An electronic device may be provided with an antenna module and a phased antenna array on the module. The module may include a logic board, an antenna board surface-mounted to the logic board, and a radio-frequency integrated circuit (RFIC) mounted surface-mounted to the logic board. The phased antenna array may include antennas embedded in the antenna board. The antennas may radiate at centimeter and/or millimeter wave frequencies. The logic board may form a radio-frequency interface between the RFIC and the antennas. Transmission lines in the logic board and the antenna board may include impedance matching segments that help to match the impedance of the RFIC to the impedance of the antennas. The module may efficiently utilize space within the device without sacrificing radio-frequency performance.

An antenna structure comprising: a first port; a second port; and a single radiator connected to both the first and second ports, the single radiator being operable to simultaneously transceive in: a symmetrical excited mode in which current flows symmetrically through the single radiator to or from the first port, thereby causing the single radiator to resonate at a first resonant frequency; and an asymmetrical excited mode in which current flows asymmetrically through the single radiator to or from the second port, thereby causing the single radiator to resonate at a second resonant frequency. The single radiator comprises: a first element, a second element, and arm connectors connecting the first element to the second element. The first element being elongate and linear. The second element being elongate, linear, and parallel to the first element.

An antenna structure comprising: a first port; a second port; and a single radiator connected to both the first and second ports, the single radiator being operable to simultaneously transceive in: a symmetrical excited mode in which current flows symmetrically through the single radiator to or from the first port, thereby causing the single radiator to resonate at a first resonant frequency; and an asymmetrical excited mode in which current flows asymmetrically through the single radiator to or from the second port, thereby causing the single radiator to resonate at a second resonant frequency. The single radiator comprises: a first element, a second element, and arm connectors connecting the first element to the second element. The first element being elongate and linear. The second element being elongate, linear, and parallel to the first element.

An impedance matching method for a low-profile ultra-wideband array antenna is provided. The method includes: connecting an arm of a balanced end of a hyperbolic microstrip balun in series with an open circuit line; directly coupling the open circuit line to a radiator layer; connecting another arm of the balanced end of the hyperbolic microstrip balun to the radiator layer via a metallized via hole, and welding an unbalanced end of the hyperbolic microstrip balun to a coaxial line, so that the coaxial line feeds a power to the antenna via the hyperbolic microstrip balun. In this method, the open circuit line is integrated between the hyperbolic microstrip balun and the radiator layer of the antenna to achieve an impedance matching of the ultra-wideband antenna and to simplify a structure of a matching circuit.

An impedance matching method for a low-profile ultra-wideband array antenna is provided. The method includes: connecting an arm of a balanced end of a hyperbolic microstrip balun in series with an open circuit line; directly coupling the open circuit line to a radiator layer; connecting another arm of the balanced end of the hyperbolic microstrip balun to the radiator layer via a metallized via hole, and welding an unbalanced end of the hyperbolic microstrip balun to a coaxial line, so that the coaxial line feeds a power to the antenna via the hyperbolic microstrip balun. In this method, the open circuit line is integrated between the hyperbolic microstrip balun and the radiator layer of the antenna to achieve an impedance matching of the ultra-wideband antenna and to simplify a structure of a matching circuit.

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.

An antenna element comprises a housing having a base and a conducting plate, and a feeding element. The housing has a cavity formed between the base and the conducting plate. The conducting plate has a radiating slot with a length and a width that extends longitudinally along a first axis and a second axis, respectively. The radiating slot has a first and a second edge along the first axis. The feeding element has a feeding point, a feeding line, and a stub. The feeding line extends along the second axis of the conducting plate across the width of the radiating slot such that a first end of the feeding line is coupled with the feeding point on one side of the radiating slot, and a second end of the feeding line extends past the second edge, and the stub extends laterally of the feeding line.

An antenna element comprises a housing having a base and a conducting plate, and a feeding element. The housing has a cavity formed between the base and the conducting plate. The conducting plate has a radiating slot with a length and a width that extends longitudinally along a first axis and a second axis, respectively. The radiating slot has a first and a second edge along the first axis. The feeding element has a feeding point, a feeding line, and a stub. The feeding line extends along the second axis of the conducting plate across the width of the radiating slot such that a first end of the feeding line is coupled with the feeding point on one side of the radiating slot, and a second end of the feeding line extends past the second edge, and the stub extends laterally of the feeding line.

A container including an RFID module is provided that includes a base, a metal film, and a slit. The base has an insulating property. The metal film is on a first main surface of the base. The slit separates the metal film into a first metal region and a second metal region. The RFID module includes an RFIC element, a filter circuit configured to transmit a current due to an electromagnetic wave at a natural resonance frequency being a communication frequency to the RFIC element, and first and second electrodes to be connected to the filter circuit. The first electrode of the RFID module and the first metal region of the metal film are electrically connected to each other. The second electrode of the RFID module and the second metal region of the metal film are electrically connected to each other.