US3710258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse radiator system
Assignee: SP-MICROWAVE Inc
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Filing: 1971-02-22
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Granted: 1973-01-09
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Expires: 1991-02-22
Abstract
Abstract A transmission line system having a primarily signal-initiating section and primarily signal-radiating section, along all of which transmission line sections traveling electromagnetic waves may propogate without adverse interference caused by impedance discontinuities, is employed cyclically as an energy storage device and as an impulse radiation device having spacially directive characteristics.
Inventors
- 👤 H Strenglein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:41
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/02; H01Q9/00; H01Q9/005; H03; H03K; H03K3/00; H03K3/02; H03K3/53
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
130 words
Apparatus for radiating base band duration impulses of electromagnetic energy comprising: three-port transmission line means having first and second radiating aperture port means and input port means coupled thereto between said aperture port means, current source means adjacent said input port means having a first time constant for substantially uniformly changing said transmission line means, switching circuit means adjacent said charging means having conducting and non conducting states and having a second time constant substantially shorter than said first time constant for causing field collapsing waves to propagate toward said aperture ports for substantially discharging said transmission line means, and means for re-directing said base band duration impulses radiated by said aperture port means along a substantially common space path upon arrival of said collapsing fields at said aperture ports.
Claim 2
Dependent Claim
130 words
Apparatus for radiating base band duration impulses of electromagnetic energy comprising: three-port transmission line means having first and second radiating aperture port means and input port means coupled thereto between said aperture port means, current source means adjacent said input port means having a first time constant for substantially uniformly changing said transmission line means, switching circuit means adjacent said charging means having conducting and non conducting states and having a second time constant substantially shorter than said first time constant for causing field collapsing waves to propagate toward said aperture ports for substantially discharging said transmission line means, and means for re-directing said base band duration impulses radiated by said aperture port means along a substantially common space path upon arrival of said collapsing fields at said aperture ports.
Claim 3
Dependent Claim
96 words
Apparatus as described in claim 1 wherein said current source means and said switching circuit means are so constructed and arranged as to cause, when said switching circuit means is activated, field-collapsing waves to propagate along said transmission line means to said first and second radiating aperture port means for the purpose of causing directional radiation from said first and second radiating aperture port means of base band duration electromagnetic energy impulses of amplitude substantially proportional to the rate of change with time of the collapsing fields at said first and second radiating aperture port means.
Claim 4
Dependent Claim
35 words
Apparatus as described in claim 2 wherein the wave pattern of said impulses of electromagnetic energy comprises opposed-polarity first and second impulses, the second impulse substantially immediately following the first impulse in substantially non-overlapping relation.
Claim 5
Dependent Claim
25 words
Apparatus as described in claim 3 wherein said transmission line means comprises first and second substantially planar electrical conductor means with opposed major conducting surfaces.
Claim 6
Dependent Claim
23 words
Apparatus as described in claim 4 wherein said substantially planar conducting means is adapted to propagate traveling electromagnetic waves in the TEM mode.
Claim 7
Dependent Claim
71 words
Apparatus as described in claim 1 wherein said three-port transmission line means comprises: junction means having first, second, and third port means, dual-element transmission line means coupled between said junction means and said input port means, and first and second dual-element transmission line means respectively coupled between said second junction port means and said first aperture port means and between said third junction port means and said second aperture port means.
Claim 8
Dependent Claim
35 words
Apparatus as described in claim 6 wherein said elements of said dual-element transmission line means coupled to said aperture port means comprise first and second substantially planar electrical conductor means having opposed major conducting surfaces.
Claim 9
Dependent Claim
27 words
Apparatus as described in claim 7 wherein said major conducting surfaces have a width b and a separation h, where the ratio b/h is held substantially constant.
Claim 10
Dependent Claim
37 words
Apparatus as described in claim 7 wherein said major conducting surfaces have a region adjacent said aperture port means in which the value of b progressively expands for the purpose of defining said radiating aperture port means.
Claim 11
Dependent Claim
22 words
Apparatus as described in claim 9 wherein said means for re-directing impulse energy radiated by said aperture port means comprises reflector means.
Claim 12
Dependent Claim
27 words
Apparatus as described in claim 10 wherein said reflector means is oriented at substantially 45* to the direction of propagation of energy within said dual-element transmission line.
Claim 13
Dependent Claim
92 words
Apparatus as described in claim 1 wherein said means for re-directing impulse energy radiated by saId aperture port means comprises first and second reflector means, said first reflector means being located an arbitrary average distance d from said first radiating aperture port means, and, said second reflector means being located an arbitrary average distance d from said second radiating aperture port means plus an incremental distance c Tau , where c is velocity of propagation within said transmission line means and Tau is the time duration of said impulse of electromagnetic energy.
Claim 14
Dependent Claim
25 words
Apparatus as described in claim 12 wherein said first reflector means lies at an angle of substantially 90* with respect to said second reflector means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |