for electromagnetic waves, comprising a two-terminal device (1) as an active element and an impedance-matching network (4) for matching the two-terminal device to a load (A), characterized in that the impedance-matching network is formed by a coupler (4) having four terminals (2, 3, 7, 8), that a respective first and second of the terminals (7, 8) are terminated with variable impedances for independently adjusting or continuously varying the output power and the frequency, respectively, that a third one of the terminals (3) is terminated with a further impedance (10) equal to the characteristic impedance of the coupler, and that a fourth terminal (2) is connected to the two-terminal device (1) on the one hand and to the oscillator output (A) on the other hand.
Claim 5
Dependent Claim
30 words
An oscillator as claimed in claim 1, characterized in that the impedances (5, 6) connected to the first and second terminals (7, 8) are continuously variable independently of each other.
Claim 6
Dependent Claim
17 words
An oscillator as claimed in claim 3 characterized in that the coupler is implemented in finline form.
Claim 7
Dependent Claim
25 words
An oscillator as claimed in claim 4, characterized in that the active two-terminal device and the impedances are connected to the coupler via fin lines.
Claim 8
Dependent Claim
17 words
An oscillator as claimed in claim 5, characterized in that the continously variable impedances are varactor diodes.
Claim 9
Dependent Claim
17 words
An oscillator as claimed in claim 3, characterized in that the continuously variable impedances are varactor diodes.
Claim 10
Dependent Claim
17 words
An oscillator as claimed in claim 4, characterized in that the continuously variable impedances are varactor diodes.
Claim 11
Dependent Claim
17 words
An oscillator as claimed in claim 1, characterized in that the coupler is implemented in fin-line form.
Claim 12
Dependent Claim
17 words
An oscillator as claimed in claim 2, characterized in that the coupler is implemented in fin-line form.
Claim 13
Dependent Claim
28 words
An oscillator as claimed in claim 2, characterized in that the impedances (5,6) connected to the first and second terminals (7,8) are continuously variable independently of each other.
Claim 14
Dependent Claim
17 words
An oscillator as claimed in claim 11, characterized in that the coupler is implemented in fin-line form.
Claim 15
Dependent Claim
25 words
An oscillator as claimed in claim 12, characterized in that the active two-terminal device and the impedances are connected to the coupler via fin lines.
Claim 16
Dependent Claim
17 words
An oscillator as claimed in claim 13, characterized in that the continuously variable impedances are varactor diodes.
Claim 17
Dependent Claim
17 words
An oscillator as claimed in claim 12, characterized in that the continuously variable impedances are varactor diodes.
Claim 18
Dependent Claim
17 words
An oscillator as claimed in claim 11, characterized in that the continuously variable impedances are varactor diodes.
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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) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |