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US4740793A Expired / Lapsed US ⏱️ 0.0 years remaining

Antenna elements and arrays

Assignee: ITT Gilfillan Inc
•
Filing: 1986-10-20
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Granted: 1988-04-26
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Expires: 2006-10-20
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Abstract

Abstract An antenna element including a microstrip radiating element having a microstrip feed line and a ground plane on opposite sides of a substrate, with at least one of a plurality as resonators on the same side of the substrate as the microstrip feed line, and a dipole radiator having an increased bandwidth and insulated from the feed line and from the plurality of resonators.

Inventors

  • 👤 Ronald I. Wolfson
  • 👤 William G. Sterns

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 06:35
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/065; H01Q9/0407; H01Q9/045; H01Q9/0457

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 147 words
A radiating element comprising, in combination: a microstrip including a ground plane first conductor; a dielectric microstrip substrate having first and second opposite sides, said first substrate side being bonded to said ground plane first conductor; a plurality of conductive resonators resident intermediate a microstrip feed line and a conductive dipole, said microstrip feed line in electrical communication with said plurality of conductive resonators, said plurality of conductive resonators and said microstrip feed line being bonded to said second substrate side; a dielectric spacer having first and second opposite sides, said first spacer side being bonded to and over said second substrate side, to and over said plurality of conductive resonators and to and over said microstrip feed line; said conductive dipole being bonded to said dielectric spacer second side and spaced from said plurality of conductive resonators for optimizing bandwidth and efficiency of the radiating element.
Claim 2
Dependent Claim 147 words
A radiating element comprising, in combination: a microstrip including a ground plane first conductor; a dielectric microstrip substrate having first and second opposite sides, said first substrate side being bonded to said ground plane first conductor; a plurality of conductive resonators resident intermediate a microstrip feed line and a conductive dipole, said microstrip feed line in electrical communication with said plurality of conductive resonators, said plurality of conductive resonators and said microstrip feed line being bonded to said second substrate side; a dielectric spacer having first and second opposite sides, said first spacer side being bonded to and over said second substrate side, to and over said plurality of conductive resonators and to and over said microstrip feed line; said conductive dipole being bonded to said dielectric spacer second side and spaced from said plurality of conductive resonators for optimizing bandwidth and efficiency of the radiating element.
Claim 3
Dependent Claim 228 words
A radiating element comprising, in combination: a microstrip including a ground plane first conductor; a dielectric microstrip substrate having first and second opposite sides, said first substrate side being bonded to said ground plane first conductor; a plurality of conductive resonators resident intermediate a plurality of microstrip feed lines and a conductive dipole, said microstrip feed lines in electrical contact with said plurality of conductive resonators, said plurality of conductive resonators and said microstrip feed lines being bonded to said second substrate side; a dielectric spacer having first and second opposite sides, said first spacer side being bonded to and over said second substrate side, to and over said plurality of conductive resonators and to and over said microstrip feed lines; said conductive dipole being bonded to said dielectric spacer second side and spaced from said plurality of conductive resonators for optimizing bandwidth and efficiency of the radiating element; a plurality of coaxial cables each having an inner and an outer conductor for providing an input to said radiating element; means for grounding a first end of a first of said conductive resonators to said ground plane first conductor, and means for connecting said coaxial cable inner conductor to said first of said plurality of conductive resonators at a distance near said grounded first end, said first of said plurality of conductive resonators being a quarter wavelength resonator.
Claim 4
Dependent Claim 228 words
A radiating element comprising, in combination: a microstrip including a ground plane first conductor; a dielectric microstrip substrate having first and second opposite sides, said first substrate side being bonded to said ground plane first conductor; a plurality of conductive resonators resident intermediate a plurality of microstrip feed lines and a conductive dipole, said microstrip feed lines in electrical contact with said plurality of conductive resonators, said plurality of conductive resonators and said microstrip feed lines being bonded to said second substrate side; a dielectric spacer having first and second opposite sides, said first spacer side being bonded to and over said second substrate side, to and over said plurality of conductive resonators and to and over said microstrip feed lines; said conductive dipole being bonded to said dielectric spacer second side and spaced from said plurality of conductive resonators for optimizing bandwidth and efficiency of the radiating element; a plurality of coaxial cables each having an inner and an outer conductor for providing an input to said radiating element; means for grounding a first end of a first of said conductive resonators to said ground plane first conductor, and means for connecting said coaxial cable inner conductor to said first of said plurality of conductive resonators at a distance near said grounded first end, said first of said plurality of conductive resonators being a quarter wavelength resonator.
Claim 5
Dependent Claim 43 words
The invention as defined in claim 2, wherein said first of said plurality of conductive resonators includes a tap point such that the loaded Q of said first of said plurality of conductive resonators is equal to the Q of said conductive dipole.
Claim 6
Dependent Claim 76 words
The invention as defined in claim 2, wherein said ground plane first conductor, said dielectric microstrip substrate and said first of said plurality of conductive resonators include a plurality of three respective registering holes at said first end of said first of said plurality of conductive resonators, and conductive means extending through all three of said plurality of registering holes electrically connecting said ground plane first conductor and said first of said plurality of conductive resonators.
Claim 7
Dependent Claim 45 words
The invention as defined in claim 2 further including a means for connecting each of said coaxial cable inner conductor to said first of said plurality of conductive resonators at a distance from said first end of said first of said plurality of conductive resonators.
Claim 8
Dependent Claim 37 words
The invention as defined in claim 2, wherein said plurality of conductive resonators and microstrip feed lines are each thin and long in comparison to the widths of said plurality of conductive resonators and microstrip feed lines.
Claim 9
Dependent Claim 184 words
A radiating element comprising: a microstrip including a ground plane first conductor; a dielectric microstrip substrate having first and second opposite sides, said first substrate side being bonded to said first conductor; a conductive resonator resident intermediate a microstrip feed line and a conductive dipole, said microstrip feed line spaced from said conductive resonator, said conductive resonator and said microstrip feed line being bonded to said second substrate side; a dielectric spacer having first and second opposite sides, said first spacer side being bonded to and over said second substrate side, to and over said conductive resonator and to and over said microstrip feed line; said conductive dipole being bonded to said dielectric spacer second side and spaced from said conductive resonator for optimizing bandwidth and efficiency of the radiating element; a coaxial cable having an inner and an outer conductor for providing an input to said radiating element: means for grounding a first end of said conductive resonator to said first conductor: and means for connecting said coaxial cable inner conductor to said conductive resonator at a distance near said grounded first end.
Claim 10
Dependent Claim 184 words
A radiating element comprising: a microstrip including a ground plane first conductor; a dielectric microstrip substrate having first and second opposite sides, said first substrate side being bonded to said first conductor; a conductive resonator resident intermediate a microstrip feed line and a conductive dipole, said microstrip feed line spaced from said conductive resonator, said conductive resonator and said microstrip feed line being bonded to said second substrate side; a dielectric spacer having first and second opposite sides, said first spacer side being bonded to and over said second substrate side, to and over said conductive resonator and to and over said microstrip feed line; said conductive dipole being bonded to said dielectric spacer second side and spaced from said conductive resonator for optimizing bandwidth and efficiency of the radiating element; a coaxial cable having an inner and an outer conductor for providing an input to said radiating element: means for grounding a first end of said conductive resonator to said first conductor: and means for connecting said coaxial cable inner conductor to said conductive resonator at a distance near said grounded first end.
Claim 11
Dependent Claim 30 words
The invention as defined in claim 7, wherein said conductive resonator comprises a tap point such that the loaded Q thereof is equal to the Q of said conductive dipole.
Claim 12
Dependent Claim 52 words
The invention as defined in claim 7, wherein said first conductor, said dielectric microstrip substrate and said conductive resonator have three respective registering holes at said first end of said conductive resonator, and conductive means extending through all three of said registering holes electrically connecting said first conductor and said conductive resonator.
Claim 13
Dependent Claim 25 words
The invention as defined in claim 9, wherein said conductive resonator and said microstrip feed line are thin and long in comparison to their widths.

References Cited (Backward Citations)

US4162499A Cited
US4242685A Cited
US4415900A Cited
US4554549A Cited
US4623893A Cited
US4651159A Cited
US4660047A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-04-26 1991-10-26 1992-04-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-04-26 1995-10-26 1996-04-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-04-26 1999-10-26 2000-04-26 $7700.00 Window Closed / Lapsed

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