# US 8,274,438 B2 · Mobile wireless communications device including an electrically conductive, electrically floating element and related methods

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- Number: US 8,274,438 B2
- Document ID: US8274438B2
- Status: Granted
- Kind: B2
- Application number: 13/304,887
- Filed: 2011-11-28
- Published: 2012-03-22
- Granted: 2012-09-25
- Earliest claimed: 2006-08-29
- Assignees: Research In Motion Limited
- Inventors: Yihong Qi; Ying Tong Man; Krystyna Bandurska
- Web page: https://patentgrep.com/patent/US8274438B2

## CPC

- H01Q 1/245: {with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure}
- H01Q 1/243: {with built-in antennas}
- 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: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

A mobile wireless communications device may include a portable housing having a surface, a printed circuit board (PCB) carried by the portable housing, and wireless transceiver circuitry carried by the PCB. The device may further include an antenna connected to the transceiver, and at least one electrically floating, electrically conductive, antenna beam shaping element secured to the surface of the portable housing for directing a beam pattern of the antenna.

## Claims

### Claim 1

A mobile wireless communications device comprising:
a portable housing having an exterior surface;
an adhesive layer coupled to the exterior surface of said portable housing; a
printed circuit board (PCB) carried by said portable housing;
wireless transceiver circuitry carried by said PCB;
an antenna connected to said wireless transceiver circuitry; and
at least one electrically floating, electrically conductive, antenna beam shaping element carried by said adhesive layer, said at least one electrically floating, electrically conductive, antenna beam shaping element and said antenna entirely not being vertically overlapping.

### Claim 2 (depends on 1)

The mobile wireless communications device of claim 1 wherein said at least one beam shaping element comprises at least one generally rectangular metal layer.

### Claim 3 (depends on 1)

The mobile wireless communications device of claim 1 wherein the exterior surface of said portable housing has a color, and further comprising a cover layer over said at least one beam shaping element having the color of said portable housing.

### Claim 4 (depends on 1)

The mobile wireless communications device of claim 1 wherein said PCB comprises a top portion and a bottom portion, and wherein said antenna is carried by the bottom portion of said PCB.

### Claim 5 (depends on 1)

The mobile wireless communications device of claim 1 wherein said at least one beam shaping element comprises a plurality thereof.

### Claim 6 (depends on 1)

The mobile wireless communications device of claim 1 wherein said at least one beam shaping element is positioned substantially parallel to a longitudinal axis of said portable housing.

### Claim 7 (depends on 1)

The mobile wireless communications device of claim 1 wherein said wireless transceiver circuitry comprises a cellular transceiver.

### Claim 8

A mobile wireless communications device comprising:
a portable housing having an interior surface;
an adhesive layer coupled to the interior surface of said portable housing a printed circuit board (PCB) carried by said portable housing;
wireless transceiver circuitry carried by said PCB;
an antenna connected to said wireless transceiver circuitry; and
at least one electrically floating, electrically conductive, antenna beam shaping element carried by said adhesive layer, said at least one electrically floating, electrically conductive, antenna beam shaping element and said antenna entirely not being vertically overlapping.

### Claim 9 (depends on 8)

The mobile wireless communications device of claim 8 wherein said at least one beam shaping element comprises at least one generally rectangular metal layer.

### Claim 10 (depends on 8)

The mobile wireless communications device of claim 8 wherein said PCB comprises a top portion and a bottom portion, and wherein said antenna is carried by the bottom portion of said PCB.

### Claim 11 (depends on 8)

The mobile wireless communications device of claim 8 wherein said at least one beam shaping element comprises a plurality thereof.

### Claim 12 (depends on 8)

The mobile wireless communications device of claim 8 wherein said at least one beam shaping element is positioned substantially parallel to a longitudinal axis of said portable housing.

### Claim 13 (depends on 8)

The mobile wireless communications device of claim 8 wherein said wireless transceiver circuitry comprises a cellular transceiver.

### Claim 14

A method for making a mobile wireless communications device comprising:
positioning a printed circuit board (PCB) carrying wireless transceiver circuitry within a portable housing, the portable housing having an exterior surface; and
adhesively securing at least one electrically floating, electrically conductive, antenna beam shaping element to the exterior surface of the portable housing, the at least one electrically floating, electrically conductive beam shaping element and an antenna coupled to the wireless transceiver circuitry entirely not being vertically overlapping.

### Claim 15 (depends on 14)

The method of claim 14 wherein the at least one beam shaping element comprises at least one generally rectangular metal layer.

### Claim 16 (depends on 14)

The method of claim 14 wherein the exterior surface of the portable housing has a color, and further comprising positioning a cover layer over the at least one beam shaping element having the color of the portable housing.

### Claim 17 (depends on 14)

The method of claim 14 wherein the at least one beam shaping element comprises a plurality thereof.

### Claim 18 (depends on 14)

The method of claim 14 wherein the at least one beam shaping element is positioned substantially parallel to a longitudinal axis of the portable housing.

### Claim 19

A method for making a mobile wireless communications device comprising:
positioning a printed circuit board (PCB) carrying wireless transceiver circuitry within a portable housing, the portable housing having an interior surface; and
adhesively securing at least one electrically floating, electrically conductive, antenna beam shaping element to the interior surface of the portable housing, the at least one electrically floating, electrically conductive beam shaping element and an antenna coupled to the wireless transceiver circuitry entirely not being vertically overlapping.

### Claim 20 (depends on 19)

The method of claim 19 wherein the at least one beam shaping element comprises at least one generally rectangular metal layer.

### Claim 21 (depends on 19)

The method of claim 19 wherein the at least one beam shaping element comprises a plurality thereof.

### Claim 22 (depends on 19)

The method of claim 19 wherein the at least one beam shaping element is positioned substantially parallel to a longitudinal axis of the portable housing.
