US3129387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-band distributed amplifiers
Assignee: BAE Systems Electronics Ltd
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Filing: 1959-06-19
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Granted: 1964-04-14
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Expires: 1979-06-19
Abstract
No abstract record available.
Inventors
- 👤 Sosin Boleslaw Marian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:33
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/08; H03F1/18; H03F1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A DISTRIBUTED AMPLIFER COMPRISING AN INPUT FILTER LINE INCLUDING A PLURALITY OF FILTER SECTIONS EACH HAVING A PRE-DETERMINED PASS BAND; AN OUTPUT FILTER LINE HAVING A PRE-DETERMINED PASS BAND WHICH INCLUDES A BAND OF FREQUENCIES WHICH IS ALSO INCLUDED IN THE PASS BAND OF THE INPUT FILTER LINE; A LOAD CONNECTED TO SAID OUTPUT FILTER LINE; SAID OUTPUT FILTER LINE INCLUDING A PLURALITY OF FILTER SECTIONS NEARER THE LOAD OF CHARACTERISTIC IMPEDANCE DECREASING STEPWISE TOWARDS THE LOAD AND A PLURALITY OF FILTER SECTIONS FARTHER FROM THE LOAD OF UNIFORM CHARACTERISTIC IMPEDANCE; A PLURALITY OF VALVES HAVING THEIR CONTROL ELECTRODES CONNECTED TO DIFFERENT FILTER SECTIONS ALONG SAID INPUT FILTER LINE AND THEIR ANODES CONNECTED TO DIFFERENT FILTER SECTIONS OF UNIFORM IMPEDANCE AND A SECOND PLURALITY OF VALVES HAVING THEIR CONTROL ELECTRODES CONNECTED TO DIFFERENT FILTER SECTIONS ALONG SAID INPUT FILTER LINE AND THEIR ANODES CONNECTED TO DIFFERENT FILTER SECTIONS OF DECREASING IMPEDANCE ALONG SAID OUTPUT FILTER LINE, WHEREIN THE DELAYS BETWEEN SAID ANODES ARE SUBSTANTIALLY THE SAME AS THE DELAYS BETWEEN THE CORRESPONDING CONTROL ELECTRODES; MEANS FOR APPLYING SIGNALS TO SAID INPUT FILTER LINE; AND MEANS FOR TAKING OUTPUT FROM SAID OUTPUT FILTER LINE.
Claim 2
Dependent Claim
193 words
A DISTRIBUTED AMPLIFER COMPRISING AN INPUT FILTER LINE INCLUDING A PLURALITY OF FILTER SECTIONS EACH HAVING A PRE-DETERMINED PASS BAND; AN OUTPUT FILTER LINE HAVING A PRE-DETERMINED PASS BAND WHICH INCLUDES A BAND OF FREQUENCIES WHICH IS ALSO INCLUDED IN THE PASS BAND OF THE INPUT FILTER LINE; A LOAD CONNECTED TO SAID OUTPUT FILTER LINE; SAID OUTPUT FILTER LINE INCLUDING A PLURALITY OF FILTER SECTIONS NEARER THE LOAD OF CHARACTERISTIC IMPEDANCE DECREASING STEPWISE TOWARDS THE LOAD AND A PLURALITY OF FILTER SECTIONS FARTHER FROM THE LOAD OF UNIFORM CHARACTERISTIC IMPEDANCE; A PLURALITY OF VALVES HAVING THEIR CONTROL ELECTRODES CONNECTED TO DIFFERENT FILTER SECTIONS ALONG SAID INPUT FILTER LINE AND THEIR ANODES CONNECTED TO DIFFERENT FILTER SECTIONS OF UNIFORM IMPEDANCE AND A SECOND PLURALITY OF VALVES HAVING THEIR CONTROL ELECTRODES CONNECTED TO DIFFERENT FILTER SECTIONS ALONG SAID INPUT FILTER LINE AND THEIR ANODES CONNECTED TO DIFFERENT FILTER SECTIONS OF DECREASING IMPEDANCE ALONG SAID OUTPUT FILTER LINE, WHEREIN THE DELAYS BETWEEN SAID ANODES ARE SUBSTANTIALLY THE SAME AS THE DELAYS BETWEEN THE CORRESPONDING CONTROL ELECTRODES; MEANS FOR APPLYING SIGNALS TO SAID INPUT FILTER LINE; AND MEANS FOR TAKING OUTPUT FROM SAID OUTPUT FILTER LINE.
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |