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US3792477A Expired / Lapsed US ⏱️ 0.0 years remaining

Decoy missile with electromagnetic wave backscatter control

Assignee: United States Department of the Air Force
•
Filing: 1969-05-16
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Granted: 1974-02-12
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Expires: 1989-05-16
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Abstract

Abstract A decoy missile is constructed with a centrally located dielectric region to establish electrically isolated forward and rearward vehicle sections. Various antenna arrangements are utilized to provide electromagnetic wave backscatter control. The antenna arrangements comprise combinations of laterally disposed coaxial cable stubs and peripherally disposed segmented ring antennas.

Inventors

  • 👤 K Tomiyasu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 20:52
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/38; F; F41; F41J; F41J2/00; H; H01; H01Q; H01Q15/00; H01Q15/23

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 53 words
A decoy missile comprising a space vehicle structure, a region of dielectric material disposed therein to define forward and rearward electrically isolated sections thereof, and two coaxial stub members, said stub members being attached to the forward section of said space vehicle structure and extended into and electrically insulated from said rearward section.
Claim 2
Dependent Claim 53 words
A decoy missile comprising a space vehicle structure, a region of dielectric material disposed therein to define forward and rearward electrically isolated sections thereof, and two coaxial stub members, said stub members being attached to the forward section of said space vehicle structure and extended into and electrically insulated from said rearward section.
Claim 3
Dependent Claim 44 words
A decoy missile as defined in claim 1 having four coaxial stub members, said stub members being attached in quadratic relationship to the outer periphery of the forward section of said space vehicle structure and extended into and electrically insulated from said rearward section.
Claim 4
Dependent Claim 51 words
A decoy missile comprising a space vehicle structure, a region of dielectric material disposed therein to define forward and rearward electrically isolated sections thereof, four arcuate antenna elements disposed on the outer periphery of said region of dielectric material, and means for electrically connecting orthogonal pairs of said arcuate antenna elements.
Claim 5
Dependent Claim 51 words
A decoy missile comprising a space vehicle structure, a region of dielectric material disposed therein to define forward and rearward electrically isolated sections thereof, four arcuate antenna elements disposed on the outer periphery of said region of dielectric material, and means for electrically connecting orthogonal pairs of said arcuate antenna elements.
Claim 6
Dependent Claim 64 words
A decoy missile comprising a space vehicle structure, a region of dielectric material disposed therein to define forward and rearward electrically isolated sections thereof, four arcuate antenna elements disposed on the outer periphery of said region of dielectric material, and a coaxial stub member attached to each said arcuate antenna element, said stub members being extended into and electrically insulated from said rearward section.
Claim 7
Dependent Claim 64 words
A decoy missile comprising a space vehicle structure, a region of dielectric material disposed therein to define forward and rearward electrically isolated sections thereof, four arcuate antenna elements disposed on the outer periphery of said region of dielectric material, and a coaxial stub member attached to each said arcuate antenna element, said stub members being extended into and electrically insulated from said rearward section.
Claim 8
Dependent Claim 64 words
A decoy missile comprising a space vehicle member, a region of dielectric material disposed on the rearward end of said space vehicle member, four arcuate antenna elements disposed on the outer periphery of said region of dielectric material, and a coaxial stub member attached to each said arcuate antenna element, said stub members being extended into and electrically insulated from said space vehicle member.
Claim 9
Dependent Claim 64 words
A decoy missile comprising a space vehicle member, a region of dielectric material disposed on the rearward end of said space vehicle member, four arcuate antenna elements disposed on the outer periphery of said region of dielectric material, and a coaxial stub member attached to each said arcuate antenna element, said stub members being extended into and electrically insulated from said space vehicle member.
Claim 10
Dependent Claim 106 words
A decoy missile comprising a space vehicle structure, a first region of dielectric material disposed therein to define forward and rearward elecrically isolated sections thereof, a second region of dielectric material disposed on the rearward end of said space vehicle structure, a first series of four arcuate antenna elements disposed on the outer periphery of said first region of dielectric material, a second series of four arcuate antenna elements disposed on the outer periphery of said second region of dielectric material, and a delay line means connecting each element of said first series of antenna elemEnts to an element of said second series of antenna elements.
Claim 11
Dependent Claim 106 words
A decoy missile comprising a space vehicle structure, a first region of dielectric material disposed therein to define forward and rearward elecrically isolated sections thereof, a second region of dielectric material disposed on the rearward end of said space vehicle structure, a first series of four arcuate antenna elements disposed on the outer periphery of said first region of dielectric material, a second series of four arcuate antenna elements disposed on the outer periphery of said second region of dielectric material, and a delay line means connecting each element of said first series of antenna elemEnts to an element of said second series of antenna elements.

References Cited (Backward Citations)

US2840819A Cited
US2625655A Cited
US3137852A Cited
US3230531A Cited
US3295132A Cited
US3413636A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-11 1977-08-13 1978-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-11 1981-08-13 1982-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-11 1985-08-13 1986-02-12 $7700.00 Window Closed / Lapsed

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