Low-cost one-dimensional electromagnetic band gap waveguide phase shifter based ESA horn antenna
First Claim
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1. A one-dimensional electromagnetic band gap (EBG) waveguide phase shifter electronically scanned array (ESA) horn antenna comprising:
- a linear array of EBG waveguide phase shifters for scanning and radiating a beam;
a linear array feed to feed the linear array of ERG waveguide phase shifters; and
a horn for shaping radiation from the linear array of EBG waveguide phase shifters.
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Abstract
A one-dimensional electromagnetic band gap (EBG) waveguide phase shifter electronically scanned array (ESA) horn antenna utilizes a linear array of EBG waveguide phase shifters for scanning and radiating a beam. A linear array feed feeds the linear array of EBG waveguide phase shifters. A horn directs radiation from the linear array of EBG waveguide phase shifters. Each of the EBG waveguide phase shifters is a waveguide with vertical and horizontal sidewalls. EBG devices are located on the vertical waveguide walls to shift phase to scan the beam.
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Citations
20 Claims
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1. A one-dimensional electromagnetic band gap (EBG) waveguide phase shifter electronically scanned array (ESA) horn antenna comprising:
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a linear array of EBG waveguide phase shifters for scanning and radiating a beam; a linear array feed to feed the linear array of ERG waveguide phase shifters; and a horn for shaping radiation from the linear array of EBG waveguide phase shifters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A one-dimensional electromagnetic band gap (EBG) waveguide phase shifter electronically scanned array (ESA) horn antenna for scanning and radiating a beam comprising:
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the horn for shaping the scanned and radiated beam a one-dimensional ESA EBG waveguide phase shifting linear array horn feed for feeding the horn the scanned and radiated beam wherein the one-dimensional ESA EBG waveguide phase shifting linear array horn feed comprises a linear array of EBG waveguide radiating elements; and a linear array feed for feeding the one-dimensional ESA EBG waveguide phase shifting linear array horn feed. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A one-dimensional electromagnetic band gap (EBG) waveguide phase shifter electronically scanned array (ESA) horn antenna comprising a linear array of EBG waveguide phase shifters for scanning and radiating a beam;
- a linear array feed to feed the linear array of EBG waveguide phase shifters; and
a horn for directing radiation from the linear array of EBG waveguide phase shifters wherein each of the EBG waveguide phase shifters comprises;a waveguide having vertical and horizontal sidewalls; and EBG devices on the vertical sidewalls wherein the EBG devices on the vertical sidewalls phase shift to scan the beam said EBG devices each comprise; a dielectric substrate; a plurality of conductive strips periodically located on a surface of the dielectric substrate; a ground plane located on a surface of the dielectric substrate opposite the plurality of conductive strips; and a plurality of reactive devices placed between the conductive strips to vary reactance between the conductive strips thereby varying a surface impedance of the EBG devices to shift a phase.
- a linear array feed to feed the linear array of EBG waveguide phase shifters; and
Specification