Abstract: A board-to-board connector assembly with a shielding structure includes a first circuit board, a first connector, a buffering conductor, a second circuit board, a second connector, and a shielding cover. The buffering conductor surrounds the first connector. The second circuit board is perpendicular to the first circuit board. A side edge of the second circuit board is provided with a first metal layer. The second connector is configured to be mated with the first connector along a mating direction. The shielding cover is disposed on the second circuit board and surrounds the second connector. When the second connector is mated with the first connector along the mating direction, the side edge of the second circuit board abuts against the buffering conductor, such that the first metal layer is electrically connected to the buffering conductor, and the shielding cover encloses the first connector.

Abstract: A jig module and circuit board testing method using thereof are provided. The jig module includes a guiding jig. The guiding jig is disposed inside a mechanism element along a travel direction, and a circuit board is disposed inside the mechanism element. The guiding jig includes a platform, a first alignment structure, and a second alignment structure. The platform has a top and a bottom, and the platform includes a plurality of through holes penetrating the top surface and the bottom surface. When the guiding jig is disposed inside the mechanism element, the first alignment structure aligns with the mechanical component along a first direction and a second direction, and the second alignment structure aligns with the circuit board along a third direction, such that the plurality of through holes can be aligned with a plurality of test points on the circuit board.

Abstract: An optical low-noise block down-converter for a satellite television system is disclosed. The optical low-noise block down-converter includes a first down-conversion module coupled to a satellite antenna of the satellite television system for converting a vertically polarized signal received by the satellite antenna into a first intermediate frequency signal, a second down-conversion module coupled to the satellite antenna for converting a horizontally polarized signal received by the satellite antenna into a second intermediate frequency signal, and a third down-conversion module having a first input terminal coupled between the satellite antenna and a first down-converter of the first down-conversion module and a second input terminal coupled between the satellite antenna and a second down-converter of the second down-conversion module for draining out part of the vertically polarized signal and the horizontally polarized signal to combine and convert into a legacy electrical signal.

Abstract: A heat dissipation module includes a centrifugal fan and a heat pipe. The centrifugal fan includes an outer housing, a heat dissipation fin array, a retaining wall, an impeller and a rotation-driving device. The outer housing includes an axial air inlet, an axial air outlet and a radial air outlet. The heat dissipation fin array is located at an inner wall of the radial air outlet. The retaining wall is located on a flat wall of the outer housing on which the axial air outlet is located. The retaining wall is in contact with an inner wall of an electronic device to collectively form a circulation channel so as to guide airflows output from the axial air outlet through the flat wall with which the heat dissipation fin array is aligned, and into the axial air inlet. The heat pipe is in contact with the heat dissipation fin array.

Abstract: A heat dissipation module includes a centrifugal fan and a heat pipe. The centrifugal fan includes an outer housing, a heat dissipation fin array, a retaining wall, an impeller and a rotation-driving device. The outer housing includes an axial air inlet, an axial air outlet and a radial air outlet. The heat dissipation fin array is located at an inner wall of the radial air outlet. The retaining wall is located on a flat wall of the outer housing on which the axial air outlet is located. The retaining wall is in contact with an inner wall of an electronic device to collectively form a circulation channel so as to guide airflows output from the axial air outlet through the flat wall with which the heat dissipation fin array is aligned, and into the axial air inlet. The heat pipe is in contact with the heat dissipation fin array.

Abstract: An optical low-noise block down-converter for a satellite television system is disclosed. The optical low-noise block down-converter includes a first down-conversion module coupled to a satellite antenna of the satellite television system for converting a vertically polarized signal received by the satellite antenna into a first intermediate frequency signal, a second down-conversion module coupled to the satellite antenna for converting a horizontally polarized signal received by the satellite antenna into a second intermediate frequency signal, and a third down-conversion module having a first input terminal coupled between the satellite antenna and a first down-converter of the first down-conversion module and a second input terminal coupled between the satellite antenna and a second down-converter of the second down-conversion module for draining out part of the vertically polarized signal and the horizontally polarized signal to combine and convert into a legacy electrical signal.

Abstract: A radio-frequency (RF) receiver device for a wireless communication system includes a first filter for filtering out a first RF signal within a first frequency band, a first frequency converter for using a first oscillating signal to convert the first RF signal of the first frequency band to generate a second RF signal, a second filter for filtering out a second RF signal within a second frequency band, a second frequency converter for using a second oscillating signal to convert the second RF signal of the second frequency band to generate a third RF signal, a third filter for filtering out a third RF signal within a third frequency band, and a controller for controlling the first frequency converter and the second frequency converter.

Abstract: An optical LNB capable of fast position-adjusting is employed in an LNBF. The optical LNB includes a down-converting device coupled to an OMT of the LNBF for down-converting a polarized signal for generating a first intermediate frequency signal, a branching device for branching the first intermediate frequency signal for generating a second and a third intermediate frequency signals, an electrical/optical converting device coupled to the branching device for converting the second intermediate frequency signal into an optical signal, and a power end for receiving power from a power supply and outputting the third intermediate frequency signal.

Abstract: A high isolation power divider is disclosed, which includes a substrate, a first split arm, a second split arm, a signal input unit, a connection unit, a ground layer, a slit. The signal input unit is coupled to the first split arm and the second split arm for receiving an input signal and dividing the input signal to the first split arm and second split arm. The connection unit is coupled to the first split arm and the second split arm, wherein the connection unit, the first split arm, and the second split arm are deposited on a first plane of the substrate, and surround a first area. The ground layer is deposited on the second plane of the substrate for providing grounding. The slit is formed in the ground layer, wherein at least a part of the slit is formed within a second area corresponding to the first area.

Abstract: A low-noise block downconverter includes a first down-converting circuit for down-converting and filtering a first polarization signal for outputting a first intermediate-frequency signal, a second down-converting circuit for down-converting and filtering a second polarization signal for outputting a second intermediate-frequency signal, wherein a frequency band of the first intermediate-frequency signal is the same as that of the second intermediate-frequency signal, an oscillator for generating an oscillating signal, outputted to the first down-converting circuit and the second down-converting circuit, a first optical transmitter coupled to the first down-converting circuit for converting the first intermediate-frequency signal into a first optical signal, and a second optical transmitter coupled to the second down-converting circuit for converting the second intermediate-frequency signal into a second optical signal.

Abstract: An optical LNB capable of fast position-adjusting is employed in an LNBF. The optical LNB includes a down-converting device coupled to an OMT of the LNBF for down-converting a polarized signal for generating a first intermediate frequency signal, a branching device for branching the first intermediate frequency signal for generating a second and a third intermediate frequency signals, an electrical/optical converting device coupled to the branching device for converting the second intermediate frequency signal into an optical signal, and a power end for receiving power from a power supply and outputting the third intermediate frequency signal.

Abstract: A band-pass filter includes an input port, an output port, and a plurality of resonators. The input port is utilized for receiving a radio frequency signal. The output port is utilized for outputting a filtered signal. The plurality of resonators are placed between the input port and the output port, and are utilized for band-pass filtering the radio frequency signal for generating the filtered signal, wherein the plurality of resonators comprise at least two different trace widths for matching the output impedance of the band-pass filter with the input impedance of a rear-stage circuit coupled to the output port.

Abstract: A low-noise block downconverter includes a first down-converting circuit for down-converting and filtering a first polarization signal for outputting a first intermediate-frequency signal, a second down-converting circuit for down-converting and filtering a second polarization signal for outputting a second intermediate-frequency signal, wherein a frequency band of the first intermediate-frequency signal is the same as that of the second intermediate-frequency signal, an oscillator for generating an oscillating signal, outputted to the first down-converting circuit and the second down-converting circuit, a first optical transmitter coupled to the first down-converting circuit for converting the first intermediate-frequency signal into a first optical signal, and a second optical transmitter coupled to the second down-converting circuit for converting the second intermediate-frequency signal into a second optical signal.

Abstract: The present invention discloses a biosensor, a biostrip and a manufacture method of determination of uric acid by a non-enzymatic reagent, and particularly to the applications of determination of uric acid by a non-enzymatic reagent, which is useful for the quantification of the uric acid levels in the samples.

Abstract: A high isolation power divider is disclosed, which includes a substrate, a first split arm, a second split arm, a signal input unit, a connection unit, a ground layer, a slit. The signal input unit is coupled to the first split arm and the second split arm for receiving an input signal and dividing the input signal to the first split arm and second split arm. The connection unit is coupled to the first split arm and the second split arm, wherein the connection unit, the first split arm, and the second split arm are deposited on a first plane of the substrate, and surround a first area. The ground layer is deposited on the second plane of the substrate for providing grounding. The slit is formed in the ground layer, wherein at least a part of the slit is formed within a second area corresponding to the first area.

Abstract: A band-pass filter includes an input port, an output port, and a plurality of resonators. The input port is utilized for receiving a radio frequency signal. The output port is utilized for outputting a filtered signal. The plurality of resonators are placed between the input port and the output port, and are utilized for band-pass filtering the radio frequency signal for generating the filtered signal, wherein the plurality of resonators comprise at least two different trace widths for matching the output impedance of the band-pass filter with the input impedance of a rear-stage circuit coupled to the output port.

Abstract: The present invention discloses a biosensor, a biostrip and a manufacture method of determination of uric acid by a non-enzymatic reagent, and particularly to the applications of determination of uric acid by a non-enzymatic reagent, which is useful for the quantification of the uric acid levels in the samples.