IP Library › Granted Patent US 12,562,496
Granted Patent B2
US 12,562,496 · App. 17/678,000 · Granted Feb 24, 2026

Meta-structure based reflectarrays for enhanced wireless applications

Inventors: Taha Shahvirdi Dizaj Yekan (San Diego, CA); Maha Achour (Encinitas, CA)
Assignee: BDCM A2 LLC
H01Q15/141H01Q1/42H01Q1/44H01Q3/20H01Q15/0086H01Q15/147H01Q15/16H01Q15/23
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Quick Facts
Patent No.
US 12,562,496
App. No.
17/678,000
Granted
Feb 24, 2026
Kind
B2
Abstract

Examples disclosed herein relate to reflectarray antenna for enhanced wireless applications. The reflectarray antenna has a ground conductive plane, a dielectric substrate coupled to the ground conductive plane, and a patterned conductive plane coupled to the dielectric substrate and comprising an array of cells to generate an antenna gain. In some aspects, each cell in the array of cells includes a reflector element with a predetermined custom configuration and configured to receive a radio frequency (RF) signal and to generate an RF return beam at a predetermined direction. Other examples disclosed herein relate to a portable reflectarray and a method of fabricating a reflectarray antenna.

Claims (14)

1 . A reflectarray for use in a millimeter wave wireless communication system, the reflectarray comprising:

an array of cells configured in a patterned conductive layer disposed on top of a dielectric substrate, each cell of the array of cells comprising a meta-structure (MTS) reflector element, wherein at least one cell of the array of cells comprises a hexagonal reflector element, at least one cell of the array of cells comprises a rectangular reflector element, at least one cell of the array of cells comprises a dipole reflector element; and

a removable cover that is non-permanently coupled to the patterned conductive layer.

2 . The reflectarray of claim 1 , wherein the customized MTS reflector element in each cell comprises a type, shape and dimensions based at least on a link budget.

3 . The reflectarray of claim 1 , further comprising the MTS reflector element having dimensions in a subwavelength range of the millimeter wave wireless communication system.

4 . The reflectarray of claim 1 , further comprising:

a mounting plane coupled to a first surface of a ground conductive plane, the ground conductive plane having a second surface coupled to the dielectric substrate, wherein the mounting plane of the reflectarray is non-permanently fastened to a surface via one or more fasteners.

5 . The reflectarray of claim 4 , further comprising: a rotation unit coupled to the mounting plane and configured to adjust an orientation of the reflectarray in one or more directions.

6 . The reflectarray of claim 5 , wherein the rotation unit is powered and controlled by a control circuit coupled to the rotation unit or a solar cell coupled to the rotation unit.

7 . The reflectarray of claim 6 , wherein each of the patterned conductive layer, the ground conductive plane and the dielectric substrate includes a bendable printed circuit board material that allows the reflectarray to conform its shape to a nonplanar surface when mounted to the non-planar surface.

8 . The reflectarray of claim 1 , wherein the removable cover includes content on an outer surface of the cover, the content comprising one or more of a message associated with roadway navigation or an advertisement.

9 . The reflectarray of claim 1 , wherein the patterned conductive layer comprises a plurality of subarrays configured to redirect the received RF signal in respective ones of a plurality of directions.

10 . A stackable reflectarray structure comprising a plurality of stackable reflectarrays having at least one layer of removable reflectarrays, wherein the plurality of stackable reflectarrays comprises the reflectarray of claim 1 .

11 . The reflectarray of claim 1 , further comprising a configuration of the array of cells such that incident signals are reflected to a given area, wherein the given area is a non-lineof-sight (NLOS) area.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2025
From: METAWAVE CORPORATION
To: BDCM A2 LLC
Reel/Frame 072795/0150 →
LIEN Recorded Jul 25, 2023
From: METAWAVE CORPORATION
To: TRANSACTIONSIP LLC
Reel/Frame 064372/0530 →
BROKER AGREEMENT Recorded Jul 24, 2023
From: METAWAVE CORPORATION
To: TRANSACTIONSIP LLC
Reel/Frame 064573/0555 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 4, 2022
From: SHAHVIRDI DIZAJ YEKAN, TAHA; ACHOUR, MAHA
To: METAWAVE CORPORATION
Reel/Frame 061309/0613 →
SECURITY INTEREST Recorded Mar 21, 2022
From: METAWAVE CORPORATION
To: BDCM A2 LLC
Reel/Frame 059454/0555 →
Continuity (3)
Continuation 16551361 · Aug 26, 2019
Provisional Application 62855688 · May 31, 2019
Related Publication 20220181786A1 · Jun 9, 2022
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