# US 10,873,136 B1 · Methods for formation of antenna array from sub-arrays

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- Number: US 10,873,136 B1
- Document ID: US10873136B1
- Status: Granted
- Kind: B1
- Application number: 16/845,498
- Filed: 2020-04-10
- Granted: 2020-12-22
- Earliest claimed: 2019-08-30
- Assignees: Tionesta, LLC
- Applicants: Tionesta, LLC
- Inventors: Paul Struhsaker; Paul Posner; Shayan Mohajer Hamidi; Amir Keyvan Khandani
- Web page: https://patentgrep.com/patent/US10873136B1

## CPC

- H01Q 21/0025: {Modular arrays}
- G01S 3/043: {Receivers}
- G01S 3/36: the separate antennas having differently-oriented directivity characteristics
- H01Q 1/125: {Means for positioning}
- H01Q 3/2605: {Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays}
- H01Q 3/36: with variable phase-shifters
- H01Q 21/065: {Patch antenna array}
- H01Q 25/002: {providing at least two patterns of different beamwidth; Variable beamwidth antennas}
- H04B 7/18513: {Transmission in a satellite or space-based system}
- H04B 7/18541: {for handover of resources}
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- H04B: TRANSMISSION

## Abstract

An antenna array system comprises a plurality of antenna elements arranged in an antenna array in a geometric shape. The antenna array system further includes a first sub-array that forms an interior of the antenna array and a second sub-array that forms an exterior of the antenna array. In addition, the first sub-array is a subset of the second sub-array. A number of antenna elements in the first sub-array is greater than a number of antenna elements in the second sub-array. The antenna array system determines an exact satellite location of a satellite within a solid angle of ambiguity using a first virtual pattern and a second virtual pattern.

## Claims

### Claim 1

An antenna array system, comprising:
a plurality of antenna elements arranged in an antenna array in a geometric shape;
a first sub-array that forms an interior of the antenna array; and
a second sub-array that forms an exterior of the antenna array,
wherein the first sub-array is a subset of the second sub-array,
wherein a number of antenna elements in the first sub-array is greater than a number of antenna elements in the second sub-array, and
wherein the antenna array system is used to perform a soft hand-off between an outgoing satellite leaving an area with line-of-sight connection to the antenna array system and an incoming satellite entering the area with line-of-sight connection to the antenna array system.

### Claim 2 (depends on 1)

The antenna array system according to claim 1, wherein the first sub-array and the second sub-array have identical geometric shapes.

### Claim 3 (depends on 1)

The antenna array system according to claim 1, wherein the first sub-array and the second sub-array have different geometric shapes.

### Claim 4 (depends on 1)

The antenna array system according to claim 1, wherein the plurality of antenna elements are disposed in the first sub-array and the second sub-array as circle, triangle, elliptical, or like geometrical shape.