US4629978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dipole antenna
Assignee: Lockheed Martin Corp
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Filing: 1984-11-01
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Granted: 1986-12-16
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Expires: 2004-11-01
Abstract
Abstract An antenna comprising orthogonal arrays of resistive thermocouple dipoles interconnected by transversely extending conductive elements of discrete length. The components are designed to create an additional response by a traveling wave effect on the dipoles along the Poynting vector to offset the fall-off in dipole sensitivity experienced as frequency rises.
Inventors
- 👤 Edward E. Aslan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:06
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
65 words
An antenna responsive to a particular range of frequencies, comprising mutually orthogonal antenna assemblies, each including an array of resistive thermocouples extending along a substantially longitudinal axis, a conductive element of discrete length connected between each of said thermocouples and extending transverse to the respective array, the spacing between said conductive elements being approximately one-half wavelength at the mid-frequency of said particular range of frequencies.
Claim 2
Dependent Claim
65 words
An antenna responsive to a particular range of frequencies, comprising mutually orthogonal antenna assemblies, each including an array of resistive thermocouples extending along a substantially longitudinal axis, a conductive element of discrete length connected between each of said thermocouples and extending transverse to the respective array, the spacing between said conductive elements being approximately one-half wavelength at the mid-frequency of said particular range of frequencies.
Claim 3
Dependent Claim
29 words
An antenna as defined in claim 1, comprising three sets of said mutually orthogonal antenna assemblies, each of said sets being aligned along one of three mutually orthogonal axes.
Claim 4
Dependent Claim
23 words
An antenna as defined in claim 1, wherein said thermocouples and said conductive elements are mounted upon a substrate having a square cross-section.
Claim 5
Dependent Claim
23 words
An antenna as defined in claim 1, wherein said thermocouples and said conductive elements are mounted upon a substrate having a circular cross-section.
Claim 6
Dependent Claim
97 words
An antenna responsive to a particular range of frequencies, comprising mutually orthogonal antenna assemblies, each including a pair of arrays of resistive thermocouples, the thermocouples of each of said arrays extending along a substantially longitudinal axis, and the arrays of each said pair lying along parallel axes, conductive means interconnecting the arrays of each said pair at one end, a conductive element of discrete length connected between each of said thermocouples and extending transverse to the respective array, the spacing between the conductive elements being approximately one-half wavelength at the mid-frequency of said particular range of frequencies.
Claim 7
Dependent Claim
97 words
An antenna responsive to a particular range of frequencies, comprising mutually orthogonal antenna assemblies, each including a pair of arrays of resistive thermocouples, the thermocouples of each of said arrays extending along a substantially longitudinal axis, and the arrays of each said pair lying along parallel axes, conductive means interconnecting the arrays of each said pair at one end, a conductive element of discrete length connected between each of said thermocouples and extending transverse to the respective array, the spacing between the conductive elements being approximately one-half wavelength at the mid-frequency of said particular range of frequencies.
Claim 8
Dependent Claim
29 words
An antenna as defined in claim 5, comprising three sets of said mutually orthogonal antenna assemblies, each of said sets being aligned along one of three mutually orthogonal axes.
Claim 9
Dependent Claim
23 words
An antenna as defined in claim 5, wherein said thermocouples and said conductive elements are mounted upon a substrate having a square cross-section.
Claim 10
Dependent Claim
23 words
An antenna as defined in claim 5, wherein said thermocouples and said conductive elements are mounted upon a substrate having a circular cross-section.
References Cited (Backward Citations)
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US3789299A
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US3794914A
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US4518912A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |