US3739392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base-band radiation and reception system
Assignee: Unisys Corp
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Filing: 1971-07-29
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Granted: 1973-06-12
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Expires: 1991-07-29
Abstract
Abstract A base-band transmitter and receiver antenna system for operation in subnanosecond pulse radio systems of the type detecting the presence or range of near-by reflecting objects utilizes directive, dispersionless, broad band traveling wave transmission line radiator and receiver antenna elements arranged cooperatively to limit the effect of base-band energy directly coupled from the transmitter to the receiver.
Inventors
- 👤 G Ross
- 👤 K Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:16
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/52; H01Q1/521; H01Q1/525; H01Q21/00; H01Q21/28; G; G01; G01S; G01S13/00; G01S13/02; G01S13/0209
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
177 words
Object sensor means comprising: subnanosecond signal generator means, dispersionless transmission line antenna means responsive to said subnanosecond signal generator means for transmitting a subnanosecond signal into space and including: first and second substantially triangular conductor means having relatively closely spaced apices and flared-apart base aperture edges for forming a transmission line having a constant impedance therealong, said conductor means forming a radiating antenna having an effective radiation center, and dispersionless dual conductor transmission line means for supplying subnanosecond signals to said apices, collimation means responsive to said transmission line antenna means for transmitting a collimated subnanosecond signal into space toward said reflecting object and including: cylindrical parabolic conductor means having a focal line passing through said effective radiation center, said parabolic cylinder means having a flat conductive wall at a first end thereof, the second end of said parabolic cylinder means being open to space, and dielectric support means for supporting said triangular conductor means in fixed relation to said parabolic cylinder means, and receiver means responsive selectively to a reflected version of said collimated subnanosecond signal.
Claim 2
Dependent Claim
177 words
Object sensor means comprising: subnanosecond signal generator means, dispersionless transmission line antenna means responsive to said subnanosecond signal generator means for transmitting a subnanosecond signal into space and including: first and second substantially triangular conductor means having relatively closely spaced apices and flared-apart base aperture edges for forming a transmission line having a constant impedance therealong, said conductor means forming a radiating antenna having an effective radiation center, and dispersionless dual conductor transmission line means for supplying subnanosecond signals to said apices, collimation means responsive to said transmission line antenna means for transmitting a collimated subnanosecond signal into space toward said reflecting object and including: cylindrical parabolic conductor means having a focal line passing through said effective radiation center, said parabolic cylinder means having a flat conductive wall at a first end thereof, the second end of said parabolic cylinder means being open to space, and dielectric support means for supporting said triangular conductor means in fixed relation to said parabolic cylinder means, and receiver means responsive selectively to a reflected version of said collimated subnanosecond signal.
Claim 3
Dependent Claim
25 words
Apparatus as described in claim 1 wherein said transmission line antenna means has a plane of symmetry at substantially right angles to said focal line.
Claim 4
Dependent Claim
22 words
Apparatus as described in claim 2 wherein said receiver means comprises: dispersionless transmission line receiver antenna means, and receiver signal collimation means.
Claim 5
Dependent Claim
78 words
Apparatus as described in claim 3 wherein said dispersionless transmission line receiver antenna means comprises: first and second substantially triangular conductor means having relatively closely spaced apices and flared-apart base aperture edges for forming a transmission line having a constant impedance. said conductor means forming a receiving antenna having an effective energy reception center, dielectric support means for supporting said triangular conductor means, and dispersionless dual conductor transmission line means for propagating received subnanosecond signals from said apices.
Claim 6
Dependent Claim
24 words
Apparatus as described in claim 5 further including receiver collimation means for coupling received collimated subnanosecond signals to said transmission line receiver antenna means.
Claim 7
Dependent Claim
68 words
Apparatus as described in claim 5 wherein said receiver collimation means comprises: cylindrical parabolic conductor means having a focal line passing through said effective reception center, said cylinder having a flat conductive wall at a first end thereof, the second end of said cylinder being open to space, and dielectric support means for supporting said receiver antenna triangular conductor means in fixed relation to said parabolic cylinder means.
Claim 8
Dependent Claim
26 words
Apparatus as described in claim 6 wherein said receiver transmission line antenna means has a plane of symmetry substantially at right angles to said focal line.
Claim 9
Dependent Claim
50 words
Apparatus as described in claim 7 wherein said collimating transmitter parabolic cylinder flat wall and said collimating receiver parabolic cylinder flat wall are spaced side-by-side in fixed parallel relation by an electrical insulator sheet so that the respective focal lines of said transmitter and receiver parabolic cylinders are substantially collinear.
Claim 10
Dependent Claim
27 words
Apparatus as described in claim 8 further including receiver circuit means adapted to respond only at the receipt of a collimated subnanosecond duration signal of preditermined polarity.
Claim 11
Dependent Claim
124 words
Object sensor means comprising: subnanosecond signal generator means, dispersionless transmission line antennA means responsive to said subnanosecond signal generator means for transmitting a direct subnanosecond signal into space and including: first and second substantially triangular conductor means having relatively closely spaced apices and flared-apart base aperture edges for forming a transmission line having a constant impedance therealong, said conductor means forming a radiating antenna having an effective radiation center, and dispersionless dual conductor transmission line means for coupling subnanosecond signals to said apices, collimation means responsive to said transmission line antenna means for transmitting a collimated subnanosecond signal into space toward said reflecting object, and receiver means coupled with the collimating means and responsive selectively to a reflected version of said collimated subnanosecond signal.
Claim 12
Dependent Claim
124 words
Object sensor means comprising: subnanosecond signal generator means, dispersionless transmission line antennA means responsive to said subnanosecond signal generator means for transmitting a direct subnanosecond signal into space and including: first and second substantially triangular conductor means having relatively closely spaced apices and flared-apart base aperture edges for forming a transmission line having a constant impedance therealong, said conductor means forming a radiating antenna having an effective radiation center, and dispersionless dual conductor transmission line means for coupling subnanosecond signals to said apices, collimation means responsive to said transmission line antenna means for transmitting a collimated subnanosecond signal into space toward said reflecting object, and receiver means coupled with the collimating means and responsive selectively to a reflected version of said collimated subnanosecond signal.
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |