Abstract: A broadband dual polarization antenna comprises a first metal reflective plane, for reflecting radio signals, to enhance the gain of the broadband dual polarization antenna; a first radiation portion, disposed on the first metal reflective plane with a first gap to the first metal reflective plane; a second radiation portion, disposed on the first radiation portion with a second gap to the first radiation portion; and a supporting element, for supporting and isolating the first metal reflective plane, the first radiation portion and the second radiation portion.

Abstract: A wideband antenna includes a grounding element electrically connected to a ground, a radiating element, a matching adjustment element electrically connected to the radiating element, a feed-in element electrically connected between the matching adjustment element and the grounding element for receiving feed-in signals, and a shorting element electrically connected between the matching adjustment element and the grounding element. A width of the matching adjustment element is related to a bandwidth of the wideband antenna.

Abstract: The present invention discloses an antenna system for a wireless communication device, which includes a first metal slice formed with a first slot structure, a second metal slice formed with a second slot structure, a first signal transmission line, and a second signal transmission line, wherein when the first metal slice and the second metal slice are not connected and have a distance between each other, a feeding direction of the first transmission corresponding to the first metal slice is substantially opposite to a feeding direction of the second transmission corresponding to the second metal slice; or when the first metal slice and the second metal slice are partially connected, a feeding direction of the first transmission corresponding to the first metal slice is substantially the same as or different to a feeding direction of the second transmission corresponding to the second metal slice.

Abstract: A circuit board structure for a low noise block down-converter is disclosed. The circuit board structure is used for transmitting a first radio-frequency signal and a second radio-frequency signal across each other, and includes a first substrate and a second substrate. The first substrate includes a first wire for transmitting the first radio-frequency signal, a first grounded wire formed in parallel to a side of the first wire, and a second grounded wire formed in parallel to another side of the first wire. The second substrate is electrically connected to the first substrate, and includes a second wire for transmitting the second radio-frequency signal, a third wire formed on a side of the second wire and a fourth wire formed on another side of the second wire.

Abstract: A radar system comprises a transmitting device comprising a reference frequency source, for generating a reference frequency signal; a direct-digital synthesizer, coupled to the reference frequency source, for generating a synthesized frequency signal according to the reference frequency signal; a phase lock loop, coupled to the direct-digital synthesizer, for converting the synthesized frequency signal to an output signal; a transmitting antenna, coupled to the phase lock loop, for emitting the output signal to the air; and a loop switch module, coupled to the phase lock loop, for switching the phase lock loop between an open loop mode and a closed loop mode; and at least one receiving device, for receiving at least one wireless signal, and processing the at least one wireless signal according to the output signal generated by the phase lock loop.

Abstract: A blind spot detection system comprises an alarm, capable of generating an alarm signal; a plurality of sensors, each for emitting a radio signal and receiving a reflecting signal of the emitted radio signal, to detect whether an object exists within a specific range and generate a detection result accordingly; and a control module, for receiving at least one vehicle information from the OBD system and controlling the alarm to generate the alarm signal according to the at least one vehicle information and a plurality of detection results generated by the plurality of sensors.

Abstract: An antenna includes a radiating element with a shape substantially conforming to a quadrilateral, a grounding and feed-in element, substantially surrounding the radiating element and having an opening formed near to a fourth side of the radiating element, wherein the grounding and feed-in element is electrically connected to a ground at one side of the opening and is electrically connected to a signal feed-in terminal at another side of the opening, a first connection element, having a terminal electrically connected to a first side and the fourth side of the radiating element, and another terminal electrically connected to the grounding and feed-in element, and a second connection element, having a terminal electrically connected to a third side and the fourth side of the radiating element, and another terminal electrically connected to the grounding and feed-in element.

Abstract: A bracket device for installing an electronic device on different objects is disclosed. The bracket device includes a bracket body, a supporting foot, a fixing member and a holding mechanism. The bracket body is for combining the electronic device. The supporting foot is connected to a side of the bracket body for supporting the bracket body and the electronic device. The fixing member is connected to another side of the bracket body. The fixing member includes at least one hanging structure for hanging the bracket body and the electronic device. The holding mechanism is installed on the fixing member in a detachable manner. The holding mechanism and the fixing member are cooperatively for holding a post, so as to fix the electronic device on the post.

Abstract: A dipole antenna is disclosed. The dipole antenna includes a feed-in terminal, a balun, a first radiator and a second radiator. The feed-in terminal is used for feeding in a radio-frequency signal. The balun is electrically connected to the feed-in terminal for driving out a return current of the dipole antenna to balance a feed-in impedance of the dipole antenna. The first radiator is electrically connected to the feed-in terminal and the balun for radiating the radio-frequency signal in a first frequency band. The second radiator is electrically connected to the first radiator, the feed-in terminal and the balun for radiating the radio-frequency signal in a second frequency band.

Abstract: The present invention discloses an RF device for a wireless communication device, including a grounding element, an antenna, including a radiating element, a feed-in element, a coupling element, a switch, coupled between the coupling element and the grounding element, for connecting or disconnecting the grounding element to the coupling element, such that the antenna respectively operates in a first frequency band and a second frequency band, and a grounding terminal, for coupling the grounding element, a capacitive sensing element, for sensing an environment capacitance within a specific range through the radiating element, at least one capacitor, for blocking a DC route from the grounding terminal to the grounding element.

Abstract: A decoupling circuit for enhancing isolation of two antennas is disclosed. The two antennas are substantially symmetrically disposed on a substrate. The decoupling circuit includes a first and second metal strips parallel disposed between the two antennas and electrically connected to a ground, a connection strip electrically connected between terminals of the first and second metal strips, to substantially form a doorframe structure, a first comb structure comprising a plurality of metal segments parallel to each other, disposed on the substrate, electrically connected to and perpendicular to the first metal strip, and a second comb structure comprising a plurality of metal segments parallel to each other, disposed on the substrate, electrically connected to and perpendicular to the second metal strip.

Abstract: A feed horn for a Low Noise Block down converter is disclosed. The feed horn includes a conical body for gathering satellite signals and a connector coupled to the conical body for coupling the feed horn to a waveguide of the Low Noise Block down converter to transmit the satellite signals to the waveguide. The conical body includes a plurality of corrugations, one of the plurality of corrugations includes a plurality of first openings, and a plurality of second openings, each of the plurality of second openings is formed between the two adjacent first openings, wherein the plurality of first openings and the plurality of second openings are used as slits to induce an interference effect to adjust a beam pattern of the feed horn.

Abstract: A fixing mechanism with easy assembly is disclosed. The fixing mechanism includes a shaft, a constraining member, a sleeve member, a resilient bushing, a pivot member and a handle. The constraining member is connected to an end portion of the shaft. The sleeve member sheathes the shaft. The resilient bushing sheathes the shaft and is disposed between the constraining member and the sleeve member. The pivot member is connected to the other end portion of the shaft. The handle is pivoted to the pivot member and abuts against the sleeve member. The handle pushes the sleeve member and drives the pivot member to activate the shaft to pull the constraining member when the handle pivots relative to the pivot member, so that the constraining member and the sleeve member cooperatively compress the resilient bushing, so as to make the resilient bushing generate a radial deformation.

Abstract: A fixing mechanism with easy assembly and for fixing an antenna holder and a supporting tube is disclosed. The fixing mechanism includes a shaft, a constraining member, a pivot member and a handle. The shaft is for disposing through a first fixing structure of the antenna holder and a second fixing structure of the supporting tube. The constraining member is connected to an end portion of the shaft, and the pivot member is connected to another end portion of the shaft. The pivot member and the constraining member are cooperatively for constraining the shaft from separating from the first fixing structure and the second fixing structure. The handle is pivoted to the pivot member, and the handle drives the pivot member to activate the shaft to pull the constraining member, so as to press the antenna holder and the supporting tube cooperatively with the constraining member.

Abstract: An antenna support device for supporting an antenna is disclosed. The antenna support device includes a support arm, a holder mounted on the support arm, a first connecting member rotatably connected to the holder around a first axis, a second connecting member rotatably connected to the first connecting member around a second axis, and an antenna bracket fixed on the second connecting member, wherein the antenna is fixed on the antenna bracket.

Abstract: A wideband antenna for a wireless communication device includes a grounding element, a radiating element, extending in a first direction, for transmitting and receiving wireless signals, a feed-in terminal electrically connected to the radiating element, for transmitting a feed-in signal to the radiating element, and a first parasitic radiating element, extending in the first direction, having a side separated from a side of the radiating element by a first distance, and another side separated from the grounding element by a second distance. The first distance allows the first parasitic radiating element and the radiating element to generate a coupling effect to form a slot antenna for transmitting and receiving wireless signals, and the second distance allows the first parasitic radiating element and the grounding element to generate a coupling effect to form a coupling path to the grounding element to increase bandwidth.

Abstract: A system and method for monitoring shelf inventory that combines bar code and RFID technologies to permit electronic data entry of item shelf assignments and real time reporting of item removal from display/dispensing storage shelves.

Abstract: An electronic apparatus includes an antenna, an antenna signal transmitting member, and an electronic device having an attachment part, and a speaker module installed in the attachment part and including a containing casing, a speaker device, and an audio signal transmitting member. The containing casing has a first hole formed thereon. A second hole is formed on the attachment part. The audio signal transmitting member is electrically connected to the speaker device for electrically connecting to the electronic device, so as to establish audio signal transmission between the speaker device and the electronic device. The antenna is formed integrally with the attachment part along a contour of the attachment part. The antenna signal transmitting member is formed on the attachment part and coupled to the electronic device. The antenna is coupled to the antenna signal transmitting member for establishing antenna signal transmission between the antenna and the electronic device.

Abstract: A screw mechanism for adjusting an angle of an antenna module is disclosed in the present invention. The screw mechanism includes a screw rod. The screw rod includes a rod portion. A thread is formed on a first area of the rod portion. An annular protrusion is formed on a second area of the rod portion, and an outer diameter of the annular protrusion is greater than an outer diameter of the rod portion. The screw rod further includes a handle disposed on an end of the rod portion adjacent to the second area. The screw mechanism further includes an accommodating component whereon a sunken part is formed. The sunken part is for accommodating the annular protrusion of the screw rod. The screw mechanism further includes a screw having a side hole. The screw is installed on the first area of the screw rod and moves along the thread.