Abstract: A planar helix antenna with two frequencies, comprising a circuit board with suitable area and thickness and an upper and a bottom surface on which several microstrip antenna sections are disposed in a an inclined and mutually spaced way, wherein, through holes are provided on the circuit board for conjunction ends of the antenna sections on the upper and bottom surfaces for electric connection to form a planar helix microstrip antenna; the top most end of the antenna sections has top loading, while the bottom end thereof is an out feeding point. The antenna sections get a high frequency harmonic oscillation point by coupling; while connection of these microstrip antenna sections on the front and the back sides can form by its electrical gross length a low frequency harmonic oscillation point. Such variation of space and top loading of the microstrip antenna sections can endue the dual frequency planar and miniaturized helix microstrip antenna with superior performance.

Abstract: A multi-frequency helix antenna with a helical column having its diameter, material, pitch of circles as well as the total length thereof preset, the top end of the helix antenna has a radially extending section bent inwardly along the central axis of the helical column itself, a predetermined length is bent integrally from the end of the radially extending section orthogonally to extend inwardly along the central axis of the helical column of said helix antenna itself, the antenna is endued with an alternative waving frequency value and the value of the capacity and inductance of the antenna match with each other to give the antenna an equivalent resistance to thereby form a complete harmonic oscillation.

Abstract: A hidden antenna device of a mobile phone, the mobile phone is comprised of an upper cover and a lower cover, a main electric circuit board is provided in the interior space formed by the two members. The lower cover has an antenna circuit printed at a suitable position on the inner bottom surface of the lower cover; the antenna circuit has a protruding end connecting point. A main electric circuit board in the body of the phone has on the rear surface thereof another connecting point in opposition to the aforesaid end connecting point. A ceramic layer and a matching electric circuit board layer having a desired frequency are provided between the antenna circuit and the main electric circuit board, so that when the upper cover and the lower cover are assembled, the connecting points connect with each other to form the antenna device which has no any exposed member to the exterior of the mobile phone.

Abstract: A gain structure of a stretchable antenna for mobile phones and especially of an antenna for minimized mobile phones, wherein, a quarter-wave coil antenna is built in a hole of a connecting member on the top of a mobile phone, one end of the coil antenna is pressed against a metallic conductive block in the connecting member; a spring sheet has its top folded end fixed on the metallic conductive block, and has the other end thereof extended in a hole provided on the top of the mobile phone to abut on an internal electric circuit board under a pressing force. A quarter-wave rod antenna is connected to the connecting member to be freely movable in and out of it. When the rod antenna is stretched out, a metallic bottom end sleeve thereof is pressed into the metallic conductive block to make electric connection therewith, this can increase gain in signal receiving and emitting of the minimized mobile phone.

Abstract: An antenna holder assembly includes a mount fixedly fastened to the shell of an antenna, a holder supported on the mount, the holder having a downward mounting rod inserted into the center through hole of the mount, an end cap fastened to the downward mounting rod to secure the holder to the mount, enabling the holder to be rotated on its own axis, and a spring bushing mounted within the center through hole of the mount around the downward mounting rod of the holder.

Abstract: A stretchable antenna for mobile phones including a fixed axle sleeve embedded in antecedent therein a fixed coil antenna, the axle sleeve forms requisite electric connection with the mobile phone on the body top of the latter, an antenna rod is freely moved to and fro in the axle sleeve and has on the top thereof an insulation end which is combined with a metallic end piece, a coil antenna is provided on the end piece, a metallic annular piece is provided beneath the metallic end piece; the shank of the antenna rod, the end piece, the annular piece and the coil antenna are enveloped with a coating by and positioned in injection molding, the bottom of the antenna rod connects a metallic sleeve; when the coil antenna is stretched, the end piece abuts on the annular piece to render the coil antenna to contact the antenna rod directly to form electric connection, when the antenna rod is retracted, extension of the antenna rod is limited by an abutting point to force the end piece to separate from the annular pie

Abstract: An antenna having a core holding a winding assembly on the inside for receiving/transmitting radio signal, and a resin shell molded on the core, wherein a metal shield is embedded in the resin shell and covered on one half of the periphery of the core to limit the direction of radiation of the radio frequency energy from the winding assembly, and to prevent the radiation from hurting the user's brain.

Abstract: A lighting circuit and antenna arrangement includes a receptacle covered with a transparent cap, a metal coil holder mounted in the receptacle and insulated by insulative means, a coil mounted on the metal coil holder inside the transparent cap, a LED holder block suspended inside the transparent cap above the metal coil holder within the coil, a LED installed in the LED holder block, and two diodes vertically connected between two opposite ends of the LED and the metal coil holder and forming with the metal coil holder and the LED a closed circuit.

Abstract: A signal receiving gain device for car mobile-phones, is comprised of a main body which includes a housing, an insertion connecting pipe is extended out from one end of the housing for inserting in an electric socket provided in a car, the housing can hold therein an electric circuit board of which one end is connected to the insertion connecting pipe, the opposite end of the housing to the insertion connecting pipe is connected with an amplifying emitting antenna and an external antenna of the car respectively. When the external antenna receives a signal of the frequency within the specified range, a gain signal is obtained and is emitted by the amplifying emitting antenna, this further elevates the signal receiving capability of a mobile-phone in the car.

Abstract: A mobile-phone antenna device capable of insertion connecting directly to an external antenna, wherein, on the bottom of the exposed portion of the body of a fixed antenna thre is provided with an enlarged base of suitable size with one side thereof being provided with a socket; the base and the lateral socket are arranged to be higher slightly than the top surface of the mobile-phone, so that the socket can be connected with a corresponding plug on the external antenna. The antenna of the whole mobile-phone thus can be connected with the external antenna directly, this can eliminate inconvenience induced from repeated and optional insertion in and pulling out different antennae.

Abstract: A mobile telephone antenna including an alloy wire rod moved in a metal socket in a mobile telephone at the top, the alloy wire rod having a bottom end fixed with a first axial metal element, and a top end inserted through a second axial metal element, which is mounted in a stepped locating member inside an antenna cap, an insulative sleeve mounted around the top section of the stepped locating member and defining a space on the inside above the top section of the stepped locating member, a matching coil mounted around the stepped locating member and the insulative sleeve and stopped between the bottom section of the stepped antenna and the inside wall of the antenna cap, and a contact terminal fixedly fastened to the top end of the alloy wire rod and moved in the space between a first position in which the antenna terminal disposed in contact with the second axial metal element and the stepped locating member and the mobile telephone antenna is collapsed, and a second position in which the antenna terminal i

Abstract: A press locking connector for the antenna of a mobile-phone, the connector is more suitably connected to the antenna of a car and a mobile-phone and is formed a sheet member having at the upper portion thereof a collar with a diameter size coincident with that of the shaft of the antenna, the collar has an opening of suitable size; a hook is provided beside and at a slightly lower portion from the collar, a plug contact device is inserted in a through hole near the bottom of the sheet member, so that the collar opening can be aligned with the antenna and is clamped by a force exerted forwardly from behind on the shaft of the mobile-phone, the hook will snap hook into a recess provided on the top of the mobile-phone, the plug contact device is connected to a socket contact on the mobile-phone by a force exerted in one single direction.