Abstract: A dual band antenna with improved radiation characteristic, comprising: a ground plane, formed at the bottom thereof; two impedance matching elements formed respectively at the two arms thereof while connecting to the ground plane so as to form a first joint and a second joint at the connections in respective; a first radiation unit, connected to the first joint, being formed like an arc connected to the first joint that is disposed concave to the bottom ground plane while extending from the first joint toward the second joint, and then turning vertically upward from the end of the arc for enabling the end of the vertical portion to connect to a second radiation unit; and the second radiation unit, being formed like an arc that is disposed concave to the bottom ground plane while extending from the joint with the first radiation unit toward the first joint.

Abstract: A printed antenna comprising a substrate, a first ground plane, a low frequency radiation, a high frequency radiation, a first matching portion, a second matching portion is provided. The first ground plane, the low frequency radiation portion, the high frequency radiation portion and the first matching portion are located on an upper surface of the substrate. The low frequency radiation portion is connected to the high frequency radiation portion, and the first matching portion is extended from the first ground plane and towards the high frequency radiation portion. The second matching portion is adjacent to the first matching portion but does not overlap the first matching portion.

Abstract: An antenna with electromagnetic interference (EMI) shelter is disclosed, which comprises: an EMI shelter, mounted on a substrate while covering the same; a radiation unit; an induction current steering unit, disposed at a position between the EMI shelter and the radiation unit; and a signal feed-in unit, electrically connected with the radiation unit; wherein, the induction current generated by the radiation unit when it is activating is guided to the EMI shelter through the guidance of the induction current steering unit, and then to be feed into a ground connection (GND), thereby, preventing the operation of radio circuit elements that are mounted on the substrate from being interfered by the electric wave resulting from the induction current. With the aforesaid configuration, not only the EMI effect can be significantly suppressed and the overall manufacturing cost of the antenna can be effectively reduced, but also the signal transmission efficiency is improved.

Abstract: An antenna is disclosed, which comprises: a substrate with a first surface and a second surface; a first radiation unit, disposed on the first surface; an insulating unit, disposed on the first surface on top of the first radiation unit; a first feed point, formed on the second surface and electrically connected to the first radiation unit; a grounding unit, disposed coplanar and connected with the first radiation unit; a first gap, formed between the first radiation unit and the grounding unit; and a second feed point, formed on the second surface and electrically connected to the grounding unit; wherein, as the second surface with the two feed points disposed thereon is adjacent to at least a metallic component and the radiation units are disposed on the first surface, the radiation units do not directly face the metallic component and thus prevent the same from being interfered by metallic shielding.

Abstract: A dual-band dual-antenna structure is provided. The dual-band dual-antenna structure comprises a substrate, a first antenna and a second antenna. The substrate comprises a first signal transport layer and a second signal transport layer, wherein the second signal transport layer is not coplanar with the first signal transport layer. The first antenna is disposed on the first signal transport layer and comprises a first U-shaped radiation element and a first polygon radiation element. The first polygon radiation element is disposed in an opening of the first U-shaped radiation element. The second antenna is disposed on the second signal transport layer but does not overlap under the first antenna. The second antenna comprises a second U-shaped radiation element and a second polygon radiation element. The second polygon radiation element is disposed in an opening of the second U-shaped radiation element.

Abstract: A dual-band antenna is disposed on a substrate having an antenna-mounted surface. The dual-band antenna includes a first radiating unit, a second radiating unit, and a feeding terminal. The first radiating unit is disposed opposite to the antenna-mounted surface of the substrate, and at least has a first side, a second side and, a third side. The first side is opposite to the third side, and the length of the first side is not equal to that of the third side. The second side is connected to the first side and the third side. The second radiating unit is connected to the first side of the first radiating unit. The feeding terminal is connected to the third side of the first radiating unit and the antenna-mounted surface of the substrate.

Abstract: A light source device comprises at least two reflecting members and light sources corresponding to each other. The reflecting member has a top surface and an arc bottom surface, and a reflecting curved surface extended toward the top surface from the arc bottom surface. The arc bottom surface forms a containing space for placing the light source. A light outgoing surface of the arc bottom surface is toward the top surface. The reflecting curved surface of each reflecting member is disposed by corresponding to each other. Accordingly, a light beam of each light source can achieve the effect of illuminating in a wide-angle through the reflection of each reflecting member, and the luminous flux can be uniformly distributed within a unit area.

Abstract: A wireless communication apparatus and a planar antenna thereof are provided. The wireless communication apparatus comprises a connecting port, a printed circuit board, and a planar antenna. The printed circuit board is connected to the connecting port, and the planar antenna is formed on the printed circuit board. The planar antenna comprises a radiation portion, a shorting portion, and a feeding portion. The feeding portion is connected to the radiation portion and the shorting portion, and the radiation portion and the shorting portion are in a bent shape so that the radiation portion, the shorting portion and the feeding portion are distributed in a rectangular region.

Abstract: A road lamp structure capable of regulating illumination light color includes at least a road lamp body and a control module. The road lamp body includes an illumination light source and an auxiliary light source. An inside of the auxiliary light source contains a plurality of light emitting diodes (LEDs) with different wavelengths. The auxiliary light source can emit light colors at a wavelength range of 540 to 640 nm. The control module turns on or turns off the auxiliary light source under different environments for visible degrees, so as to provide clear illumination effect for users.

Abstract: A wireless network receiver includes a circuit board and a connector structure. The connector structure is fixed on the circuit board, and the connector structure includes a connector and an antenna. The antenna, crossing the circuit board, and the connector are integrally formed with as a whole. The antenna includes a feeding connecting member, a horizontal radiator, a vertical radiator and a grounding connecting member. The horizontal radiator generates a horizontally polarized wave and is connected to the feeding connecting member. The vertical radiator generates a vertically polarized wave and is connected to the horizontal radiator. The grounding connecting member connects the horizontal radiator to the connector.

Abstract: A three-dimensional dual-band antenna including a first radiation portion, a second radiation portion, a connection portion, an impedance matching portion and a feeding portion is provided. The second radiation portion is located under the radiation portion and parallel with the first radiation portion. The connection portion is connected to the first side of the first radiation portion and extended downward vertically, for connecting the first radiation portion and the second radiation portion. The impedance matching portion is connected to a second side of the first radiation portion and extended downward vertically. The first side and the second side are opposite. The feeding portion is connected to the second side and extended downward vertically. The feeding portion receives a feeding signal. The first and the second radiation portion are operated at the first and the second bandwidth respectively, wherein the second bandwidth is in higher frequency than the first bandwidth.

Abstract: A dual-band dual-antenna structure is provided. The dual-band dual-antenna structure comprises a substrate, a first antenna and a second antenna. The substrate comprises a first signal transport layer and a second signal transport layer, wherein the second signal transport layer is not coplanar with the first signal transport layer. The first antenna is disposed on the first signal transport layer and comprises a first U-shaped radiation element and a first polygon radiation element. The first polygon radiation element is disposed in an opening of the first U-shaped radiation element. The second antenna is disposed on the second signal transport layer but does not overlap under the first antenna. The second antenna comprises a second U-shaped radiation element and a second polygon radiation element. The second polygon radiation element is disposed in an opening of the second U-shaped radiation element.

Abstract: A solid antenna is provided in the present invention. The solid antenna configured on a substrate having an electronic circuit disposed thereon, including: an antenna body having at least one bending portion and a signal feed-in portion by which the antenna body is electrically connected to the electronic circuit and secured to the substrate, wherein the at least one bending portion is configured to be across the substrate.

Abstract: An antenna is disclosed, which comprises: a substrate with a first surface and a second surface; a first radiation unit, disposed on the first surface; an insulating unit, disposed on the first surface on top of the first radiation unit; a first feed point, formed on the second surface and electrically connected to the first radiation unit; a grounding unit, disposed coplanar and connected with the first radiation unit; a first gap, formed between the first radiation unit and the grounding unit; and a second feed point, formed on the second surface and electrically connected to the grounding unit; wherein, as the second surface with the two feed points disposed thereon is adjacent to at least a metallic component and the radiation units are disposed on the first surface, the radiation units do not directly face the metallic component and thus prevent the same from being interfered by metallic shielding.

Abstract: A dual-band antenna is disposed on a substrate having an antenna-mounted surface. The dual-band antenna includes a first radiating unit, a second radiating unit, and a feeding terminal. The first radiating unit is disposed opposite to the antenna-mounted surface of the substrate, and at least has a first side, a second side and, a third side. The first side is opposite to the third side, and the length of the first side is not equal to that of the third side. The second side is connected to the first side and the third side. The second radiating unit is connected to the first side of the first radiating unit. The feeding terminal is connected to the third side of the first radiating unit and the antenna-mounted surface of the substrate.

Abstract: A printed antenna includes a radiating portion, a capacitance matching portion, an inductance matching portion, a feeding portion and a grounding portion. The capacitance matching portion is disposed parallel to the radiating portion. One end of the inductance matching portion is electrically connected with the radiating portion, and the other end of the inductance matching portion is electrically connected with the capacitance matching portion. The feeding portion, which is electrically connected with one inner side of the inductance matching portion, is located among the capacitance matching portion, the inductance matching portion, and the radiating portion. The feeding portion is roughly perpendicular to the radiating portion. The grounding portion is electrically connected with an outer side of the inductance matching portion. In addition, a printed antenna module including several printed antennas is also disclosed.

Abstract: A structure of dual symmetrical antennas adopted on a broadband product to operate within 2.0 GHz˜5.8 GHz, comprises a PCB, two first trapezoid antennas symmetrically aligned with one of parallel sides thereof on a surface of a PCB, and two second trapezoid antennas symmetrically aligned with each other with one of parallel sides thereof on another surface of the PCB opposite to the first trapezoid antennas, wherein the first trapezoid antennas and the second trapezoid antennas simultaneously enable the broadband product to operate at both a first frequency band and a second frequency band, and the second frequency band overlaps a part of the first frequency band.

Abstract: A dual band printed antenna includes a first metal sheet, a second metal sheet, a substrate and a conductive unit. The first metal sheet is triangular and has a slit and a feeding part. The slit is extended from a side to another side of the first metal sheet. The slit and the feeding part divide the first metal sheet into a first radiating part and a second radiating part. The second metal sheet has a breach and a grounding part. The breach is triangular and located opposite to the first metal sheet. The first and second metal sheets are disposed on the substrate. The first metal sheet is apart a distance from the second metal sheet. The conductive unit has a conductive body, which is electronically connected with the feeding part, and a grounding body, which is electronically connected with the grounding part. A dual band printed antenna module is also disclosed.

Abstract: A printed antenna includes a radiating portion, a capacitance matching portion, an inductance matching portion, a feeding portion and a grounding portion. The capacitance matching portion is disposed parallel to the radiating portion. One end of the inductance matching portion is electrically connected with the radiating portion, and the other end of the inductance matching portion is electrically connected with the capacitance matching portion. The feeding portion, which is electrically connected with one inner side of the inductance matching portion, is located among the capacitance matching portion, the inductance matching portion, and the radiating portion. The feeding portion is roughly perpendicular to the radiating portion. The grounding portion is electrically connected with an outer side of the inductance matching portion. In addition, a printed antenna module including several printed antennas is also disclosed.

Abstract: The present invention provides a dual band and dual mode flat antenna. The antenna structure comprises a substrate; a ground member configured on the substrate; an interdigital shape radiator having a first portion radiator and a second portion radiator configured on the substrate, wherein the second portion radiator being connected to a first end of said first portion radiator; and a feed line connected to the second end of the first portion radiator of the interdigital shape radiator.