# US 2015/0091673 A1 · Leaky feeder arrangement

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

- Number: US 2015/0091673 A1
- Document ID: US20150091673A1
- Status: Published application
- Kind: A1
- Application number: 14/389,735
- Filed: 2012-04-02
- Published: 2015-04-02
- Earliest claimed: 2012-04-02
- Assignees: Telefonaktiebolaget L M Ericsson (publ)
- Inventors: Henrik Asplund; Jan-Erik Berg; Jonas Medbo
- Web page: https://patentgrep.com/patent/US20150091673A1

## CPC

- H01Q 13/203: {Leaky coaxial lines}
- H01P 3/06: Coaxial lines
- H01Q 1/007: {specially adapted for indoor communication}
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B)

## Abstract

A leaky co-axial cable arrangement, including a co-axial cable, a plurality of radiation slots arranged on the co-axial cable and an activation arrangement configured for affecting predetermined regions on the cable to selectively activate or deactivate at least one of the plurality of radiation slots to provide the leaky co-axial cable arrangement.

## Claims

### Claim 1

A leaky co-axial cable arrangement, comprising:
a co-axial cable;
a plurality of radiation slots arranged on said co-axial cable; and
an activation arrangement configured for affecting predetermined regions on said cable to selectively activate or deactivate at least one of said plurality of radiation slots to provide said leaky co-axial cable arrangement.

### Claim 2 (depends on 1)

The arrangement according to claim 1, wherein said activation arrangement is reversible.

### Claim 3 (depends on 2)

The arrangement according to claim 2, wherein said activation arrangement is further configured for affecting said predetermined regions on said cable to deactivate previously activated slots.

### Claim 4 (depends on 1)

The arrangement according to claim 1, wherein said activation arrangement comprises an outer removable conductor covering said inactive radiation slots.

### Claim 5 (depends on 1)

The arrangement according to claim 1, wherein said activation arrangement comprises a plurality of conductive sheets covering said radiation slots, and said plurality of conductive sheets are configured to change at least one of shape, size, or orientation in order to activate or deactivate said slots.

### Claim 6 (depends on 1)

The arrangement according to claim 1, wherein said activation arrangement comprises a conductive sheet configured to be breakable to activate or deactivate said radiation slots.

### Claim 7 (depends on 1)

The arrangement according to claim 1, wherein said activation arrangement comprises a deformable outer casing, which is configured for providing said radiation slots through deformation.

### Claim 8 (depends on 1)

The arrangement according to claim 1, wherein said activation arrangement comprises a plurality of layered removable sheets of material.

### Claim 9 (depends on 8)

The arrangement according to claim 8, wherein each of said plurality of layered removable sheets of material are configured with a respective arrangement of slots overlapping at least some of said plurality of radiation slots.

### Claim 10 (depends on 1)

The cable arrangement according to claim 1, wherein said activation arrangement comprises an absorbing tape configured for adapting the impedance of said leaky co-axial cable arrangement.

### Claim 11 (depends on 1)

The cable arrangement according to claim 1, wherein said co-axial cable is configured to be connectable to at least another co-axial cable.

### Claim 12 (depends on 1)

The cable arrangement according to claim 1, wherein said plurality of radiating slots comprise both active and inactive radiating slots.

### Claim 13 (depends on 1)

The cable arrangement according to claim 1, wherein said plurality of radiating slots comprise only active or only inactive radiating slots.

### Claim 14

A method of providing a leaky co-axial cable arrangement, the method comprising:
selectively activating or deactivating at least one of a plurality of radiation slots arranged on a co-axial cable.

### Claim 15 (depends on 14)

The method according to claim 14, wherein said method further comprises selectively deactivating at least one previously activated slot.

### Claim 16 (depends on 14)

The method according to claim 14, wherein said method includes the further step if installing said co-axial cable in a location prior to performing said activating or de-activating step.