US4217468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spiral line oscillator
Assignee: United States Department of the Navy
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Filing: 1975-06-30
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Granted: 1980-08-12
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Expires: 1995-06-30
Abstract
Abstract A compact lightweight high power RF generator for use in military systems combines the principles of vector inversion transform systems with a RF tank circuit. The capacitively stored energy in the lines is discharged by means of high speed switching techniques with the energy store being a part of the tuned circuit.
Inventors
- 👤 Johnnie W. Rice
- 👤 Ronald J. Gripshover
- 👤 Millard F. Rose
- 👤 Richard C. Van Wagoner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:43
CPC Classifications
H; H03; H03B; H03B11/00; H03B11/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
73 words
A compact, lightweight RF power source comprising: a high-voltage, vector-inversion generator including a low impedance switch which when closed initiates vector inversion; at least one tuned inductor connected to one side of the high voltage output of said generator; and a high-speed switch interconnecting said inductor and the other side of the high voltage output of said generator for converting said generator and inductor into an RF source when the switch is closed.
Claim 2
Dependent Claim
73 words
A compact, lightweight RF power source comprising: a high-voltage, vector-inversion generator including a low impedance switch which when closed initiates vector inversion; at least one tuned inductor connected to one side of the high voltage output of said generator; and a high-speed switch interconnecting said inductor and the other side of the high voltage output of said generator for converting said generator and inductor into an RF source when the switch is closed.
Claim 3
Dependent Claim
14 words
The device of claim 1 wherein said vector-inversion generator is a spiral line generator.
Claim 4
Dependent Claim
16 words
The device of claim 1 wherein said vector-inversion generator is a multiswitch linear stacked stripline generator.
Claim 5
Dependent Claim
17 words
The device of claim 1 wherein said vector-inversion generator is a single switch linear stacked stripline generator.
Claim 6
Dependent Claim
18 words
The device of claim 1 including a means for delivering said RF energy operatively connected to said generator.
Claim 7
Dependent Claim
15 words
The device of claim 5 wherein said means for delivering RF energy is an antenna.
Claim 8
Dependent Claim
16 words
The device of claim 5 wherein said means for delivering RF energy operates by direct injection.
Claim 9
Dependent Claim
26 words
The device of claim 2 wherein said spiral line generator is a self-contained, high voltage pulse generator having a fast rise time and low output impedance.
Claim 10
Dependent Claim
36 words
The device of claim 8 wherein said spiral line generator comprises: an insulating core; twin transmission lines wound onto said core; and means to produce a transient high voltage across the ends of said transmission lines.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-12 | 1984-02-11 | 1984-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-12 | 1988-02-11 | 1988-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-12 | 1992-02-11 | 1992-08-12 | $7700.00 | Window Closed / Lapsed |