An antenna structure with multiple frequency and MIMO capabilities applied to an electronic device includes back board, side frame, first feed point, second feed point, and first ground point. The side frame defines at least a first gap and a second gap. The first and second gaps create first and second radiation portions from the side frame. The first feed point from a source feeds current and signal to the first radiation portion. The second feed point from a source feeds current and signal to the second radiation portion. The first ground point is positioned between the first and second feed points. When the first feed point and the second feed point supply current, the first radiation portion and the second radiation generate at least one common radiation frequency band together with others.

An antenna structure with multiple frequency and MIMO capabilities applied to an electronic device includes back board, side frame, first feed point, second feed point, and first ground point. The side frame defines at least a first gap and a second gap. The first and second gaps create first and second radiation portions from the side frame. The first feed point from a source feeds current and signal to the first radiation portion. The second feed point from a source feeds current and signal to the second radiation portion. The first ground point is positioned between the first and second feed points. When the first feed point and the second feed point supply current, the first radiation portion and the second radiation generate at least one common radiation frequency band together with others.

An antenna device according to an aspect includes a dielectric layer, a radiator formed on the dielectric layer, and a transmission line connected to the radiator on the dielectric layer and formed in a mesh structure which is a set of unit cells defined by a plurality of conductive lines. A width of the transmission line may be an integer multiple of the width of the unit cell, and may be within an allowable error range.

An antenna device according to an aspect includes a dielectric layer, a radiator formed on the dielectric layer, and a transmission line connected to the radiator on the dielectric layer and formed in a mesh structure which is a set of unit cells defined by a plurality of conductive lines. A width of the transmission line may be an integer multiple of the width of the unit cell, and may be within an allowable error range.

An antenna structure includes a substrate, a radiator mounted at one end of a front surface of the substrate, and a grounding element mounted at the other end of the front surface of the substrate. The radiator has a first radiating portion. Two portions of a middle of one end edge of the first radiating portion extend horizontally to form a second radiating portion and a feeding portion. The feeding portion is located above the second radiating portion. A free end of the feeding portion is a feeding end. An upper portion of the other end edge of the first radiating portion extends opposite to the one end edge of the first radiating portion and extends along a rectangular spiral path to form a rectangular spiral third radiating portion.

An antenna structure includes a substrate, a radiator mounted at one end of a front surface of the substrate, and a grounding element mounted at the other end of the front surface of the substrate. The radiator has a first radiating portion. Two portions of a middle of one end edge of the first radiating portion extend horizontally to form a second radiating portion and a feeding portion. The feeding portion is located above the second radiating portion. A free end of the feeding portion is a feeding end. An upper portion of the other end edge of the first radiating portion extends opposite to the one end edge of the first radiating portion and extends along a rectangular spiral path to form a rectangular spiral third radiating portion.

An example electronic device may include an antenna module including a printed circuit board, a plurality of conductive patches including a first conductive patch and a second conductive patch, an RFIC which is disposed on the second surface of the printed circuit board and includes a first tuning circuit, and a first conductive structure which includes a first portion extending from the first conductive patch, a second portion extending from the second conductive patch and connected to the first portion at a point positioned at one end of the first portion, and a first common portion connected to the first tuning circuit and connecting the first conductive patch and the second conductive patch to the first tuning circuit, a ground, and a wireless communication circuit, and the wireless communication circuit may be configured to feed the plurality of conductive patches to receive a signal in a designated frequency band.

An electromagnetic device includes: an electrically conductive ground structure; at least one dielectric resonator antenna (DRA) disposed on the ground structure; at least one electromagnetic (EM) beam shaper disposed proximate a corresponding one of the DRA; and, at least one signal feed disposed electromagnetically coupled to a corresponding one of the DRA. The at least one EM beam shaper having: an electrically conductive horn; a body of dielectric material having a dielectric constant that varies across the body of dielectric material in a specific direction; or, both the electrically conductive horn and the body of dielectric material.

An electromagnetic device includes: an electrically conductive ground structure; at least one dielectric resonator antenna (DRA) disposed on the ground structure; at least one electromagnetic (EM) beam shaper disposed proximate a corresponding one of the DRA; and, at least one signal feed disposed electromagnetically coupled to a corresponding one of the DRA. The at least one EM beam shaper having: an electrically conductive horn; a body of dielectric material having a dielectric constant that varies across the body of dielectric material in a specific direction; or, both the electrically conductive horn and the body of dielectric material.

Antenna systems for access points and other wireless radio units include an RF ground plane, a radiating element mounted in front of the RF ground plane, and a coaxial feed cable coupled to the radiating element. The cable jacket includes a first opening that exposes a first portion of an outer conductor of the coaxial feed cable so that the cable jacket is on either side of the first opening along a longitudinal direction of the coaxial feed cable. The first portion of the outer conductor is galvanically connected to the RF ground plane via a first direct galvanic connection.