Multi-element antenna for multiple bands of operation and method therefor

Patent metadata

Field	Value
Publication number	US-10749260-B2
Application number	US-201916597087-A
Country	US
Kind code	B2
Filing date	Oct 9, 2019
Priority date	Jan 22, 2016
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

An antenna assembly has a conductive line coupled to a feed point. An element is configured to resonate at a predetermined frequency. The element is electrically coupled to the conductive line and aligned perpendicular to the conductive line wherein the predetermined frequency of the element determines a distance from the feed point along the conductive line.

First claim

I claim as my invention the following:

1. A multi-element antenna assembly comprising:
a first substrate;
a second substrate orthogonal to the first substrate;
an opening formed in a central area of the first substrate;
a first conductive line formed on a first surface of the first substrate;
a second conductive line formed on the first surface of the first substrate;
a first transmission line positioned through the opening and electrically coupled to the first conductive line and the second conductive line at a feed point; and
a first plurality of pairs of elements positioned on the second substrate, each pair of the first plurality of elements resonating at different predetermined frequencies, each of the first plurality of pairs of elements having a first member and a corresponding member, wherein each first member of the first plurality of pairs of elements is electrically coupled to the first conductive line and each corresponding member of the first plurality of pairs of elements is electrically coupled to the second conductive line, wherein the first member of each of the first plurality of pairs of elements positioned on a first side of the feed point and the corresponding member of each of the first plurality of pairs of elements is positioned on an opposing side of the feed point, the different predetermined frequencies determining a distance from the feed point along the first conductive line and the second conductive line for each of the first plurality of pairs of elements;
wherein each pair of elements of the first plurality of pairs of elements is positioned in descending order with a highest frequency pair of elements of the first plurality of pairs of elements located closest to the feed point and a lowest frequency pair of elements of the first plurality of pairs of elements located furthest from the feed point.

2. A multi-element antenna assembly comprising:
a substrate;
an opening formed in a central area of the substrate;
a first conductive line and a second conductive line formed on a first surface of the substrate;
a first transmission line positioned through the opening and electrically coupled to the first conductive line and the second conductive line at a feed point;

a first plurality of pairs of elements, each pair of the first plurality of elements resonating at different predetermined frequencies, each of the first plurality of pairs of elements having a first member and a corresponding member, wherein each first member of the first plurality of pairs of elements is electrically coupled to the first conductive line and each corresponding member of the first plurality of pairs of elements is electrically coupled to the second conductive line, wherein the first member of each of the first plurality of pairs of elements positioned on a first side of the feed point and the corresponding member of each of the first plurality of pairs of elements positioned on an opposing side of the feed point, the different predetermined frequencies determining a distance from the feed point along the first conductive line or the second conductive line for each of the first plurality of pairs of elements;
a third conductive line and a fourth conductive line formed on the first surface of the substrate;
a second transmission line positioned through the opening and electrically coupled to the third conductive line and the fourth conductive line at the feed point; and
a second plurality of pairs of elements, each pair of the second plurality of pairs of elements resonating at different predetermined frequencies, each of the second plurality of pairs of elements having a first member and a corresponding member, wherein each first member of the second plurality of pairs of elements is electrically coupled to the third conductive line and each corresponding member of the second plurality of pairs of elements is electrically coupled to the fourth conductive line, wherein the first member of each of the second plurality of pairs of elements positioned on a first side of the feed point and the corresponding member of each of the second plurality of pairs of elements positioned on an opposing side of the feed point, the different predetermined frequencies determining a distance from the feed point along the third conductive line or the fourth conductive line for each of the second plurality of pairs elements;
wherein each pair of elements of the first plurality of pairs of elements is positioned in descending order with a highest frequency pair of elements of the first plurality of pairs of elements located closest to the feed point and a lowest frequency pair of elements of the first plurality of pairs of elements located furthest from the feed point.

3. A multi-element antenna assembly comprising: a substrate having an opening formed in a central area of the substrate; a first of conductive line formed on a first surface of the substrate; a first transmission line positioned through the opening and electrically coupled to the first conductive line at a feed point; a first plurality of pairs of elements, each pair of the first plurality of elements resonating at different predetermined frequencies, each of the first plurality of pairs of elements having a first member and a corresponding member, wherein each of the first plurality of pairs of elements is electrically coupled to the first conductive line and aligned perpendicular to the first conductive line, wherein the first member of each of the first plurality of pairs of elements positioned on a first side of the feed point and the corresponding member of each of the first plurality of pairs of elements positioned on an opposing side of the feed point, the different predetermined frequencies determining a distance from the feed point along the first conductive line for each of the first plurality of pairs elements; a second conductive line formed on the first surface of the substrate, the second conductive line electrically coupled to a second transmission line at the feed point;
and a second plurality of pairs of elements, each pair of the second plurality of elements resonating at different predetermined frequencies; wherein each of the second plurality of pairs of elements is electrically coupled to the second conductive line and aligned perpendicular to the second conductive line, wherein the first member of each of the second plurality of pairs of elements is positioned on a first side of the feed point and the corresponding member of each of the second plurality of pairs of elements is positioned on an opposing side of the feed point; wherein each pair of elements of the first plurality of pairs of elements is positioned in descending order with a highest frequency pair of elements of the first plurality of pairs of elements located closest to the feed point and a lowest frequency pair of elements of the first plurality of pairs of elements located furthest from the feed point; wherein the highest frequency pair of elements of the first plurality of pairs of elements operates at 2400 MegaHertz (MHz).

4. The multi-element antenna assembly according to claim 3 further wherein the first conductive line, the second conductive line, the first plurality of pairs of elements and the second plurality of pairs of elements are formed of microstrips.

Assignees

• Airgain Inc

Inventors

• Thill Kevin

Classifications

• H01Q1/38 Primary

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q5/40 Primary

  Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements · CPC title

• H01Q5/371 Primary

  Branching current paths · CPC title

• H01Q9/28

  Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines (waveguide horns or mouths H01Q13/00; slot antennas H01Q13/00) · CPC title

• H01Q1/243

  with built-in antennas · CPC title