Coaxial-line to waveguide transition for horn antenna
Abstract
Abstract THE INVENTION RELATES TO AN ANTENNA ASSEMBLY FOR MICROWAVE USAGE WHICH IS CHARACTERIZED BY A COAXIAL-LINE TO WAVEGUIDE TRANSITION. THE ANTENNA INCLUDES A RECTANGULAR WAVEGUIDE SECTION, A SECTORAL HORN, AND A TRANSFORMER FOR PROVIDING IMPEDANCE MATCHING BETWEEN THE WAVEGUIDE AND THE HORN. THE TRANSITION IS ACCOMPLISHED BY FEEDING TO THE END OF THE WAVEGUIDE AN E-PLANE LOOP, I.E., A LOOP PARALLEL TO THE ELECTRIC FIELD PLANE IN THE WAVEGUIDE. THE END FEEDING OF THE WAVEGUIDE RESULTS IN A MINIMUM VERTICAL DIMENSION OF THE OVERALL DEVICE WHEN THE COAXIAL LINE IS ATTACHED. THE SMALL VERTICAL DIMENSION IS DESIRABLE IN ORDER TO PERMIT STACKING OF A REQUIRED NUMBER OF ANTENNAS IN AN ARRAY HAVING LIMITED SPACE REQUIREMENTS BETWEEN ASSEMBLY INPUTS. THE INVENTION ALSO FEATURES A WIDE BAND RESPONSE.
Inventors
- 👤 Jerry E Boyns
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |