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 multi-band antenna includes a ground plane and an antenna element. The antenna element includes a first radiation portion and a second radiation portion. A first end of the first radiation portion is coupled to a feeding point, and a second end of the first radiation portion is a first open end. A first end of the second radiation portion is coupled to a ground plane, and a second end of the second radiation portion is a second open end. The second radiation portion is not electrically connected to the first radiation portion, and a coupling distance exists between the second radiation portion and the first radiation portion. The antenna element operates in a first band through the first radiation portion and operates in a second band through the second radiation portion. The frequency in the first band is lower than the frequency in the second band.

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 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 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.

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 ground element and an antenna element. The antenna element includes a first radiation portion, a second radiation portion, and a third radiation portion. The first radiation portion is electrically connected between a feeding point and an edge of the ground element, and the antenna element operates in a first frequency band through a first path formed by the first radiation portion. A first end of the second radiation portion is electrically connected to the first radiation portion, and a second end of the second radiation portion is a first open end. The third radiation portion is electrically connected between the second radiation portion and the edge of the ground element. The antenna element operates in a second frequency band through a second path formed by the second radiation portion and the third radiation portion.

Abstract: A mobile device includes a first nonconductive supporting element, a second nonconductive supporting element, and an antenna structure. The first nonconductive supporting element and the second nonconductive supporting element are adjacent to each other. The first nonconductive supporting element and the second nonconductive supporting element have different heights. The antenna structure is formed on the first nonconductive supporting element and the second nonconductive supporting element. The antenna element includes a feeding connection element, a first radiation element, and a second radiation element. The feeding connection element is coupled to a feeding point. The first radiation element and the second radiation element are coupled to the feeding connection element. The feeding connection element is disposed between the first radiation element and the second radiation element.

Abstract: A communication device including a ground plane and an antenna element is provided. The antenna element includes a feeding portion, a first radiation portion, a second radiation portion and an adjusting portion. The first radiation portion and the feeding portion form a first resonant path, and the first radiation portion includes a first portion and a second portion. The first portion faces a first edge of the ground plane and the second portion, and the second portion extends from a second edge of the ground plane. The second radiation portion and the feeding portion form a second resonant path. The antenna element operates in a first band and a second band through the first resonant path and the second resonant path. The adjusting portion and part of the first radiation portion form a current-dividing path to adjust impedance of the antenna element operating in the second band.

Abstract: An electronic device including a metal element and an antenna element is provided. The antenna element is disposed on a substrate and includes a radiation portion and a connection portion. A first end of the radiation portion has a feeding point for receiving a feeding signal, and a second end of the radiation portion is an open end. A first end of the connection portion is electrically connected to the first end of the radiation portion. A second end of the connecting portion has a first ground point to be electrically connected the metal element. An orthogonal projection of the metal element on the substrate and an orthogonal projection of the antenna element on the substrate are overlapped with each other. The radiation portion is electrically connected the metal element through a second ground point.

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.