US3662316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Short base-band pulse receiver
Assignee: Unisys Corp
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Filing: 1971-03-12
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Granted: 1972-05-09
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Expires: 1991-03-12
Abstract
Abstract A pulse receiver for detecting short base-band electromagnetic pulses employs a dispersionless, broad band transmission line antenna with a circuit cooperating with a biased semiconductor diode located within the transmission line for instantaneously detecting substantially the total energy of the base-band pulse and providing a corresponding output suitable for application in conventional utilization circuits.
Inventors
- 👤 Kenneth W Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:33
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/02; G; G01; G01S; G01S13/00; G01S13/02; G01S13/0209; H01; H01Q; H01Q13/00; H01Q13/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
138 words
A receiver for receiving short electromagnetic pulse signals comprising: wide band transmission line antenna means for collecting and propagating an electromagnetic pulse signal in the TEM transmission mode, semiconductor diode means having first and second stable states in energy exchanging relation with said antenna means, first circuit means biasing said semiconductor diode means in said first state for permitting said semiconductor diode means substantially instantaneously to change from its said first to its said second state upon arrival at said semiconductor diode means of said electromagnetic pulse in substantially undistorted form, second circuit means coupled to said first circuit means for producing an output wave of amplified energy and of greater duration than said electromagnetic pulse, and third circuit means utilizing a version of said output wave for returning said semiconductor diode means to its said first state.
Claim 2
Dependent Claim
138 words
A receiver for receiving short electromagnetic pulse signals comprising: wide band transmission line antenna means for collecting and propagating an electromagnetic pulse signal in the TEM transmission mode, semiconductor diode means having first and second stable states in energy exchanging relation with said antenna means, first circuit means biasing said semiconductor diode means in said first state for permitting said semiconductor diode means substantially instantaneously to change from its said first to its said second state upon arrival at said semiconductor diode means of said electromagnetic pulse in substantially undistorted form, second circuit means coupled to said first circuit means for producing an output wave of amplified energy and of greater duration than said electromagnetic pulse, and third circuit means utilizing a version of said output wave for returning said semiconductor diode means to its said first state.
Claim 3
Dependent Claim
60 words
Apparatus as described in claim 1 wherein: said first circuit means comprises bias voltage divider means in series relation with said semiconductor diode means, said second circuit means comprises: transistor amplifier means, potential source means, and output means, and said third circuit means comprises unilateral conductor means for coupling a version of said output wave to said voltage divider means.
Claim 4
Dependent Claim
31 words
Apparatus as described in claim 1 wherein said wide band transmission line antenna means comprises dual conductor transmission line means having a substantially constant characteristic impedance and a substantially dispersionless characteristic.
Claim 5
Dependent Claim
26 words
Apparatus as described in claim 3 wherein said dual conductor transmission line means comprises first and second planar conductor means having opposed major conducting surface means.
Claim 6
Dependent Claim
16 words
Apparatus as described in claim 4 wherein said planar conductor means are of truncated triangular shape.
Claim 7
Dependent Claim
28 words
Apparatus as described in claim 5 wherein TEM mode dual conductor means is coupled at said truncations to said planar conductor means in substantially impedance matched relation thereto.
Claim 8
Dependent Claim
22 words
Apparatus as described in claim 6 wherein said semi-conductor diode means is coupled in energy exchanging relation across said dual conductor means.
Claim 9
Dependent Claim
15 words
Apparatus as described in claim 1 wherein said semi-conductor diode means comprises tunnel diode means.
Claim 10
Dependent Claim
29 words
Apparatus as described in claim 8 wherein said first circuit means comprises in series relation: bias source means, first impedance mEans, said tunnel diode means, and second impedance means.
Claim 11
Dependent Claim
79 words
Apparatus as described in claim 9 wherein said second circuit means comprises: third impedance means, first diode means, and first transistor means, said bias source means, said third impedance means, said diode means, and said first transistor means being connected in series relation, and fourth impedance means coupled between first impedance means and said tunnel diode means for forward biasing said first transistor means into conduction substantially when said tunnel diode means is transferred to its said second state.
Claim 12
Dependent Claim
98 words
Apparatus as described in claim 10 wherein said second circuit means comprises: fifth impedance means, second transistor means, and potential source means, said fifth impedance means, said second transistor means, and said potential source means being connected in series relation, sixth impedance means coupled between said third impedance means and said first diode means for causing conduction of said second transistor means when said first transistor means is in its conductive state, seventh and eighth impedance means coupled across said fifth impedance means and said second transistor means for providing said output wave across said eighth impedance means,
Claim 13
Dependent Claim
89 words
Apparatus as described in claim 11 wherein said third circuit means comprises: second diode means connected between said first diode means and said third impedance means and connected between said first impedance means and said tunnel diode means, and third diode means connected between said first impedance means and said tunnel diode means and connected to said potential source means, said first and said second diode means being poled for causing return of said tunnel diode means to its said first state upon conduction of said second transistor 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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |