# US 2016/0261035 A1 · Three dimensional antenna and floating fence

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- Number: US 2016/0261035 A1
- Document ID: US20160261035A1
- Status: Published application
- Kind: A1
- Application number: 14/636,272
- Filed: 2015-03-03
- Published: 2016-09-08
- Earliest claimed: 2015-03-03
- Assignees: NovAtel Inc.
- Applicants: NovAtel Inc.
- Inventors: Ahmad Chamseddine
- Web page: https://patentgrep.com/patent/US20160261035A1

## CPC

- H01Q 1/36: Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence)
- H01Q 1/48: Earthing means; Earth screens; Counterpoises
- H01Q 9/40: Element having extended radiating surface
- H01Q 19/00: Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic {(combination of horns with slotted waveguide array H01Q13/0233)}
- H01Q 19/021: {Means for reducing undesirable effects}
- 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: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

A three-dimensional antenna and a floating fence secondary radiator is provided. The three-dimensional antenna comprises of a plurality of floating curvatures separated by capacitive coupling slots. The floating fence comprises a plurality of metallic elements organized around the primary antenna and configured to serve as a secondary radiator to provide beam shaping.

## Claims

### Claim 1

An antenna comprising:
a set of curvatures arranged to form a first three-dimensional shape;
a set of capacitive coupling slots arranged between the set of curvatures; and
a ground plane.

### Claim 2 (depends on 1)

The antenna of claim 1 wherein the first three-dimensional shape comprises a substantially hemispherical shape.

### Claim 3 (depends on 1)

The antenna of claim 1 wherein the set of curvatures comprises four curvatures.

### Claim 4 (depends on 1)

The antenna of claim 1 wherein the set of curvatures are located a predefined distance from the ground plane.

### Claim 5 (depends on 1)

The antenna of claim 1 wherein each of the set of curvatures further comprises a feed point.

### Claim 6 (depends on 5)

The antenna of claim 5 wherein the feed points are located at an approximate midpoint of each curvature.

### Claim 7 (depends on 1)

The antenna of claim 1 wherein each of the set of curvatures further comprises one or more cutouts.

### Claim 8 (depends on 1)

The antenna of claim 1 further comprising a floating fence encircling the set of floating curvatures, wherein the floating fence comprises:
a plurality of metallic elements arranged in a second three-dimensional shape; and
a plurality of non-conductive spacing elements configured to support the set of radiating elements.

### Claim 9 (depends on 8)

The antenna of claim 8 wherein the second three-dimensional shape comprises a ring shape.

### Claim 10 (depends on 8)

The antenna of claim 8 wherein the metallic elements have a substantially rectangular shape.

### Claim 11 (depends on 8)

The antenna of claim 8 wherein the floating fence is electrically separated from the ground plane.

### Claim 12 (depends on 8)

The antenna of claim 8 wherein the metallic elements have a substantially trapezoidal shape.

### Claim 13 (depends on 1)

The antenna of claim 1 wherein the set of curvatures are sized based on a set of desired wavelengths for the antenna.

### Claim 14

A parasitic array comprising:
a plurality of metallic elements arranged in a first three-dimensional shape; and
a plurality of non-conductive spacing elements configured to support the set of radiating elements; and
s a primary radiator located substantially centered in the first three-dimensional shape.

### Claim 15 (depends on 14)

The parasitic array of claim 14 wherein the first three-dimensional shape comprises a ring.

### Claim 16 (depends on 4)

The parasitic array of claim 4 wherein the metallic elements are substantially trapezoidal in shape.

### Claim 17 (depends on 14)

The parasitic array of claim 14 wherein the primary radiator further comprises:
a set of curvatures arranged to form a second three-dimensional shape;
a set of capacitive coupling slots arranged between the set of curvatures; and
a ground plane.