Abstract: A mobile device includes a common ground element, a connection element, a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, and a dielectric substrate. The first radiation element has a first feeding point. The first radiation element is coupled through the connection element to the common ground element. The second radiation element is coupled to the first feeding point. The second radiation element is at least partially surrounded by the first radiation element. The third radiation element has a second feeding point. The fourth radiation element is adjacent to the third radiation element. The fourth radiation element is coupled to the common ground element. An antenna structure disposed on the dielectric substrate is formed by the common ground element, the connection element, the first radiation element, the second radiation element, the third radiation element, and the fourth radiation element.

Abstract: A mobile device includes a metal mechanism element, a feeding radiation element, a first radiation element, a second radiation element, and a dielectric substrate. The metal mechanism element has a slot. The slot has an open end and a closed end. The feeding radiation element has a feeding point. The first radiation element extends across the slot of the metal mechanism element. The feeding radiation element is coupled through the first radiation element to a ground voltage. The second radiation element is coupled to the feeding radiation element. The dielectric substrate is adjacent to the metal mechanism element. The feeding radiation element, the first radiation element, and the second radiation element are disposed on the dielectric substrate. An antenna structure is formed by the feeding radiation element, the first radiation element, the second radiation element, and the slot of the metal mechanism element.

Abstract: A mobile device includes a metal mechanism element, a feeding radiation element, a first radiation element, a second radiation element, and a dielectric substrate. The metal mechanism element has a slot. The slot has an open end and a closed end. The feeding radiation element has a feeding point. The first radiation element extends across the slot of the metal mechanism element. The feeding radiation element is coupled through the first radiation element to a ground voltage. The second radiation element is coupled to the feeding radiation element. The dielectric substrate is adjacent to the metal mechanism element. The feeding radiation element, the first radiation element, and the second radiation element are disposed on the dielectric substrate. An antenna structure is formed by the feeding radiation element, the first radiation element, the second radiation element, and the slot of the metal mechanism element.

Abstract: A mobile device includes a body, an antenna structure, and a floating radiation element. The body includes a frame and a housing. The frame is positioned on a first plane. The housing includes a parallel region and a cutting retraction region. The parallel region is positioned on a second plane which is parallel to the first plane. The floating radiation element is adjacent to the antenna structure, and is configured to enhance the radiation efficiency of the antenna structure. The antenna structure has a first vertical projection on the housing, and the first vertical projection is inside the parallel region. The floating radiation element has a second vertical projection on the housing, and the second vertical projection is inside the cutting retraction region. The frame is at least partially made of a nonconductive material. The housing is at least partially made of a conductive material.

Abstract: A detection device includes a spiral structure, a proximity sensor, a via element, an electrostatic-field enhancement element, and a nonconductive substrate. The spiral element has a first end and a second end. The proximity sensor is coupled to the first end of the spiral element. The electrostatic-field enhancement element is disposed adjacent to the spiral structure. The first end of the spiral structure is coupled through the via element to the electrostatic-field enhancement element. The second end of the spiral structure is an open end. The electrostatic-field enhancement element is configured to increase the directivity of the detection device. The nonconductive substrate is disposed between the spiral structure and the electrostatic-field enhancement element. The via element penetrates the nonconductive substrate.

Abstract: A back cover includes a metal body having a first side, a second side, and a groove that is formed at the first side. The metal body further has a first radiator, a second radiator, and a ground radiator. The first radiator is disposed in the groove, and has a main portion and a support portion that cooperatively form a T-shape. The main portion includes a feeding end adjacent to a closed end of the groove. The second radiator is adjacently connected to the groove and is defined by the first and second sides, and an edge of the groove. The ground radiator is formed by a portion of the metal body excluding the first and second radiators. The second radiator and the support portion are connected to the ground radiator. The first and second radiators, and the ground radiator are serve as an antenna structure.

Abstract: Mobile devices with integrated slot antennas are provided are provided. A representative mobile device includes: an exterior housing having a front and a back and defining an interior; a display, mounted to the housing, configured to display images at the front of the housing; and an antenna structure positioned within the interior; the housing having a first portion and a second portion, each of which is formed of metal, the first portion being located at the back of the housing and defining a first slot such that the antenna structure and the first slot form a first slot antenna, the second portion being located at the front of the housing and defining a second slot such that the antenna structure and the second slot form a second slot antenna.

Abstract: A mobile device includes a first nonconductive support member, a second nonconductive support member adjacent to, and lower than, the first nonconductive supporting member, and an antenna structure that includes a first radiating portion disposed on the first nonconductive support member, a second radiating portion disposed on the first nonconductive support member and extending in a direction opposite to the first radiating portion, a feeding element, and a connecting portion disposed on the first nonconductive support member and the second nonconductive support member that couples the first radiating portion and the second radiating portion to each other and to the feeding element, wherein the first nonconductive support member is part of a visible outside edge portion of the mobile device.

Abstract: A back cover includes a metal body having a first side, a second side, and a groove that is formed at the first side. The metal body further has a first radiator, a second radiator, and a ground radiator. The first radiator is disposed in the groove, and has a main portion and a support portion that cooperatively form a T-shape. The main portion includes a feeding end adjacent to a closed end of the groove. The second radiator is adjacently connected to the groove and is defined by the first and second sides, and an edge of the groove. The ground radiator is formed by a portion of the metal body excluding the first and second radiators. The second radiator and the support portion are connected to the ground radiator. The first and second radiators, and the ground radiator are serve as an antenna structure.

Abstract: A mobile device includes a body, an antenna structure, and a floating radiation element. The body includes a frame and a housing. The frame is positioned on a first plane. The housing includes a parallel region and a cutting retraction region. The parallel region is positioned on a second plane which is parallel to the first plane. The floating radiation element is adjacent to the antenna structure, and is configured to enhance the radiation efficiency of the antenna structure. The antenna structure has a first vertical projection on the housing, and the first vertical projection is inside the parallel region. The floating radiation element has a second vertical projection on the housing, and the second vertical projection is inside the cutting retraction region. The frame is at least partially made of a nonconductive material. The housing is at least partially made of a conductive material.

Abstract: A detection device includes a spiral structure, a proximity sensor, a via element, an electrostatic-field enhancement element, and a nonconductive substrate. The spiral element has a first end and a second end. The proximity sensor is coupled to the first end of the spiral element. The electrostatic-field enhancement element is disposed adjacent to the spiral structure. The first end of the spiral structure is coupled through the via element to the electrostatic-field enhancement element. The second end of the spiral structure is an open end. The electrostatic-field enhancement element is configured to increase the directivity of the detection device. The nonconductive substrate is disposed between the spiral structure and the electrostatic-field enhancement element. The via element penetrates the nonconductive substrate.

Abstract: A mobile device and antenna structure thereof are provided. An antenna structure is placed next to a pivot structure of the mobile device and a parasitic element is placed next to a high-frequency radiation element extending from a feeding element, so as to resonate with the high-frequency radiation element to generate a resonant mode for compensating the lack of a high-frequency bandwidth.

Abstract: A mobile device and antenna structure thereof are provided. An antenna structure is placed next to a pivot structure of the mobile device and a parasitic element is placed next to a high-frequency radiation element extending from a feeding element, so as to resonate with the high-frequency radiation element to generate a resonant mode for compensating the lack of a high-frequency bandwidth.

Abstract: A mobile device includes a metal mechanism element, a ground plane, a feeding element, a parasitic element, and a dielectric substrate. The metal mechanism element has a slot. The ground plane is coupled to the metal mechanism element. The feeding element is coupled to a signal source. The feeding element extends across the slot. The parasitic element is coupled to the ground plane. The parasitic element extends across the slot. The ground plane, the feeding element, and the parasitic element are disposed on the dielectric substrate. An antenna structure is formed by the feeding element, the parasitic element, and the slot of the metal mechanism element.

Abstract: A mobile device includes a first nonconductive support member, a second nonconductive support member adjacent to, and lower than, the first nonconductive supporting member, and an antenna structure that includes a first radiating portion disposed on the first nonconductive support member, a second radiating portion disposed on the first nonconductive support member and extending in a direction opposite to the first radiating portion, a feeding element, and a connecting portion disposed on the first nonconductive support member and the second nonconductive support member that couples the first radiating portion and the second radiating portion to each other and to the feeding element, wherein the first nonconductive support member is part of a visible outside edge portion of the mobile device.

Abstract: An electronic device includes a dielectric substrate, a first radiation element, a second radiation element, a third radiation element, and a sensing pad. The first radiation element includes a first branch, a second branch, and a first connection element. The first connection element is coupled between the first branch and the second branch. The second branch is coupled to a ground voltage. The second radiation element has a feeding point. The third radiation element is coupled to the feeding point. An antenna structure is formed by the first radiation element, the second radiation element, and the third radiation element. The sensing pad includes a third branch, a fourth branch, and a second connection element. The second connection element is coupled between the third branch and the fourth branch. The second connection element has a meandering structure.

Abstract: A mobile device includes a dual band T-shaped antenna and a sensing element. The sensing element includes a first sensing part extending in first direction, a second sensing part, and a third sensing part, wherein the second sensing part and the third sensing part each includes portions that extend in a second direction that is perpendicular to the first direction. The sensing element is used to both detect proximity to an object, to meet specific absorption rate (SAR) criteria, and to affect resonance of the dual band T-shaped antenna.

Abstract: A mobile device includes a system ground plane and an antenna system. The antenna system includes a dielectric substrate, an antenna ground plane, a radiation element, and at least one feeding element. The antenna ground plane is coupled to the system ground plane. The feeding element is coupled to a signal source. The feeding element is positioned between the radiation element and the antenna ground plane. The feeding element and the radiation element are completely separate from each other. The radiation element is excited by the feeding element by coupling.

Abstract: A mobile device includes a housing including a metal case and an antenna mounted inside the housing. The antenna includes a first radiation portion disposed on a first surface of a substrate, a second radiation portion disposed on an opposing surface of the substrate, and a ground element, wherein the second radiation portion includes a first grounding point and a second grounding point that are each electrically connected to the metal case via the ground element.

Abstract: A mobile device includes a metal mechanism element, a ground plane, a feeding element, a parasitic element, and a dielectric substrate. The metal mechanism element has a slot. The ground plane is coupled to the metal mechanism element. The feeding element is coupled to a signal source. The feeding element extends across the slot. The parasitic element is coupled to the ground plane. The parasitic element extends across the slot. The ground plane, the feeding element, and the parasitic element are disposed on the dielectric substrate. An antenna structure is formed by the feeding element, the parasitic element, and the slot of the metal mechanism element.