US3170128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave broadband balun between coaxial line and parallel strip line
Assignee: Individual
•
Filing: 1963-02-15
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Granted: 1965-02-16
•
Expires: 1983-02-15
Abstract
No abstract record available.
Inventors
- 👤 Charles R Eason
- 👤 John L Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:57
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A BALUM FOR PROVIDING A BROAD-BAND TRANSITION FROM AN UNBALANCED TRANSMISSION LINE TO A BALANCED TRANSMISSION LINE, COMPRISING A DOUBLE-RIDGED RECTANGULAR WAVEGUIDE, MEANS FOR CONNECTING AT A FIRST LOCATION SAID UNBALANCED TRANSMISSION LINE TO SAID RIDGES, MEANS CONNECTING AT A SECOND LOCATION SAID BALANCED TRANSMISSION LINE TO SAID RIDGES, SAID RIDGES BEING SPACED SUCH THAT THE CHARACTERISTIC IMPEDANCE OF SAID WAVEGUIDE AT ALL LOCATIONS BETWEEN SAID FIRST AND SECOND LOCATIONS IS EQUAL TO THE CHARACTERISTIC IMPEDANCE OF SAID BALANCED AND UNBALANCED TRANSMISSION LINES, AND SAID FIRST AND SECOND LOCATIONS BEING SPACED A DISTANCE OF AT LEAST ONE WAVELENGTH FOR ALL OPERATING FREQUENCIES.
Claim 2
Dependent Claim
102 words
A BALUM FOR PROVIDING A BROAD-BAND TRANSITION FROM AN UNBALANCED TRANSMISSION LINE TO A BALANCED TRANSMISSION LINE, COMPRISING A DOUBLE-RIDGED RECTANGULAR WAVEGUIDE, MEANS FOR CONNECTING AT A FIRST LOCATION SAID UNBALANCED TRANSMISSION LINE TO SAID RIDGES, MEANS CONNECTING AT A SECOND LOCATION SAID BALANCED TRANSMISSION LINE TO SAID RIDGES, SAID RIDGES BEING SPACED SUCH THAT THE CHARACTERISTIC IMPEDANCE OF SAID WAVEGUIDE AT ALL LOCATIONS BETWEEN SAID FIRST AND SECOND LOCATIONS IS EQUAL TO THE CHARACTERISTIC IMPEDANCE OF SAID BALANCED AND UNBALANCED TRANSMISSION LINES, AND SAID FIRST AND SECOND LOCATIONS BEING SPACED A DISTANCE OF AT LEAST ONE WAVELENGTH FOR ALL OPERATING FREQUENCIES.
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) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |