An antenna structure includes a substrate, a radiation element, a conducting element, a grounding element, a first inductor, a second inductor, and a feeding element. The radiation element is disposed on the substrate. The radiation element includes a first radiation portion, a second radiation portion, a third radiation portion, and a feeding portion connected between the first radiation portion, the second radiation portion, and the third radiation portion. The conducting element is disposed on the substrate. The conducting element connects with the feeding portion. The grounding element and the feeding portion are separated from each other. The first inductor is disposed on the substrate, and coupled between the conducting element and the grounding element. The second inductor is disposed on the substrate, and coupled between the conducting element and the grounding element.

An antenna system comprising: a ground plane; an antenna radiator separated from and overlapping the ground plane; at least one feed element configured to provide a radio-frequency feed for the antenna radiator; and at least one resonator coupled to the feed element and positioned in a space between the ground plane and the antenna radiator, wherein the antenna radiator is a broadband antenna radiator having a first operational range of frequencies and the resonator is a narrow band resonator having a second range of resonant frequencies that at least partially lie within the first operational range of frequencies.

An antenna system comprising: a ground plane; an antenna radiator separated from and overlapping the ground plane; at least one feed element configured to provide a radio-frequency feed for the antenna radiator; and at least one resonator coupled to the feed element and positioned in a space between the ground plane and the antenna radiator, wherein the antenna radiator is a broadband antenna radiator having a first operational range of frequencies and the resonator is a narrow band resonator having a second range of resonant frequencies that at least partially lie within the first operational range of frequencies.

Provided is an electronic device that includes a first housing including a first side facing a first direction, a second side facing a second direction opposite to the first direction, and a first lateral side surrounding at least part of a space between the first side and the second side, wherein the first lateral side includes a first conductive portion and a first non-conductive portion; a second housing including a third side facing a third direction, a fourth side facing a fourth direction opposite to the third direction, a second lateral side surrounding at least part of a space between the third side and the fourth side and a ground member, wherein the second lateral side includes a second conductive portion and a second non-conductive portion; a flexible display disposed in the first housing and the second housing; a connecting member which connects the first housing and the second housing such that the first housing and the second housing are folded to face each other, wherein when the first housing and the second housing are folded, the first non-conductive portion and the second non-conductive portion abut against each other; at least one wireless communication circuit electrically connected to the first conductive portion; and at least one switching circuit disposed in the second housing, wherein the at least one switching circuit is electrically connected between the second conductive portion and the ground member such that the second conductive portion can be selectively connected to the ground member, and wherein the first lateral side forms at least a part of an exterior of the electronic device.

Provided is an electronic device that includes a first housing including a first side facing a first direction, a second side facing a second direction opposite to the first direction, and a first lateral side surrounding at least part of a space between the first side and the second side, wherein the first lateral side includes a first conductive portion and a first non-conductive portion; a second housing including a third side facing a third direction, a fourth side facing a fourth direction opposite to the third direction, a second lateral side surrounding at least part of a space between the third side and the fourth side and a ground member, wherein the second lateral side includes a second conductive portion and a second non-conductive portion; a flexible display disposed in the first housing and the second housing; a connecting member which connects the first housing and the second housing such that the first housing and the second housing are folded to face each other, wherein when the first housing and the second housing are folded, the first non-conductive portion and the second non-conductive portion abut against each other; at least one wireless communication circuit electrically connected to the first conductive portion; and at least one switching circuit disposed in the second housing, wherein the at least one switching circuit is electrically connected between the second conductive portion and the ground member such that the second conductive portion can be selectively connected to the ground member, and wherein the first lateral side forms at least a part of an exterior of the electronic device.

A wireless handheld or portable device includes an antenna system operable in a first frequency region and a higher, second frequency region. The antenna system comprises an antenna structure, a matching and tuning system, and an external input/output (I/O) port. The antenna structure comprises at least one radiating element including a connection point, a ground plane layer including at least one connection point, and at least one internal I/O port. At least one radiating element of the antenna structure protrudes beyond the ground plane layer. The antenna structure features at any of its internal I/O ports when disconnected from the matching and tuning system an input return loss curve having a minimum at a frequency outside the first frequency region of the antenna system. The matching and tuning system modifies the impedance of the antenna structure and provides impedance matching to the antenna system in the first and second regions.

A wireless handheld or portable device includes an antenna system operable in a first frequency region and a higher, second frequency region. The antenna system comprises an antenna structure, a matching and tuning system, and an external input/output (I/O) port. The antenna structure comprises at least one radiating element including a connection point, a ground plane layer including at least one connection point, and at least one internal I/O port. At least one radiating element of the antenna structure protrudes beyond the ground plane layer. The antenna structure features at any of its internal I/O ports when disconnected from the matching and tuning system an input return loss curve having a minimum at a frequency outside the first frequency region of the antenna system. The matching and tuning system modifies the impedance of the antenna structure and provides impedance matching to the antenna system in the first and second regions.

A printed circuit board (PCB) assembly supports selecting alternate printed antenna geometries of an antenna by selectively placing common PCB components (for example, zero-ohm resistors) on the PCB. The desired zero-ohm resistors may be placed using automated part placement equipment commonly used to place surface mount components. The configurable antenna comprises at least one antenna section having a plurality of antenna components. Zero-ohm resistors are selectively placed in series along the antenna section to couple the desired conductor components when manufacturing the PCB assembly. With some embodiments, a configurable antenna includes a low frequency antenna section that may be selectively coupled with a high frequency antenna section antenna through one or more zero-ohm resistors, where each antenna section has a plurality of antenna components. With this approach, a common printed circuit board may be used to support a plurality of antenna variations spanning different frequency bands.

A printed circuit board (PCB) assembly supports selecting alternate printed antenna geometries of an antenna by selectively placing common PCB components (for example, zero-ohm resistors) on the PCB. The desired zero-ohm resistors may be placed using automated part placement equipment commonly used to place surface mount components. The configurable antenna comprises at least one antenna section having a plurality of antenna components. Zero-ohm resistors are selectively placed in series along the antenna section to couple the desired conductor components when manufacturing the PCB assembly. With some embodiments, a configurable antenna includes a low frequency antenna section that may be selectively coupled with a high frequency antenna section antenna through one or more zero-ohm resistors, where each antenna section has a plurality of antenna components. With this approach, a common printed circuit board may be used to support a plurality of antenna variations spanning different frequency bands.

According to various embodiments, an electronic apparatus comprises: a housing including a front plate, a rear plate disposed facing a direction opposite the front plate, and a side bezel enclosing at least a portion of the space between the front plate and the rear plate; a circuit board disposed between the front plate and the rear plate; a first radiating conductor disposed to form at least a portion of the side bezel; a connection member comprising a conductive material disposed between the circuit board and the rear plate; and a processor or communication module comprising communication circuitry disposed on the circuit board. The connection member includes a first curved part provided on one end and contacting the circuit board, and a second curved part provided on another end and contacting the first radiating conductor, thereby electrically connecting the first radiating conductor to the circuit board. The processor or communication module can be configured to use the first radiating conductor to perform wireless communication in at least one frequency band.