Abstract: A multi-band antenna including a ground portion, a first radiation portion, a second radiation portion, a feeding portion and a matching portion is provided. The first radiation portion is disposed beside the ground portion, a first gap is existed between the ground portion and the first radiation portion so as to form a first slot, and the first slot has a first open terminal located at the first gap. The second radiation portion is connected to the first radiation portion. The feeding portion is located between the first radiation portion and the second radiation portion. The matching portion is located in the first slot and connected to the first radiation portion and the ground portion. The feeding portion excites the first slot to generate a first resonant mode. The second radiation portion generates a second resonant mode.

Abstract: An antenna structure including a metal element, a first capacitor, a second capacitor, a feeding element and an adjustment element is provided. The metal element has an open slot, and the open slot has an open end, a first slot and a second slot. The first slot and the second slot are respectively disposed on two opposite sides of the open end. The feeding element crosses the first slot. A first end of the feeding element has a feeding point, and a second end of the feeding element is electrically connected to the metal element through the first capacitor. The adjustment element is disposed in the second slot. A first end of the adjustment element is electrically connected to the metal element, and a second end of the adjustment element is electrically connected to the metal element through the second capacitor.

Abstract: An antenna structure includes a substrate, a metal element, and a feeding element. The metal element has an open slot. The open slot forms a first resonant path. The substrate is disposed on the metal element. The feeding element is disposed on the substrate, and the metal element and the feeding element are respectively disposed on two opposite sides of the substrate. The feeding element includes a feeding end and a shorting end electrically connected to the metal element. An orthogonal projection of the feeding element on the metal element is partially overlapped with the open slot. The feeding element forms a second resonant path extending from the feeding end to the shorting end. The antenna structure operates in a first band through the first resonant path and operates in a second band through the second resonant path.

Abstract: An electronic device including a first casing, a second casing, at least one first connecting unit and at least one feeding unit is provided. The first casing includes a conductive material. The second casing includes a conductive material. The first casing and the second casing are conducted with each other through the first connecting unit. The feeding unit is electrically connected to the first casing and has a feeding point and a capacitor component, wherein the capacitor component is connected with the feeding point, and the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and transmits an electromagnetic signal via the feeding unit.

Abstract: A slot antenna structure for an electronic tag includes a dielectric layer, a conductor layer, a slot area and a capacitance adjustment unit. The electronic tag includes an identification chip. The conductor layer is disposed on the dielectric layer. The slot area is disposed in the conductor layer and includes an open slot, an open end and at least one closed slot. The open end is located at an edge of the conductor layer and extends inwardly to form the open slot for disposing the identification chip. The open slot has two sidewalls, and the two sidewalls have at least one turning point at a bottom portion of the open slot to form the closed slot. The capacitance adjustment unit is disposed on a surface of the dielectric layer different from the conductor layer to correspond to the slot area, thereby generating a capacitance effect.

Abstract: An electronic device having antenna structure is provided. The electronic device includes a first body, a pivot assembly, a second body and an antenna structure. The pivot assembly is pivoted to the first body along a first axis. The second body is pivoted to the pivot assembly along a second axis. The antenna structure is disposed in the pivot assembly and has a first radiation portion, a second radiation portion and a third radiation portion. The first radiation portion and the second radiation portion have a slot therebetween to form a slot antenna. The third radiation portion forms a monopole antenna and is aligned to the slot. The third radiation portion and the slot are not coplanar.

Abstract: An electronic device including a first casing, a second casing, at least one first connecting unit and at least one feeding unit is provided. The first casing includes a conductive material. The second casing includes a conductive material. The first casing and the second casing are conducted with each other through the first connecting unit. The feeding unit is electrically connected to the first casing and the second casing, wherein the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and transmits an electromagnetic signal via the feeding unit.

Abstract: An electronic device having antenna structure is provided. The electronic device includes a first body, a pivot assembly, a second body and an antenna structure. The pivot assembly is pivoted to the first body along a first axis. The second body is pivoted to the pivot assembly along a second axis. The antenna structure is disposed in the pivot assembly and has a first radiation portion, a second radiation portion and a third radiation portion. The first radiation portion and the second radiation portion have a slot therebetween to form a slot antenna. The third radiation portion forms a monopole antenna and is aligned to the slot. The third radiation portion and the slot are not coplanar.

Abstract: An assembled wearable electronic device includes a first body, a second body and an engaging assembly. The first body has a primary system for providing the independent operation of the first body and producing a related first data. The second body has a secondary system and a fixing assembly. The secondary system is for providing the independent operation of the second body and producing a related second data. The engaging assembly is disposed at one of the first and second bodies. When the engaging assembly is located at a first position, the first and second bodies contact each other to be combined through the engaging assembly. When the engaging assembly moves to a second position, the first and second bodies are configured to be separated from each other. When the first and second bodies are connected to each other, the second data is read by the primary system.

Abstract: An electronic device including a first casing, a second casing, at least one first connecting unit and at least one feeding unit is provided. The first casing includes a conductive material. The second casing includes a conductive material. The first casing and the second casing are conducted with each other through the first connecting unit. The feeding unit is electrically connected to the first casing and has a feeding point and a capacitor component, wherein the capacitor component is connected with the feeding point, and the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and transmits an electromagnetic signal via the feeding unit.

Abstract: A multiband antenna includes a ground plane, a dielectric substrate and a radiating metal portion. The dielectric substrate is located at one side edge of the ground plane. The radiating metal portion is disposed on one surface of the dielectric substrate and includes a first metal portion and a second metal portion. The first metal portion is substantially of an L-shape. One end of the first metal portion is adjacent to the side edge of the ground plane and is the antenna's feeding point connected to a signal source, and the other end of the first metal portion is an open end. The second metal portion comprises a U-shape portion. The second metal portion includes a first open end and a second open end, which are respectively located on two opposite sides of the open end of the first metal portion.

Abstract: An electronic device including a first casing, a second casing, at least one first connecting unit and at least one feeding unit is provided. The first casing includes a conductive material. The second casing includes a conductive material. The first casing and the second casing are conducted with each other through the first connecting unit. The feeding unit is electrically connected to the first casing and the second casing, wherein the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and transmits an electromagnetic signal via the feeding unit.

Abstract: A multiband monopole slot antenna includes a ground plane, a dielectric substrate, a radiating portion, and a microstrip feedline. The dielectric substrate is connected to an edge of the ground plane and extends toward the opposite direction of the ground plane. The radiating portion is on the metal surface of the dielectric substrate and includes a first monopole slot, a second monopole slot and a third monopole slot. The microstrip feedline is on the surface opposite to the metal surface of the dielectric substrate. A first end of the microstrip feedline is connected to a signal source, and a second end of the microstrip feedline is an open end. The microstrip feedline passes over the first, second, and third monopole slots. A section of the microstrip feedline which passes over the third monopole slot is parallel to the third monopole slot, and the microstrip feedline is generally of a step shape.

Abstract: The present invention discloses a multiband antenna. The antenna comprises a ground plane, a dielectric substrate and a radiating metal portion. The dielectric substrate is located at one side edge of the ground plane. The radiating metal portion is disposed on one surface of the dielectric substrate and comprises a first metal portion and a second metal portion. The first metal portion is substantially of an L-shape. One end of the first metal portion is adjacent to the side edge of the ground plane and is the antenna's feeding point connected to a signal source, and the other end of the first metal portion is an open end. The second metal portion comprises a U-shape portion. The second metal portion comprises a first open end and a second open end, which are respectively located on two opposite sides of the open end of the first metal portion.

Abstract: The present invention discloses a multiband monopole slot antenna. The antenna comprises a ground plane, a dielectric substrate, a radiating portion, and a microstrip feedline. The dielectric substrate is connected to an edge of the ground plane and extends toward the opposite direction of the ground plane. The radiating portion is on the metal surface of the dielectric substrate and comprises a first monopole slot, a second monopole slot and a third monopole slot. The microstrip feedline is on the surface opposite to the metal surface of the dielectric substrate. A first end of the microstrip feedline is connected to a signal source, and a second end of the microstrip feedline is an open end. The microstrip feedline passes over the first, second, and third monopole slots. A section of the microstrip feedline which passes over the third monopole slot is parallel to the third monopole slot, and the microstrip feedline is generally of a step shape.