Patent US5177486A successfully refreshed from Google Patents.
US5177486A
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Optically activated hybrid pulser with patterned radiating element
Assignee: United States Department of the Army
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Filing: 1991-11-25
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Granted: 1993-01-05
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Expires: 2011-11-25
Abstract
Abstract A high voltage sub-nanosecond pulser and radiator including a radial transsion line consisting of a dielectric member sandwiched between two patterned layers of metallization, one of which comprises a plurality of radiating elements. A photoconductive semiconductor gallium arsenide switch is embedded in the dielectric member which has a constant thickness. The other layer of metallization includes an apertured grid adjacent one surface of the switch for application of an energization pulse of laser light.
Inventors
- 👤 Anderson H. Kim
- 👤 Maurice Weiner
- 👤 Louis J. Jasper, Jr.
- 👤 Thomas E. Koscica
- 👤 Robert J. Youmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:39
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/282; H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/2676; H03; H03K; H03K17/00; H03K17/51; H03K17/78; H03K3/00; H03K3/02; H03K3/53; H03K3/57; G01S13/00; G01S13/02; G01S13/0209
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
149 words
An integrated nanosecond signal generator and radiator apparatus comprising: an electrical energy storage device coupled to a source of electrical voltage and including a transmission line comprised of a dielectric member sandwiched between upper and lower radial type electrical conductors which are disposed parallel to each other; a photoconductive semiconductor switch coupled to said energy storage element and centrally located beneath said upper conductor, said switch becoming conductive upon the application of a predetermined type of light energy so as to cause a high amplitude, narrow output video pulse of nanosecond pulse width dimensions to be generated at the radial center of said upper and lower radial type conductors, and wherein one of said radial type conductors further comprises antenna mans for radiating the RF energy of the generated video pulse, and wherein said upper conductor includes aperture means thereon for the application of light energy to said switch.
Claim 2
Dependent Claim
149 words
An integrated nanosecond signal generator and radiator apparatus comprising: an electrical energy storage device coupled to a source of electrical voltage and including a transmission line comprised of a dielectric member sandwiched between upper and lower radial type electrical conductors which are disposed parallel to each other; a photoconductive semiconductor switch coupled to said energy storage element and centrally located beneath said upper conductor, said switch becoming conductive upon the application of a predetermined type of light energy so as to cause a high amplitude, narrow output video pulse of nanosecond pulse width dimensions to be generated at the radial center of said upper and lower radial type conductors, and wherein one of said radial type conductors further comprises antenna mans for radiating the RF energy of the generated video pulse, and wherein said upper conductor includes aperture means thereon for the application of light energy to said switch.
Claim 3
Dependent Claim
15 words
The apparatus according to claim 1 wherein said antenna means comprises a pattern of metallization.
Claim 4
Dependent Claim
165 words
An integrated nanosecond signal generator and radiator apparatus comprising: an electrical energy storage device coupled to a source of electrical voltage and including a transmission line comprised of a dielectric member sandwiched between upper and lower radial type electrical conductors which are disposed parallel to each other, one of said radial type conductors further comprising an antenna means for radiating the RF energy of the generated video pulse, said antenna means having a pattern of metallization which has a plurality of stripline antenna element; a photoconductive semiconductor switch coupled to said energy storage element and centrally located beneath said upper conductor, said switch becoming conductive upon the application of a predetermined type of light energy so as to cause a high amplitude, narrow output video pulse of nanosecond pulsewidth dimensions to be generated at the radial center of said upper and lower radial type conductors, and wherein said upper radial type conductor includes aperture means thereon for the application of light energy to said switch.
Claim 5
Dependent Claim
165 words
An integrated nanosecond signal generator and radiator apparatus comprising: an electrical energy storage device coupled to a source of electrical voltage and including a transmission line comprised of a dielectric member sandwiched between upper and lower radial type electrical conductors which are disposed parallel to each other, one of said radial type conductors further comprising an antenna means for radiating the RF energy of the generated video pulse, said antenna means having a pattern of metallization which has a plurality of stripline antenna element; a photoconductive semiconductor switch coupled to said energy storage element and centrally located beneath said upper conductor, said switch becoming conductive upon the application of a predetermined type of light energy so as to cause a high amplitude, narrow output video pulse of nanosecond pulsewidth dimensions to be generated at the radial center of said upper and lower radial type conductors, and wherein said upper radial type conductor includes aperture means thereon for the application of light energy to said switch.
Claim 6
Dependent Claim
20 words
The apparatus according to claim 2 wherein said pattern of metallization comprises a set of mutually parallel stripline antenna elements.
Claim 7
Dependent Claim
14 words
The apparatus according to claim 3 wherein said one conductor comprises the lower conductor.
Claim 8
Dependent Claim
47 words
The pulse signal generator according to claim 1 wherein antenna means comprise said lower conductor and wherein said switch comprises a semiconductor switch centrally located beneath said upper conductor and wherein said upper conductor includes aperture means thereat for the application of light energy to said switch.
Claim 9
Dependent Claim
20 words
The apparatus according to claim 6 and additionally including means for electrically connecting said antenna means to said semiconductor switch.
Claim 10
Dependent Claim
25 words
The apparatus according to claim 7 wherein said means for connecting comprises a region of metallization passing through said dielectric member to said semiconductor switch.
Claim 11
Dependent Claim
22 words
The apparatus according to claim 8 wherein said photoconductive semiconductor switch comprises a bulk semiconductor switch device embedded in said dielectric medium.
Claim 12
Dependent Claim
15 words
The apparatus according to claim 9 wherein said semiconductor switch device is comprised of GaAs.
Claim 13
Dependent Claim
17 words
The apparatus according to claim 9 wherein said upper conductor comprises a generally continuous layer of metallization.
Claim 14
Dependent Claim
18 words
The apparatus according to claim 11 wherein said continuous layer of metallization comprises a circular pattern of metallization.
Claim 15
Dependent Claim
34 words
The pulse signal generator according to claim 12 wherein said circular pattern of metallization includes a set of light apertures at the center for the application of energizing light to said semiconductor switch device.
Claim 16
Dependent Claim
23 words
The pulse signal generator according to claim 13 wherein said antenna means comprises a pattern of metallization including a plurality of stripline segments.
Claim 17
Dependent Claim
21 words
The pulse signal generator according to claim 14 wherein said plurality of stripline segments comprise a set of linear stripline segments.
Claim 18
Dependent Claim
30 words
The apparatus according to claim 15 wherein said set of linear stripline segments are commonly connected to said region of metallization passing through said dielectric member to said semiconductor switch.
Claim 19
Dependent Claim
13 words
The apparatus according to claim 16 wherein said stripline segments are mutually parallel.
References Cited (Backward Citations)
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