Abstract: A crystal growth doping apparatus and a crystal growth doping method are provided. The crystal growth doping apparatus includes a crystal growth furnace and a doping device that includes a feeding tube inserted to the furnace body along an oblique insertion direction, and a storage cover and a gate tube that are disposed in the feeding tube. The feeding tube extends from an outer surface thereof to form a placement opening, and the placement opening is recessed from an edge thereof to form an upper recessed portion and a lower recessed portion along the oblique insertion direction. The storage cover includes a storage tank and a handle. When the storage cover is disposed in the gate tube body, the gate tube body is configured to isolate an inner space of the feeding tube from the placement opening.

Abstract: A method of growing a single crystal ingot includes growing a single crystal silicon ingot from a silicon melt in a crucible within an inner chamber, adding a volatile dopant into a feed tube, positioning the feed tube within an inner chamber at a first height relative to a surface of the melt, adjusting the feed tube within the inner chamber to a second height at a speed rate, and heating the volatile dopant to form a gaseous dopant as the feed tube is moved from the first height to the second height at the speed rate. Each of the second height and the speed rate are selected to control a vaporization rate of the volatile dopant. The method also includes introducing dopant species into the melt while growing the ingot by contacting the surface of the melt with the gaseous dopant.

Abstract: A method of growing a single crystal ingot includes growing a single crystal silicon ingot from a silicon melt in a crucible within an inner chamber, adding a volatile dopant into a feed tube, positioning the feed tube within an inner chamber at a first height relative to a surface of the melt, adjusting the feed tube within the inner chamber to a second height at a speed rate, and heating the volatile dopant to form a gaseous dopant as the feed tube is moved from the first height to the second height at the speed rate. Each of the second height and the speed rate are selected to control a vaporization rate of the volatile dopant. The method also includes introducing dopant species into the melt while growing the ingot by contacting the surface of the melt with the gaseous dopant.

Abstract: A multi-frequency antenna (1) includes a grounding portion (1) extending along a transversal direction; a radiating arm (11) extending along a transversal direction and disposed above the grounding portion; a connecting arm (12) connected to the grounding portion and the radiating arm; a capacitor (13) connected to the radiating portion and the connecting arm; and a cable (15) having an inner conductor connected to the connecting arm and an outer conductor connected to the grounding portion.

Abstract: A multi-band antenna includes a grounding element having an edge and a grounding point, a first radiating arm being substantially of L shape and located above the grounding element, a second radiating arm working at a first frequency band and being substantially of L shape above the first radiating arm, a third radiating arm working at a second frequency band and being substantially of rectangular metal patch parallel to the edge of the grounding element, and a feeding line including an inner conductor connected to the first radiating arm and an outer conductor connected to the grounding point of the grounding element. The feeding line, the first radiating arm, the grounding element commonly compose a slot operating at a third frequency band.

Abstract: A multi-band antenna (1) includes a grounding element (10) extending along a horizontal direction and including a side edge (101) with a connecting point (102) and a grounding point (103) distanced from the connecting point by a length, a first radiating element (11) disposed above and parallel to the grounding element (10), a second radiating element (12) apart from the first radiating element and extending upwardly from the side edge of the grounding portion, a connecting element (13) located between the first radiating element and the grounding element, a feeding point (134) disposed on the connecting element (13), and a feeding line (14) including an inner conductor (141) connected to the feeding point and an outer conductor (142) connected to the grounding point. The first radiating element operates in a first frequency band. The second radiating element defines a L-shaped configuration in a side view and operates in a second frequency band.

Abstract: A multi-band antenna includes a grounding element located on a first plane, a connecting element extending from the grounding element to form a slot between the connecting element and the grounding element, a conductive portion extending from the connecting element, a first radiating portion, a second radiating portion, and a third radiating portion. The first radiating portion is narrower than the conductive portion and extends from an end of the conductive portion along a first direction. The second radiating portion is connected to the first radiating portion and extends along a second direction opposite to the first direction. The third radiating portion is narrower than the first radiating portion and extends from an end of the connecting element.

Abstract: A multi-band antenna includes a grounding element having a first side, a radiating element separated form the first side of the grounding element, and a connecting element. The connecting element connects the grounding element to the radiating element and includes a first end slantwise extending from the grounding to form a first angle except a right angle between the connecting element and the grounding element.

Abstract: A multi-frequency antenna (1) includes a grounding portion (1) extending along a transversal direction; a radiating arm (11) extending along a transversal direction and disposed above the grounding portion; a connecting arm (12) connected to the grounding portion and the radiating arm; a capacitor (13) connected to the radiating portion and the connecting arm; and a cable (15) having an inner conductor connected to the connecting arm and an outer conductor connected to the grounding portion.

Abstract: A multi-frequency antenna includes a first antenna (1) and a second antenna (2) both operating at wireless wide area network, a third antenna (3) and a fourth antenna (4) both operating at wireless local area network. The first antenna, the second antenna, the third antenna and the fourth antenna are integrally made from a metal sheet and have a common grounding portion (50). The first and the second antennas have a first connecting portion (12) on which a feeding point (120) is located, and the third and the fourth antenna have a second connecting portion (34) on which another feeding point (340) is located.

Abstract: A multi-band antenna includes a grounding element having an edge and a grounding point, a first radiating arm being substantially of L shape and located above the grounding element, a second radiating arm working at a first frequency band and being substantially of L shape above the first radiating arm, a third radiating arm working at a second frequency band and being substantially of rectangular metal patch parallel to the edge of the grounding element, and a feeding line including an inner conductor connected to the first radiating arm and an outer conductor connected to the grounding point of the grounding element. The feeding line, the first radiating arm, the grounding element commonly compose a slot operating at a third frequency band.

Abstract: A multi-band antenna (1) includes a grounding element (10) extending along a horizontal direction and including a side edge (101) with a connecting point (102) and a grounding point (103) distanced from the connecting point by a length, a first radiating element (11) disposed above and parallel to the grounding element (10), a second radiating element (12) apart from the first radiating element and extending upwardly from the side edge of the grounding portion, a connecting element (13) located between the first radiating element and the grounding element, a feeding point (134) disposed on the connecting element (13), and a feeding line (14) including an inner conductor (141) connected to the feeding point and an outer conductor (142) connected to the grounding point. The first radiating element operates in a first frequency band. The second radiating element defines a L-shaped configuration in a side view and operates in a second frequency band.

Abstract: A multi-band antenna includes an insulative supporting member, an antenna stripe comprising a ground element, a first antenna used for wireless wide area net and a second antenna used on wireless local area net, wherein said first antenna comprises a first radiating portion with a horizontal first feeding tab, said first radiating portion is separated from the grounding element, said antenna stripe surrounds the supporting member, said first radiating portion is fixed on the supporting member and covers plural faces of the supporting member.

Abstract: A multi-band antenna, made by an integral plate and comprises a radiating element, a grounding element, a slit formed as part of the plate, and a feeding line; wherein horizontal conductive portion of said plate are separated from each other with said slit between them and serve as the radiating element and the ground element respectively; the feeding line, comprising an inner conductor connected with the radiating element and an outer conductor connected with the grounding element; wherein said radiating element comprising at least two radiating portions defining at least one radiating arm with gradually increasing width, and at least two radiating portion cooperatively acting to achieve a Ultra Wide Band antenna.

Abstract: A multi-band antenna used in a portable electrical device can operate in WWAN. The multi-band antenna includes a PCB, a first antenna body, and a second antenna body. The PCB has a first surface and an opposite second surface and defines a through hole extending from the first surface to the second surface. The first antenna body is formed on the first surface of the PCB comprising a first radiating element and a first grounding element. The second antenna body is formed on the second surface of the PCB. The second antenna body comprises a second radiating element, a second grounding element, and a connecting element connecting the second radiating element and the second grounding element. The first radiating element and the second radiating element electrically connect with each other via the through hole of the PCB. A feeding line has an inner conductor electrically connecting to the first radiating element and an outer conductor electrically connecting to the first grounding element.

Abstract: A multi-band antenna includes an insulative supporting member, an antenna stripe comprising a ground element, a first antenna used for wireless wide area net and a second antenna used on wireless local area net, wherein said first antenna comprises a first radiating portion with a horizontal first feeding tab, said first radiating portion is separated from the grounding element, said antenna stripe surrounds the supporting member, said first radiating portion is fixed on the supporting member and covers plural faces of the supporting member.

Abstract: A multi-band antenna includes a grounding element, a connecting element, a first radiating portion and a second radiating portion. The grounding element is located on a first plane. The connecting element extends upwardly from the grounding element to be defined as an L shape and comprises a longer first side and a shorter second side. The first radiating portion includes a first side and a second side. The second radiating portion is connected to the first radiating portion on a first point. The first radiating portion together with the second radiating portion forms a Z shape. The second side of the connecting element is connected to one of the two radiating portions on a second point.

Abstract: A multi-frequency antenna includes a first antenna (1) and a second antenna (2) both operating at wireless wide area network, a third antenna (3) and a fourth antenna (4) both operating at wireless local area network. The first antenna, the second antenna, the third antenna and the fourth antenna are integrally made from a metal sheet and have a common grounding portion (50). The first and the second antennas have a first connecting portion (12) on which a feeding point (120) is located, and the third and the fourth antenna have a second connecting portion (34) on which another feeding point (340) is located.

Abstract: An antenna assembly includes a supporter forming two different continuous first and second surfaces, and a monopole antenna assembled on the supporter and comprising a radiating element comprising a first radiating portion, a second radiating portion respectively worked at different frequency bands, and a grounding element separated from the radiating element; wherein the first radiating portion, the radiating portion and the grounding element connecting together across the first and second surfaces to form a solid antenna.

Abstract: A multi-band antenna includes a grounding element located on a first plane, a connecting element extending from the grounding element to form a slot between the connecting element and the grounding element, a conductive portion extending from the connecting element, a first radiating portion, a second radiating portion, and a third radiating portion. The first radiating portion is narrower than the conductive portion and extends from an end of the conductive portion along a first direction. The second radiating portion is connected to the first radiating portion and extends along a second direction opposite to the first direction. The third radiating portion is narrower than the first radiating portion and extends from an end of the connecting element.