US 2026/0018804 A1 · LEAKY WAVE BASED DUAL POLARIZED HOLOGRAPHIC ANTENNA DESIGN FOR LOW COMPLEXITY JOINT PHASED TIME ARRAY INTEGRATION

Abstract

Joint phase time array transmission employs dual polarized holographic beamforming antenna rather than phased array antenna. Every antenna element including an array of holographic beamforming unit cells requires only a single power amplifier between the antenna element and a corresponding delay element. Dual polarization is provided by antenna tiles each with parallel arrays of horizontal slot holographic beamforming unit cells rotated relative to each other, or by antenna elements of 45° slot holographic beamforming unit cells alternated on an antenna panel with 135° slot holographic beamforming unit cells. Improvements in transmit power and efficiency are achieved over joint phase time array transmission with phased array antenna, with fewer phase shifters and other active components per beam steering antenna element.

Claims20

Dependent claims

A method comprising:

constructing a one-dimensional array of a number of unit cells each having unit cell layout with a resonance frequency meeting a requirement for leaky wave antenna operation of a dual polarized holographic beamforming antenna;
determining that a load attenuation for the one-dimensional array meets one or more efficiency requirements;
determining one or more parameters including capacitance for achieving a desired beamforming steering range and a desired beamforming steering resolution with the one-dimensional array;
and
scaling the one-dimensional array to form a two-dimensional, dual polarized holographic beamforming antenna.

2 more elements

An apparatus comprising:

a first holographic beamforming antenna element having a first polarization, the first holographic beamforming antenna element comprising a linear array of two or more first holographic beamforming unit cells;
a second holographic beamforming antenna element having a second polarization different than the first polarization, the second holographic beamforming antenna element comprising a linear array of two or more second holographic beamforming unit cells;
a single first power amplifier configured to amplify signals to each of the first holographic beamforming unit cells within the first holographic beamforming antenna element;
and
a single second power amplifier configured to amplify signals to each of the second holographic beamforming unit cells within the second holographic beamforming antenna element,
wherein the first holographic beamforming antenna element and the second holographic beamforming antenna element are configured to transmit separate beams.

3 more elements

An apparatus comprising:

a joint phased time array transmit circuit including a first power amplifier, a second power amplifier, a first delay element, and a second delay element, wherein the first power amplifier is configured to amplify a single first signal based on an output of the first delay element and the second power amplifier is configured to amplify a single second signal based on an output of the second delay element;
a first holographic beamforming antenna element having a first polarization, the first holographic beamforming antenna element comprising a linear array of two or more first holographic beamforming unit cells each configured to receive the single first signal;
and
a second holographic beamforming antenna element having a second polarization different than the first polarization, the second holographic beamforming antenna element comprising a linear array of two or more second holographic beamforming unit cells each configured to receive the single second signal,
wherein the joint phased time array transmit circuit is configured to transmit a plurality of separate beams using the first holographic beamforming antenna element and the second holographic beamforming antenna element.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

19/069,189Filed 3 Mar 2025

Priority

15 Jul 2024

Published

15 Jan 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01Q 25/001
Antennas or antenna systems providing at least two radiating patterns: crossed polarisation dual antennas
H01Q 3/34
Varying the relative phase between the radiating elements of an array: by electrical means
H01Q 5/314
Individual or coupled radiating elements, each element being fed in an unspecified way: using frequency dependent circuits or components, e.g.…
H01Q 13/20
Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a…:…

Leaky wave based dual polarized holographic antenna design for low complexity joint phased time array integration

Life of this patent

Leaky wave based dual polarized holographic antenna design for low complexity joint phased time array integration

Life of this patent

Abstract

Claims20