Abstract: An antenna system adapted for a communication device has a common antenna with a predetermined length, an AM matching circuit matching with the common antenna and an FM matching circuit matching with the common antenna. A switch alternatively electrically connects the common antenna to the AM matching circuit and the FM matching circuit for achieving the AM function and FM function.

Abstract: A method of making a vertically structured light emitting diode includes: providing a sacrificial substrate having first and second portions; forming a first buffer layer on a surface of the sacrificial substrate; forming a second buffer layer on a surface of the first buffer layer; forming a light emitting unit on a surface of the second buffer layer; forming a device substrate on a surface of the light emitting unit; etching the first portion of the sacrificial substrate such that the second portion of the sacrificial substrate remains on the first buffer layer; dry-etching the second portion of the sacrificial substrate; dry-etching the first buffer layer; and etching the second buffer layer. An etch rate of a material of the second buffer layer is lower than an etch rate of a material of the first buffer layer.

Abstract: An antenna structure includes a low frequency radiator, a high frequency radiator, and a connecting element. The connecting element has a rear end and a front end opposite to the rear end. A feeding element and a grounding element are extended from the front end of the connecting element and arranged adjacent to each other. The low frequency radiator includes a substantially inverted-L shaped first radiating part extended from the rear end of the connecting element, a meander-like second radiating part extended frontward from a front end of the first radiating part, and a substantially lying U-shaped third radiating part with a rearward opening extended from a free end of the second radiating part. The high frequency radiator includes a first extension piece extended frontward from the front end of the connecting element and located under the second radiating part with space.

Abstract: A multi-band antenna includes a first radiator resonating at a high frequency bans and a second radiator extended from a first end and toward a second end of the first radiator, and resonating at a low frequency range. An opening slot is formed between the first and the second radiators. A connecting slot and an end slot are formed in the second radiator. The width of the connecting slot is wider than the width of the opening slot. The connecting slot can prevent vectors potential caused by the second radiator from being neutralized. The electromagnetic coupling effect over the opening slot caused by the first radiator and the second radiator can pull down the low frequency range for reducing the size of the second radiator. Therefore, the multi-band antenna has a small size.

Abstract: An imitating natural plant fiber, preparation method thereof and the fabric made of it are provided. The preparation method includes the following steps: rolling and milling the mixture of plural first polyolefine chips, constant thermoplastic elastomer (TPE) and plural microcapsules which encapsulate essential oil extracted from natural plant in the twin-screw extruder, thus plural masterbatches can be made; melting and mixing the above masterbatches and plural second polyolefine which is same as the first one, thus a composite can be made, wherein the final content of the microcapsules is 1-32% by weight; and producing fibers by spinning, cooling, heat stretching, and heat setting. The fiber and the fabric made of it have durable natural plant aroma.

Abstract: A functional fiber, preparation method thereof and the fabric made of it are provided. The preparation method includes the following steps: rolling and milling plural first polyolefine chips, constant thermoplastic elastomer (TPE) and plural functional particles into plural masterbatches in twin-screw extruder; melting and mixing the plural functional masterbatches and plural second polyolefine chips which are the same as the first polyolefine into the composite material, wherein the final content of the plural functional particles are 1-10 wt. % based on the weight of the composite material; producing fibers with the composite material by spinning, cooling, heat stretching, and heat setting. The fiber may be made into fabric. The fiber and fabric have the function of deodorization, antibiosis, mildew-proof or generating negative ion and further improve the air filtration effect.

Abstract: A wireless device includes a housing having a shielding case and a dielectric case. The housing receives a printed circuit board and an antenna element. The printed circuit board has a feeding pad, a first ground pad and a second ground pad. The antenna has a feeding portion electronically coupled with the feeding pad of the printed circuit board and a ground portion electronically coupled with the shielding case for increasing ground dimension to improve antenna characteristic. The first and second ground pads of the printed circuit board electronically coupled with the shielding case for reducing coupling effect to improve antenna characteristic.

Abstract: A mobile phone has a housing and an antenna assembly configured in the housing. The housing has a front portion, a rear portion, a top portion, a bottom portion and a side portion. The antenna assembly has a telecommunication antenna operating as at least one wireless telecommunication band, a short range antenna operating as at least one wireless short range communication band, a first broadcast receiving antenna operating at first broadcast band and a second broadcast receiving antenna operating at second broadcast band. The first broadcast band is lower than the second broadcast band. Each of the antennas is configured in at lest one of the portions of the housing. The mobile phone operates at diverse wireless communication systems by using the antennas. The antennas are dispersed in the mobile phone for reducing electromagnetic interference and size of the mobile phone.

Abstract: An antenna connected with a matching circuit is mounted in a portable electronic device for receiving radio frequency band. The antenna includes a flat-plate coil with a shape thereof depending on a receiving space of the portable electronic device, a feeding portion defined at one free end of the coil for connecting with the matching circuit, and a grounding portion defined at the other free end of the coil. Accordingly, the antenna can be received in the portable electronic device with a small-occupied space, and is convenient for a user to listen to broadcast at random.

Abstract: An antenna device disposed in an electronic device which has a housing and a control circuit includes a metallic antenna, a carrier film and a plastic base. The metallic antenna is electrically connected with the control circuit for receiving and sending a signal. The carrier film bears the metallic antenna on one surface thereof. The plastic base is integrated with the assembly of the metallic antenna and the carrier film with the metallic antenna and sandwiched between the carrier film and the plastic base. The antenna device prevents the antenna from the wear and tear normally encountered during everyday use.

Abstract: An antenna structure includes a connection portion. A feed portion connecting to the connection portion defines a feed point thereon. An inductance portion extends from the connection portion, and a free end of the inductance portion connects to a ground end. A capacitance portion that is in a long narrow strip shape extends from the connection portion and is parallel with and adjacent to the ground end. And radiating portions connect to the connection portion respectively. The antenna structure employs the inductance portion, the capacitance portion and the ground end to simulate a LC parallel connection to substitute for an inductor and a capacitor. Therefore, the antenna structure achieves an aim of adjusting a resonance frequency and an impedance matching without the inductor and the capacitor, simplifying the design of the antenna structure, decreasing the manufacture cost and attaining a good performance.

Abstract: An assembled fan frame suitable for a case body includes a framework, a plurality of first assemblies, a back slab, and a plurality of second assemblies. The framework includes a fixing slab, a first side wall and a second side wall facing each other, and an accommodation space is defined to accommodate at least one fan module. The fixing slab has at least one first vent and a plurality of first assembling holes which are disposed around the first vent. The first assembly is disposed through the first assembling hole and fastens the fan module on the fixing slab. The back slab is vertically mounted on a surface of the case body and faces the fixing slab. The back slab includes at least one second vent and a plurality of second assembling holes. The second assembly is disposed through the second assembling hole and detachably fixes the framework on the back slab.

Abstract: The present invention provides to a method of producing fiber from tourmaline anion fiber; of which, polypropylene or polyethylene chip, TPE and submicrometer tourmaline particle are prepared and then rolled into submicrometer tourmaline agglomerate through granulation by double screw; then, take submicrometer tourmaline agglomerate and polypropylene or polyethylene chip, of which the content of tourmaline agglomerate accounts for 1˜10% of gross weight, and TPE for 1˜40% of gross weight; tourmaline agglomerate and polypropylene or polyethylene are melted into composite fiber or filter material via spinning, such that the fiber or filter material can yield anion and present outstanding gas permeability and mechanical property.

Abstract: An antenna system adapted for a communication device has a common antenna with a predetermined length, an AM matching circuit matching with the common antenna and an FM matching circuit matching with the common antenna. A switch alternatively electrically connects the common antenna to the AM matching circuit and the FM matching circuit for achieving the AM function and FM function.

Abstract: An antenna adapted for a digital television includes a base board defining a grounding region on a surface thereof, an antenna element made of conductive material and disposed on the base board, and a circuit disposed on the grounding region of the base board. The antenna element meanders like a plurality of series-connected zigzags along a lengthwise direction of the base board and gradually increases a transverse length thereof in process of meandering to show a substantially trapezoid outline. The circuit is electrically connected with one end of the antenna element having a shortest transverse length. That can increase frequency bandwidth of electromagnetic waves received, instead of extra metal parasitical elements. So the antenna can reduce the manufacture cost and make the structure simpler.

Abstract: A kind of multi-function health care self-cleaning shoe material comprises a shoe material main body (10). The shoe material main body (10) has a peripheral contour area (11), an inner area (12) and at least a sheet-form web body (120), which is located in the inner area (12) of the main body (10). The web body (120) is fixed on the peripheral contour area (11). The web body (120) is a web-form braid having plural fibers in warp direction (12) and plural fibers in weft direction (13). Many functional particles (130) are contained in the fibers.

Abstract: A digital television antenna includes a ground plane, a first receiving portion, a second receiving portion, a linking portion, a first connecting strip, a longitudinal receiving strip, a second connecting strip, a feed-in portion and a coupling portion. The grounding plane, the longitudinal receiving strip, the first connecting strip, the first receiving portion, the linking portion, the second receiving portion, the second connecting strip and the feed-in portion compose a unit which can receive a frequency range between 470 and 650 MHZ wireless signal, and the coupling portion couples with the unit to receive a frequency range between 650 and 890 MHZ wireless signal. Therefore, the digital television antenna can receive the 474-858 MHZ range wireless signal which is used in the digital television field.

Abstract: An antenna includes a first radiating conductor and a second radiating conductor. The first radiating conductor defines a first edge, a second edge and a lateral edge connecting the first edge and the second edge. The second radiating conductor has a main body spaced away from the second edge and connected to an end of the first radiating conductor far away from the lateral edge by a first connecting portion and extending towards the lateral edge. A free end of the main body bends to the second edge to form a second connecting portion spaced away from the lateral edge. A radiating end bends oppositely to the first radiating conductor from an end of the second connecting portion and is adjacent to the second edge. A feeding conductor and a grounding conductor are connected to an edge of the first radiating conductor different from the first edge and the lateral edge.