# US 9,520,652 B2 · Wideband high gain antenna for multiband employment

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- Number: US 9,520,652 B2
- Document ID: US9520652B2
- Status: Granted
- Kind: B2
- Application number: 14/571,184
- Filed: 2014-12-15
- Published: 2015-04-09
- Granted: 2016-12-13
- Earliest claimed: 2008-06-24
- Assignees: Mesh City Wireless
- Applicants: George Samuel
- Inventors: George Samuel
- Web page: https://patentgrep.com/patent/US9520652B2

## CPC

- H01Q 13/18: the slot being backed by, or formed in boundary wall of, a resonant cavity (longitudinally slotted cylinder H01Q13/12 ){; Open cavity antennas}
- H01Q 1/243: {with built-in antennas}
- H01Q 1/246: {specially adapted for base stations}
- H01Q 1/523: {between antennas of an array}
- H01Q 13/085: {Slot-line radiating ends}
- H01Q 21/0087: {Apparatus or processes specially adapted for manufacturing antenna arrays (manufacturing waveguides H01P11/00)}
- H01Q 21/064: {using horn or slot aerials (slotted waveguides arrays H01Q21/005)}
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

An antenna element employable singularly or in an array and configured for concurrent RF transmission and receipt on a plurality of frequencies concurrently. The element is formed of conductive material on a substrate by a pair of substantially identical horns extending in opposite directions to distal tips. A cavity formed between the horns narrows to a narrowest point prior to curving. The element is capable of wideband RF communication on any frequency between a low frequency defined by the distance between the distal tips to a highest frequency defined by the narrowest point of the cavity. The antenna is especially well adapted for portable devices such as smartphones where concurrent cellular, Wi-Fi, and bluetooth communications may be accomplished with a single element. A dielectric planar substrate positioned between the antenna element and a tethered device is employable to reduce a spacing requirement therebetween.

## Claims

### Claim 1

An antenna element system for engagement with an electronic device, comprising:
an antenna substrate;
a wideband antenna element formed on a first surface of said antenna substrate and positioned in an engagement with a housing surrounding an RF receiver or transceiver;
a feedline electrically communicating at a first end with said wideband antenna, and adapted at a second end for electrical communication with said RF receiver or transceiver positioned within said housing;
a planar dielectric substrate positioned in-between said wideband antenna and said RF receiver or transceiver and a thickness thereof defining a minimum spacing therebetween;
said electronic device being a cellular phone;
said dielectric substrate formed of FR-4 and having a said thickness of between 164th of an inch to ⅛th of an inch; and
said dielectric substrate having an area equal to or greater than an area of a motherboard of said cellular phone populated with electronic components.

### Claim 2 (depends on 1)

An antenna element system of claim 1, additionally comprising:
said dielectric substrate having a thickness of .032 inches.

### Claim 3 (depends on 1)

The antenna system of claim 1, wherein said wideband antenna comprises:
a first substrate surface, a portion of which is covered with a conductive material, and a portion of which is uncovered;
said conductive material forming a pair of horns, each of said pair of horns having substantially identical shapes and formed of substantially equal areas of said conductive material;
each of said horns each extending in opposite directions to distal tips;
a first cavity formed by said uncovered portion in-between said pair of horns;
said first cavity having a mouth portion, said mouth portion beginning at a first edge along a line extending between said distal tips;
said mouth portion reducing in cross-section as it extends from said first edge from a widest point substantially in-between said distal tips, to a narrowest point in between said pair of horns;
said first cavity extending away from said narrowest point in a curve and extending into a first one of said horns; and
said feedline electrically communicating at a first end with a second one of said horns and configured at a second end for electrical communication with said RF receiver or transceiver.

### Claim 4 (depends on 3)

The antenna element of claim 3, further comprising:
said narrowest point being at a position substantially equidistant from both said distal tips; and
said position of said narrowest point being substantially along a line running perpendicular to said first edge.

### Claim 5

An antenna element system for engagement with an electronic device, comprising:
an antenna substrate;
a wideband antenna element formed on a first surface of said antenna substrate and positioned in an engagement with a housing surrounding an RF receiver or transceiver;
a feedline electrically communicating at a first end with said wideband antenna, and adapted at a second end for electrical communication with said RF receiver or transceiver positioned within said housing;
a planar dielectric substrate positioned in-between said wideband antenna and said RF receiver or transceiver and a thickness thereof defining a minimum spacing therebetween;
said electronic device being a cellular phone;
said electronic substrate formed of FR-4 and having a said thickness of between 164th of an inch to ⅛th of an inch;
said first portion of said antenna substrate covered with a conductive material, and a having a portion of which is uncovered;
said conductive material forming a pair of horns, each of said pair of horns having substantially identical shapes and formed if substantially equal areas of said conductive material;
each of said horns each extending in opposite directions to distal tips;
a first cavity formed by said uncovered portion in-between said pair of horns;
said first cavity having a mouth portion, said mouth portion beginning at a first edge along a line extending between said distal tips;
said mouth portion reducing in cross-section as it extends from said first edge from a widest point substantially in-between said distal tips, to a narrowest point in between said pair of horns;
said first cavity extending away from said narrowest point in a curve and extending into a first one of said horns; and
said feedline electrically communicating at a first end with a second one of said horns and configured at a second end for electrical communication with said RF receiver or transceiver;
said narrowest point being at a position substantially equidistant from both said distal tips;
said position of said narrowest point being substantially along a line running perpendicular to said first edge;
a pair of “L” shaped conductors extending from a respective one of said horns from a point adjacent to a respective said distal tip of said horns; and
each respective said conductor electrically communicating between a respective said distal tip of one said horn and a respective body portion of the same said horn from which it extends.