Abstract: A radio frequency amplification processing circuit includes: a radio frequency power amplifier, a transmitting antenna and a filter element; the radio frequency power amplifier is configured to perform radio frequency amplification on a modulated first wireless communication signal, and transmit, with a first line, the amplified first wireless communication signal to the transmitting antenna for transmission, or perform radio frequency amplification on a modulated second wireless communication signal, and transmit, with a second line, the amplified second wireless communication signal to the filter element; and the filter element is configured to filter the amplified second wireless communication signal, and transmit, also with the second line, the filtered second wireless communication signal to the transmitting antenna for transmission.

Abstract: A control circuit can be applied to a bias circuit including a first transistor and a second transistor with their gates connected. The first and second transistors are configured to amplify an input reference direct current (DC) current of the bias circuit to obtain a bias DC current. The control circuit includes: a detection circuit configured to compare a first DC voltage with a second DC voltage to obtain a comparison result; the first DC voltage being a drain DC voltage of the first transistor; and the second DC voltage being a drain DC voltage of the second transistor; and an adjustment circuit configured to adjust the first DC voltage and the second DC voltage by using the comparison result, such that the drain DC voltage of the first transistor equals the drain DC voltage of the second transistor when the bias circuit is in operation.

Abstract: A temperature compensation circuit for a radio frequency power amplifier includes: a temperature control circuit and a negative feedback circuit; the temperature control circuit is configured to generate a first electrical signal corresponding to a temperature, and according to the first electrical signal, adjust a second electrical signal at a first node; the negative feedback circuit is configured to provide, on the basis of the second electrical signal, a negative feedback signal to the radio frequency power amplifier by means of a second node; the second electrical signal is used to change the resistance value of the negative feedback circuit so as to adjust a negative feedback signal that is associated with the resistance value; the negative feedback signal is used to be inputted into the radio frequency power amplifier such that the gain of the radio frequency power amplifier changes.

Abstract: A radio frequency front end module includes an amplifier, a switch and a filter. The switch couples the amplifier with an antenna and connecting the amplifier with the filter, thereby forming a first signal channel in the radio frequency front end module, when a radio frequency signal needs to be transmitted and the transmitted radio frequency signal from a baseband chip needs to be filtered by the radio frequency front end module. The first signal channel can amplify and filter the radio frequency signal transmitted in the first signal channel. The switch can also couples the amplifier with the antenna, thereby forming a second signal channel in the radio frequency front end module, when the transmitted radio frequency signal does not need to be filtered by the radio frequency front end module. The second signal channel can amplify the radio frequency signal transmitted in the second signal channel.

Abstract: A bias circuit includes a first branch circuit, a second branch circuit, a current amplifier and a switch, wherein the first branch circuit is configured to shunt an inputted first current, and input a first branch current of the first current to a power supply ground; the second branch circuit is configured to shunt the inputted first current, and input a second branch current of the first current to the current amplifier; the current amplifier is configured to receive the second branch current of the first current and amplify the second branch current of the first current to serve as a bias current of a power amplifier connected to the bias circuit for outputting; and the switch is configured to switch different resistance values for a resistor in the first branch circuit and/or switch different resistance values for a resistor in the second branch circuit.

Abstract: A radio-frequency power amplification circuit includes: a power amplification sub-circuit and an output matching sub-circuit, wherein the power amplification sub-circuit is used for selecting, according to a received control signal corresponding to a radio-frequency mode, a power amplification parameter corresponding to the radio-frequency mode to amplify a received radio-frequency signal, and outputting the amplified radio-frequency signal; the output matching sub-circuit is connected to the power amplification sub-circuit and is used for receiving the amplified radio-frequency signal, and transmitting, according to the control signal, the amplified radio-frequency signal by using an impedance corresponding to the radio-frequency mode.

Abstract: A power control circuit includes: a voltage-current converter and a programmable current amplifier; the voltage-current converter is configured to detect an inputted output power control signal, and to convert the output power control signal to a control current and output same; and the programmable current amplifier is configured to receive the control current and output the amplified control current as a bias current of the power amplifier connected to the power control circuit.

Abstract: A signal transceiving control structure includes a power amplifier and N control branches. The N control branches are configured to control transmission of first signals or receiving of second signals of different network standards according to different control instructions. First ends of the N control branches are respectively connected to an output end of the power amplifier, second ends of the N control branches are respectively connected to N external output ends, third ends of the N control branches are respectively connected to N external input/output ends, wherein N is a positive integer greater than 1. The power amplifier is configured to perform power amplification on the first signals.

Abstract: A power control circuit includes a voltage control circuit and a current control circuit. The voltage control circuit is configured to detect an output power control signal that is inputted, convert the output power control signal into a control voltage and output the control voltage to the driver stage of a power amplifier connected to the power control circuit. The current control circuit is configured to detect an output power control signal that is inputted, convert the output power control signal into a control current and output the control current to the amplification stage of the power amplifier.

Abstract: A signal amplifier includes one or more driver stage amplifiers and a power stage amplifier. The one or more driver stage amplifiers are connected in series. The one or more driver stage amplifiers and the power stage amplifier are connected to the same power supply, such that each of the at least one driver stage amplifier forms a loop with the power stage amplifier. The signal amplifier can further include a wave trap unit configured to block an oscillation frequency in the loop. One terminal of the wave trap unit is connected to the loop. The other terminal of the wave trap unit is grounded.

Abstract: A Miller compensation circuit includes: a differential amplifier having an inverse input end configured to receive an input signal; an output transistor having an output end connected to a positive input end of the differential amplifier, a first end connected to a first power supply, a second end connected to an output end of the differential amplifier, and a third end being a voltage output end and connected to the positive input end and a load; a Miller capacitor connected to the output end of the differential amplifier; a follower; and a current sampling circuit configured to sample a first current of the output transistor. The load is also connected to a second power supply.

Abstract: A transistor circuit of low shutoff-state current includes: a first transistor, a transistor string, and a switch. The first transistor and the transistor string are connected in series. The switch is configured to shut off the circuit. The first transistor is configured to reduce the shutoff-state current flowing therethrough using the negative feedback effect of the transistor string when the circuit is in a shutoff state; and the transistor string is configured to reduce the shutoff-state current flowing therethrough using a negative gate-source electrode voltage difference thereof and the bulk effect of the transistor.

Abstract: A rare earth ions doped luminescent silicate glass is provided having the general formula of: 45SiO2-aLi2O-bMO-5Al2O3-3K2O-2P2O5:cEu2O3, wherein a is molar ratio of Li2O, b is molar ratio of MO and c is molar ratio of Eu2O3, wherein a+b=45, 25?a?35 and 0.025?c?0.50, and wherein MO is one or more of alkaline earth metal oxides. The luminescent glass can be prepared by simple progress, without pollution and at low cost. The resulting glass can be excited by UV LED chip and blue LED chip. Bright green light can be obtained by the sample under excitation of UV LED chip, while bright white light can be obtained under excitation of blue LED chip. The luminescent glass can be coupled with LED to obtain novel LED devices and provides potential applications in the field of semiconductor lighting.

Abstract: A hot recycling heating method for old asphalt mixture, includes the steps of: mixing old asphalt mixture with hot asphalt, with the temperature of the hot asphalt being higher than the temperature of the old asphalt mixture, but not higher than the standard temperature of heating asphalt; and heating the old asphalt mixture by heat exchange between the hot asphalt and the old asphalt mixture.

Abstract: A transistor circuit of low shutoff-state current includes: a first transistor, a transistor string, and a switch. The first transistor and the transistor string are connected in series. The switch is configured to shut off the circuit. The first transistor is configured to reduce the shutoff-state current flowing therethrough using the negative feedback effect of the transistor string when the circuit is in a shutoff state; and the transistor string is configured to reduce the shutoff-state current flowing therethrough using a negative gate-source electrode voltage difference thereof and the bulk effect of the transistor.

Abstract: A rare earth ions doped luminescent silicate glass is provided having the general formula of: 45SiO2-aLi2O-bMO-5Al2O3-3K2O-2P2O5:cEu2O3, wherein a is molar ratio of Li2O, b is molar ratio of MO and c is molar ratio of Eu2O3, wherein a+b=45, 25?a?35 and 0.025?c?0.50, and wherein MO is one or more of alkaline earth metal oxides. The luminescent glass can be prepared by simple progress, without pollution and at low cost. The resulting glass can be excited by UV LED chip and blue LED chip. Bright green light can be obtained by the sample under excitation of UV LED chip, while bright white light can be obtained under excitation of blue LED chip. The luminescent glass can be coupled with LED to obtain novel LED devices and provides potential applications in the field of semiconductor lighting.

Abstract: A hot recycling heating method for old asphalt mixture, includes the steps of: mixing old asphalt mixture with hot asphalt, with the temperature of the hot asphalt being higher than the temperature of the old asphalt mixture, but not higher than the standard temperature of heating asphalt; and heating the old asphalt mixture by heat exchange between the hot asphalt and the old asphalt mixture.

Abstract: A method of playing a Super Baccarat card game involves a fixed number of players in one round of game, wherein a Host is selected from the players to play against the rest of the players. The Host and the players invest a Capital and Investments respectively wherein each player selectively invests the respective Investment at a BANKER position or a PLAYER position. Two cards are dealt to the BANKER position and the PLAYER position respectively. By determining and comparing total point values of the BANKER cards and the PLAYER cards, which has a higher total point value wins the round of game. An action player is determined by an action number according to the higher point value, so as to determine which of the player to play against the Host and start to collect or payout the Investment until the Capital is totally paid out.

Abstract: A method of playing a Super Baccarat card game involves a fixed number of players in one round of game, wherein a Host is selected from the players to play against the rest of the players. The Host and the players invest a Capital and Investments respectively wherein each player selectively invests the respective Investment at a BANKER position or a PLAYER position. Two cards are dealt to the BANKER position and the PLAYER position respectively. By determining and comparing total point values of the BANKER cards and the PLAYER cards, which has a higher total point value wins the round of game. An action player is determined by an action number according to the higher point value, so as to determine which of the player to play against the Host and start to collect or payout the Investment until the Capital is totally paid out.