# US 8,542,153 B2 · Slot halo antenna device

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- Number: US 8,542,153 B2
- Document ID: US8542153B2
- Status: Granted
- Kind: B2
- Application number: 12/619,506
- Filed: 2009-11-16
- Published: 2011-05-19
- Granted: 2013-09-24
- Earliest claimed: 2009-11-16
- Assignees: Skyware Antennas, Inc.
- Applicants: Roger Owens
- Inventors: Roger Owens
- Web page: https://patentgrep.com/patent/US8542153B2

## CPC

- H01Q 13/106: {Microstrip slot antennas (patch antenna elements H01Q9/0407)}
- H01Q 1/2233: {used in consumption-meter devices, e.g. electricity, gas or water meters}
- H01Q 1/52: Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure (absorbing means H01Q17/00)
- H01Q 13/10: Resonant slot antennas
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

An antenna of the present disclosure has a housing having a shallow cavity in a top of the housing and a shallow cavity in a bottom of the housing. The antenna further has a substantially circular radiating element disposed in the shallow cavity on the top of the housing, the radiating element having an arc shape slot. In addition, the antenna has a substantially circular parasitic element disposed in the shallow cavity on the bottom of the housing.

## Claims

### Claim 1

An antenna, comprising:
a housing having a top shallow cavity in a top of the housing and a bottom shallow cavity in a bottom of the housing;
a substantially circular radiating element disposed in the top shallow cavity on the top of the housing, the radiating element having an arc-shape slot;
a substantially circular parasitic element disposed in the bottom shallow cavity on the bottom of the housing;
a tube affixed to the bottom of the housing; and
a substantially circular protrusion that extends from the top of the housing, the protrusion having an opening;
wherein a shield of the coaxial cable is electrically connected to the radiating element on a first side of the slot.

### Claim 2

An antenna, comprising:
a housing having a top shallow cavity in a top of the housing and a bottom shallow cavity in a bottom of the housing;
a substantially circular radiating element disposed in the top shallow cavity on the top of the housing, the radiating element having an arc-shape slot;
a substantially circular parasitic element disposed in the bottom shallow cavity on the bottom of the housing;
a tube affixed to the bottom of the housing, wherein the tube is affixed to a center of the bottom of the housing;
wherein a coaxial cable runs through the tube and through the opening in the center of the protrusion; and
wherein a wire of the coaxial cable is electrically connected to the radiating element on a second side of the slot.

### Claim 3 (depends on 1)

The antenna of claim 1, wherein the coaxial cable is connected to the radiating element at a point that is 198 degrees from an end of the slot.

### Claim 4

An antenna, comprising;
a housing having a top shallow cavity in a top of the housing and a bottom shallow cavity in a bottom of the housing;
a substantially circular radiating element disposed in the top shallow cavity on the top of the housing, the radiating element having an arc-shape slot;
a substantially circular parasitic element disposed in the bottom shallow cavity on the bottom of the housing;
wherein the bottom of the housing has at least two openings;
a tube affixed to the bottom of the housing, wherein the tube is affixed to a center of the bottom of the housing; and
wherein a balun having a first and second trace runs through the tube.

### Claim 5 (depends on 4)

The antenna of claim 4, wherein the first trace is electrically connected to the radiating element on a first side of the slot through the first opening in the housing.

### Claim 6 (depends on 5)

The antenna of claim 5, wherein the second trace is electrically connected to the radiating element on a second side of the slot through the second opening in the housing.

### Claim 7 (depends on 4)

The antenna of claim 4, wherein the balun is high impedance connected to the radiating element.

### Claim 8 (depends on 4)

The antenna of claim 4, wherein the balun is connected to the radiating element at a point that is 135 degrees from an end of the slot.