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US 9,865,934 B2Granted
Ultra-wideband extremely low profile wide angle scanning phased array with compact balun and feed structure
OwnerKubilay Sertel, Jonathan Doaneinventors
Life of this patent
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Abstract
A phased array antenna comprising a dielectric superstrate material, a ground plane material, a plurality of dipole structures located between the superstrate and ground plane materials, and a plurality of balun and matching networks in electrical communication with the plurality of dipole structures, wherein the phased array antenna is adapted to achieve a bandwidth of at least about 7:1.
Claims21
A phased array antenna comprising:
- a ground plane structure;
- a plurality of dipole structures that each have a respective reactance and that are tightly coupled and adapted to function as an antenna, located above the ground plane structure;
- and
- a plurality of balun and matching networks that are each de-tuned and have a respective reactance and that are located such that the balun and matching networks are respectively in electrical communication with and are adapted to compensate for said respective reactances of the dipole structures, and each is contained within a same respective planar space available to the respective dipole structure such that each said planar space is substantially perpendicular to said ground plane structure.
1 more element
A method of creating a phased array antenna, comprising the steps of:
- positioning a plurality of dipole antenna structures above a ground plane structure such that said dipole antenna structures are tightly coupled, each said dipole antenna structure having a respective reactance;
- and
- providing a plurality of balun and matching networks that are each de-tuned and have a respective reactance, said balun and matching networks in electrical communication with and compensating for said respective reactances of said dipole antenna structures, where each such network is contained within a same respective planar space available to the dipole antenna structure with which it is in electrical communication such that each said planar space is substantially perpendicular to said ground plane structure.
A phased array antenna comprising:
- a dielectric superstrate formed from material with a dielectric constant in a range of about 1.5-6;
- a ground plane structure positioned coplanar to the dielectric superstrate and of such size and alignment that each edge of the ground plane structure is aligned with a corresponding edge of the dielectric superstrate;
- a plurality of dipole structures formed into a tightly coupled array and positioned above the ground plane structure and below the dielectric superstrate such that the phased array impedance is adapted to be in the range of about 25-200 ohm;
- and
- a plurality of balun and matching networks, each de-tuned and in electrical communication with at least one dipole structure, wherein the balun and matching networks are adapted have an input impedance in a range of about 25-200 ohm;
- wherein the balun and matching networks are respectively in electrical communication with and are adapted to compensate for respective impedances of the dipole structures, and each is printed on a same respective printed circuit board substrate as the respective dipole structure such that each said printed circuit board substrate is substantially perpendicular to said ground plane structure and said dielectric superstrate.
3 more elements
Dependencies are inferred from the claim text.