Provided is an antenna assembly including a conductive frame, and a resonance unit. The conductive frame is divided into first and second conductive branch by a slot. The resonance unit includes first and second resonance circuits. One terminal of the second resonance circuit is grounded, and another terminal is connected to the second conductive branch. A first signal source is capable of feeing a first current signal to the first conductive branch through the first resonance circuit and the first feeding point, enabling the first conductive branch to radiate a first radio frequency signal. The second signal source is capable of feeding a second current signal to the second conductive branch through the second feeding point, enabling the second conductive branch, under a resonance of the second resonance circuit, to radiate a second radio frequency signal.

An antenna assembly includes a conductive frame defining at least one slot and divided into at least a first conductive branch and a second conductive branch independently by the slot, a feed point being arranged on the first conductive branch; a resonant circuit, a signal source being coupled to and feeding a current signal to the first conductive branch through the resonant circuit and the feed point, the current signal being coupled to the second conductive branch through the slot, and multiple resonant frequencies being generated on the first and the second conductive branches through the resonant circuit; and a switching circuit configured between perform a switching adjustment for the current signal coupled to the second conductive branch such that radio frequency signals including multiple operating frequency bands are radiated simultaneously on the first conductive branch and the second conductive branch; at least two operating frequency bands being switchable.

An electronic device is provided. The electronic device includes a housing including a first surface, a second surface disposed facing an opposite side of the first surface, and a side surface configured to surround at least a portion of a space between the first surface and the second surface, a first elongated metal member configured to form a first portion of the side surface and including a first end and a second end, at least one communication circuit electrically connected to a first point of the first elongated metal member through a capacitive element, at least one ground member disposed in an interior of the housing, and a first conductive member configured to electrically connect a second point of the first elongated metal member to the ground member. The second point of the first elongated metal member is disposed closer to the second end than to the first point.

An electronic device is provided. The electronic device includes a housing including a first surface, a second surface disposed facing an opposite side of the first surface, and a side surface configured to surround at least a portion of a space between the first surface and the second surface, a first elongated metal member configured to form a first portion of the side surface and including a first end and a second end, at least one communication circuit electrically connected to a first point of the first elongated metal member through a capacitive element, at least one ground member disposed in an interior of the housing, and a first conductive member configured to electrically connect a second point of the first elongated metal member to the ground member. The second point of the first elongated metal member is disposed closer to the second end than to the first point.

An antenna structure includes a feeding radiation element, a first radiation element, a second radiation element, a shorting element, a first tuner, and a second tuner. The feeding radiation element has a feeding point. The first radiation element is coupled to the feeding radiation element. The first radiation element is coupled through the first tuner to a ground voltage. The feeding radiation element is coupled through the shorting element to the ground voltage. The second radiation element is adjacent to the first radiation element, and is separated from the first radiation element. The second radiation element is coupled through the second tuner to the ground voltage. The feeding radiation element is disposed between the first tuner and the shorting element.

An antenna structure includes a feeding radiation element, a first radiation element, a second radiation element, a shorting element, a first tuner, and a second tuner. The feeding radiation element has a feeding point. The first radiation element is coupled to the feeding radiation element. The first radiation element is coupled through the first tuner to a ground voltage. The feeding radiation element is coupled through the shorting element to the ground voltage. The second radiation element is adjacent to the first radiation element, and is separated from the first radiation element. The second radiation element is coupled through the second tuner to the ground voltage. The feeding radiation element is disposed between the first tuner and the shorting element.

An antenna structure includes a metal mechanism element, a dielectric substrate, a feeding radiation element, a coupling radiation element, a ground plane, a first shorting element, a second shorting element, and a circuit element. The metal mechanism element has a slot. The dielectric substrate has a first surface and a second surface which are opposite to each other. The feeding radiation element extends across the slot. The coupling radiation element is adjacent to the feeding radiation element. The first shorting element is coupled to a first grounding point on the ground plane. The second shorting element is coupled to the metal mechanism element. The circuit element is coupled between the first shorting element and the second shorting element. The coupling radiation element is disposed on the first surface of the dielectric substrate. The feeding radiation element is disposed on the second surface of the dielectric substrate.

A monocone antenna is described for V2X wireless communications. To achieve ultrawide bandwidth, low-profile, omnidirectional radiation, an implementation comprises various components including a circular monocone, a capacitive feed, a ring with grounding vias, capacitive bars, and conductive cylinders. Another implementation comprises a monocone, a capacitive feed, a ground ring with grounding vias, a plurality of first meander lines, each having a first size, and a plurality of second meander lines each having a second size, wherein the second size is larger than the first size.

A monocone antenna is described for V2X wireless communications. To achieve ultrawide bandwidth, low-profile, omnidirectional radiation, an implementation comprises various components including a circular monocone, a capacitive feed, a ring with grounding vias, capacitive bars, and conductive cylinders. Another implementation comprises a monocone, a capacitive feed, a ground ring with grounding vias, a plurality of first meander lines, each having a first size, and a plurality of second meander lines each having a second size, wherein the second size is larger than the first size.

An antenna includes a first radiator, a second radiator, and a feed. The first radiator has a first feed point and a first ground point. The second radiator has a second feed point and a second ground point. The antenna further includes a connection line. The connection line has a first end and a second end that are opposite to each other. The first end is coupled to the first feed point of the first radiator, and the second end is coupled to the second feed point of the second radiator. A feeding point is disposed on the connection line, and the feeding point is coupled to the feed.