Abstract: A transmission interface between at least a first module and a second module is proposed. The transmission interface includes at least two physical transmission mediums. Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated. The at least two physical transmission mediums include a first physical transmission medium arranged to carry a first multiplexed signal including a first IF signal and a reference clock signal. The first IF signal and the reference clock signal are at different frequencies.

Abstract: An integrated communication power system supplies power to a communication equipment, and the communication equipment includes a base station module and an antenna processing module. The integrated communication power system includes a first transfer switch, a first integrated conversion module, a DC conversion module, and an energy storage module. The first transfer switch selectively switches one of input sources and a renewable energy to be coupled to the first integrated conversion module to receive an input voltage. The first integrated conversion module converts the input voltage into a DC voltage, and the DC conversion module provides an output voltage to supply power to the antenna processing module according to the DC voltage. The energy storage module receives an energy storage voltage provided by the first integrated conversion module or the DC conversion module to supply power to the base station module.

Abstract: A power supply system with line loss reduction supplies power to a load through a power line. The power supply system includes a step-up converter, a detection circuit, and a control unit. The control unit sets a terminal voltage required by the load, controls an output voltage of the step-up converter to be terminal voltage, and acquires an output current corresponding to the terminal voltage to be a present current by the detection circuit. The control unit controls the output voltage to be a modulated voltage, and acquires an output current corresponding to the modulated voltage to be a modulated current by the detection circuit. The control unit adjusts the output voltage to be a first predetermined voltage according to the terminal voltage, the present current, the modulated voltage, and the modulated current.

Abstract: A transmission interface between at least a first module and a second module is proposed. The transmission interface includes at least two physical transmission mediums. Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated. The at least two physical transmission mediums include a first physical transmission medium arranged to carry a first multiplexed signal including a first IF signal and a reference clock signal. The first IF signal and the reference clock signal are at different frequencies.

Abstract: A transmission interface between at least a master module and a slave module is proposed. The transmission interface includes a predetermined number of physical transmission medium(s). Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated, and the predetermined number is not smaller than a number of intermediate frequency (IF) stream(s) to be transmitted.

Abstract: A manufacturing method of a screening tape for using in an unshielded signal transmission cable without a drain wire for transmitting analog or digital signals comprises the following steps: providing an insulating substrate having a continuous flat surface; providing a continuous conductive layer; providing an adhesion layer in a discontinuous manner on the continuous flat surface of the insulating substrate or on the continuous conductive layer; bonding the continuous conductive layer and the insulating substrate through the adhesion layer to form a laminated structure comprising the insulating substrate, the adhesion layer, and the continuous conductive layer; and stretching the laminated structure in a longitudinal direction of the laminated structure to divide the conductive layer into multiple discrete conductive blocks that are mechanically and electrically isolated from each other.

Abstract: A power supply system with line loss reduction supplies power to a load through a power line. The power supply system includes a step-up converter, a detection circuit, and a control unit. The control unit sets a terminal voltage required by the load, controls an output voltage of the step-up converter to be terminal voltage, and acquires an output current corresponding to the terminal voltage to be a present current by the detection circuit. The control unit controls the output voltage to be a modulated voltage, and acquires an output current corresponding to the modulated voltage to be a modulated current by the detection circuit. The control unit adjusts the output voltage to be a first predetermined voltage according to the terminal voltage, the present current, the modulated voltage, and the modulated current.

Abstract: An integrated communication power system supplies power to a communication equipment, and the communication equipment includes a base station module and an antenna processing module. The integrated communication power system includes a first transfer switch, a first integrated conversion module, a DC conversion module, and an energy storage module. The first transfer switch selectively switches one of input sources and a renewable energy to be coupled to the first integrated conversion module to receive an input voltage. The first integrated conversion module converts the input voltage into a DC voltage, and the DC conversion module provides an output voltage to supply power to the antenna processing module according to the DC voltage. The energy storage module receives an energy storage voltage provided by the first integrated conversion module or the DC conversion module to supply power to the base station module.

Abstract: A transmission interface between at least a master module and a slave module is proposed. The transmission interface includes a predetermined number of physical transmission medium(s). Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated, and the predetermined number is not smaller than a number of intermediate frequency (IF) stream(s) to be transmitted.

Abstract: A class-F power amplifier (PA) with a matching network is disclosed herein. The class-F PA comprises a first switch and a second switch operating in differential mode, with a second harmonic trap circuitry selectively terminating the drain terminals to ground at a second harmonic frequency. The second harmonic trap circuitry comprises a plurality of lumped inductive and capacitive components. The PA further comprises a common mode trap and a matching network to reduce the imbalance of the drain terminal impedance between first harmonics and third harmonics.

Abstract: A converter includes a switching circuit, a resonant circuit, a rectifying circuit, and a transformer including a primary winding, and a secondary winding. The switching circuit is configured to convert a DC input voltage to a switching signal. The resonant circuit is electrically coupled to the switching circuit and configured to receive the switching signal to provide a primary current. The primary winding is coupled to the resonant circuit. The rectifying circuit is coupled to the secondary winding and configured to rectify a secondary current outputted by the secondary winding so as to provide an output voltage. The resonant circuit includes a variable inductor to adjust the characteristic curve of the converter.

Abstract: A converter includes a switching circuit, a resonant circuit, a rectifying circuit, and a transformer including a primary winding, and a secondary winding. The switching circuit is configured to convert a DC input voltage to a switching signal. The resonant circuit is electrically coupled to the switching circuit and configured to receive the switching signal to provide a primary current. The primary winding is coupled to the resonant circuit. The rectifying circuit is coupled to the secondary winding and configured to rectify a secondary current outputted by the secondary winding so as to provide an output voltage. The resonant circuit includes a variable inductor to adjust the characteristic curve of the converter.

Abstract: An inverter and a control method are disclosed herein. The inverter includes a first switching circuit, a second switching circuit, and a DC-AC converting circuit. The first switching circuit is configured to selectively switch between connecting a first input terminal receiving an AC source and an output terminal of the inverter, and connecting a second input terminal receiving a DC source and the output terminal of the inverter. The second switching circuit is configured such that the first input terminal and the output terminal are connected during the switching process of the first switching circuit. The DC-AC converting circuit is electrically coupled between the second input terminal and the first switching circuit and configured to be operated in a current control mode to convert the DC source to AC power when the first switching circuit is switched to connect the second input terminal and the output terminal.

Abstract: A class-F power amplifier (PA) with a matching network is disclosed herein. The class-F PA comprises a first switch and a second switch operating in differential mode, with a second harmonic trap circuitry selectively terminating the drain terminals to ground at a second harmonic frequency. The second harmonic trap circuitry comprises a plurality of lumped inductive and capacitive components. The PA further comprises a common mode trap and a matching network to reduce the imbalance of the drain terminal impedance between first harmonics and third harmonics.

Abstract: An inverter and a control method are disclosed herein. The inverter includes a first switching circuit, a second switching circuit, and a DC-AC converting circuit. The first switching circuit is configured to selectively switch between connecting a first input terminal receiving an AC source and an output terminal of the inverter, and connecting a second input terminal receiving a DC source and the output terminal of the inverter. The second switching circuit is configured such that the first input terminal and the output terminal are connected during the switching process of the first switching circuit. The DC-AC converting circuit is electrically coupled between the second input terminal and the first switching circuit and configured to be operated in a current control mode to convert the DC source to AC power when the first switching circuit is switched to connect the second input terminal and the output terminal.

Abstract: A digitally-controlled oscillator (DCO) includes a first capacitor array and a second capacitor array responsive to an integer part and a fractional part of a digital control word, respectively. The mismatch measurement of the DCO includes a first settling phase and a second settling phase. In the first settling phase, the first capacitor array is fixed to have one capacitive value, and the second capacitor array is adjusted for making the DCO frequency locked to a target value. In the second settling phase, the first capacitor array is fixed to have another capacitive value, and the second capacitor array is adjusted for making the DCO frequency locked to the same target value. The capacitor mismatches are estimated according to characteristic values derived from the digital control word adaptively adjusted in the first setting phase and the second setting phase.

Abstract: A tunable inductor includes a main wiring and at least one tuning module. The main wiring is arranged to encircle an inductor area of the tunable inductor. In addition, the tuning module is arranged to couple associated nodes of the main wiring. For example, each tuning module of the at least one tuning module includes a first switch positioned within the inductor area, and further includes at least one auxiliary wiring. When the first switch is turned on, the tuning module couples two nodes of the main wiring, where the at least one auxiliary wiring is arranged to couple the two nodes when the first switch is turned on. In particular, a patterned ground plane is arranged to decrease the energy loss of the tunable inductor, and more particularly, to prevent the tunable inductor from suffering energy loss. The patterned ground plane includes some conductive sections forming a W-like shape.

Abstract: A calibration device arranged for calibrating an oscillating frequency of an oscillator includes: a phase locking device arranged to track a first reference clock generated by the oscillator until a feedback clock is phase-aligned with the first reference clock, and then arranged to track a second reference clock generated by the oscillator until a phase difference between the second reference clock and the feedback clock is a static phase difference, wherein the feedback clock is generated by dividing an output oscillating signal of the phase locking device by a divisor; an adjusting circuit arranged to adjust the divisor into an updated divisor to reduce the static phase difference between the second reference clock and the feedback clock; and a calibrating circuit arranged to calibrate the oscillating frequency of the oscillator according to the updated divisor, wherein the second reference clock is generated by varying a control signal of the oscillator.

Abstract: A clock generating apparatus includes: a time-to-digital converter (TDC) arranged to convert a timing difference between a reference clock and a variable clock to generate a digital value; a calibrating device arranged to generate a control signal according to the digital value and the reference clock; a controllable oscillator arranged to generate an oscillating signal according to the control signal and the digital value; and a feedback device arranged to generate the variable clock to the TDC according to the oscillating signal, and the calibrating device calibrates the controllable oscillator to make the oscillating signal have a target oscillating frequency.

Abstract: A method for measuring mismatches in a digitally-controlled oscillator (DCO) includes: in a first settling phase, controlling a first capacitor array of the DCO to have a first capacitive value consistently, and controlling a second capacitor array of the DCO in a closed loop to make a frequency of the DCO locked to a target value; in a second settling phase, controlling the first capacitor array to consistently have a second capacitive value different from the first capacitive value, and controlling the second capacitor array in the closed loop to make the frequency of the DCO locked to the target value; and deriving an estimation from a difference value between a first characteristic value and a second characteristic value, wherein the first and second characteristic values are derived from the digital control word; and estimating the mismatches according to at least the estimation value.