# US 10,320,094 B2 · Multi-band dual polarization omni-directional antenna

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,320,094 B2
- Document ID: US10320094B2
- Status: Granted
- Kind: B2
- Application number: 15/396,321
- Filed: 2016-12-30
- Published: 2017-07-06
- Granted: 2019-06-11
- Earliest claimed: 2015-12-31
- Assignees: Lhc2 Inc
- Applicants: Lhc2 Inc
- Inventors: Royden M. Honda
- Web page: https://patentgrep.com/patent/US10320094B2

## CPC

- H01Q 21/24: Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)}
- H01Q 1/2291: {used in Bluetooth® or Wi-Fi® devices of Wireless Local Area Networks [WLAN] (H01Q1/241 takes precedence; WLAN in general H04W)}
- H01Q 5/40: Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q 15/14: Reflecting surfaces; Equivalent structures {(electromagnetic shields H01Q1/526)}
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

A horizontally polarized antenna may be mounted or operated with a vertical axis of the antenna being substantially perpendicular to a plane defined by the surface of the earth, and still emanate an electric field that is parallel to the surface of the earth. Use of horizontal polarization may improve communications reliability by reducing interference from predominantly vertically polarized signals in overlapping and adjacent frequency bands. Also, a vertically polarized antenna may be mounted or operated with a vertical axis of the antenna being substantially vertical to a plane defined by the surface of the earth, and still emanate an electric field that is vertical to the surface of the earth. A horizontally polarized antenna and a vertically polarized antenna mounted with their vertical axes collinearly aligned, but both antennae physically separated, provide a compact dual polarized unit emanating vertical and horizontal polarized electric fields.

## Claims

### Claim 1

A dual polarization antenna for wireless electromagnetic communications, the dual polarization antenna comprising:
a first antenna portion aligned with a second antenna portion along a vertical longitudinal axis of the dual polarization antenna, wherein;
the first antenna portion comprises a multiband flared aperture antenna that is configured to emanate a horizontally polarized substantially omni-directional electric field perpendicular to the vertical longitudinal axis of the antenna, and
the second antenna portion comprises a parallel plate multiband antenna that is configured to emanate a vertically polarized substantially omni-directional electric field parallel to the vertical longitudinal axis of the antenna.

### Claim 2 (depends on 1)

The dual polarization antenna of claim 1, further comprising a signal input cable adjacent to the second antenna portion, wherein the first antenna portion and the second antenna portion are separated and facing each other with an axis of the first antenna portion being collinear with an axis of the second antenna portion.

### Claim 3 (depends on 2)

The dual polarization antenna of claim 2, wherein each of the multiband flared aperture antenna and the parallel plate multiband antenna has a circular perimeter.

### Claim 4 (depends on 1)

The dual polarization antenna of claim 1, further comprising a signal input cable adjacent to the first antenna portion, wherein the first antenna portion and the second antenna portion are separated and facing each other with an axis of the first antenna portion being collinear with an axis of the second antenna portion.

### Claim 5 (depends on 4)

The dual polarization antenna of claim 4, wherein each of the multiband flared aperture antenna and the parallel plate multiband antenna has a circular perimeter.