摘要:
Disclosed in the present disclosure is a Doherty power amplifier, comprising at least one carrier power amplifier and at least one peak power amplifier, which are connected in parallel. Each carrier power amplifier and each peak power amplifier comprise at least one set of carrier power amplification units and at least one set of peak power amplification units, respectively. Each set of carrier power amplification units is connected in parallel for power synthesis, each set of peak power amplification units is connected in parallel for power synthesis, each carrier power amplification unit and each peak power amplification unit comprises a two-way power amplification circuit, each two-way power amplification circuit is connected in parallel for power synthesis, and the two-way power amplification circuits each comprise medium-low power amplification tubes. The medium-low power amplification tubes are power amplification tubes the saturation power of which is less than or equal to a preset threshold. Also disclosed in the present disclosure is a power amplification method.
摘要:
The present invention discloses a power amplifier tube and a power amplification method, wherein, the power amplifier tube includes a High Electron Mobility Transistor (HEMT) power amplifier die and a Lateral Double-Diffused Metal-Oxide Semiconductor (LDMOS) power amplifier die, and the HEMT power amplifier die and the LDMOS power amplifier die are integrated in the same package. The present invention should be configured as a Doherty amplifier, which designs a power tube by using a breakthrough new power amplifier die combination, and can achieve high efficient power amplification on the basis of ensuring a small volume of the power amplifier tube, compared with the existing Doherty amplifiers each of which uses the LDMOS power amplifier die.
摘要:
The present invention relates to a power amplifier apparatus and power amplifier circuit thereof, and the power amplifier circuit uses the Doherty circuit structure, and the power amplifier circuit uses high voltage heterojunction bipolor transistor (HVHBT) power amplifiers to achieve a carrier amplifier and a peak amplifier of the Doherty circuit structure. The power amplifier apparatus and power amplifier circuit thereof in the present invention improves the efficiency of the power amplification.
摘要:
A power amplifier tube and a power amplification method are disclosed in the present invention. The power amplifier tube includes a high voltage heterojunction bipolar transistor (HVHBT) power amplifier die and a high electron mobility transistor (HEMT) power amplifier die, and the HVHBT power amplifier die and the HEMT power amplifier die are integrated in the same encapsulation. In the present invention, it should be configured as a Doherty amplifier, and the power tube is designed in a breakthrough combination manner of new power amplifier dies, compared with all the existing Doherty amplifiers which employ LDMOS power amplifier dies, the power amplification with high efficiency can be achieved on the basis of ensuring small volume of power amplifier tube.
摘要:
The present invention relates to a power amplifier apparatus and a power amplifier circuit thereof, the power amplifier circuit uses Doherty circuit structure, and the final stage power amplifier circuit uses high electron mobility transistor (HEMT) power amplifiers to achieve a Carrier amplifier with the Doherty circuit structure and a Peak amplifier with the Doherty circuit structure. The power amplifier apparatus and a power amplifier circuit thereof in the present invention improves the efficiency of the power amplifier.
摘要:
The present invention discloses a Doherty power amplifier apparatus and a power amplification method. The apparatus includes an auxiliary power amplifier apparatus and a main power amplifier apparatus, the auxiliary power amplifier apparatus is used to amplify signal power by adopting a Laterally Diffused Metal Oxide Semiconductor (LDMOS) device; and the main power amplifier apparatus is used to amplify signal power by adopting a High Electron Mobility Transistors (HEMT) device. The present invention adopts the HEMT device as the main power amplifier. Compared with the existing Doherty power amplifier in which both the main power amplifier and the auxiliary power amplifier adopt LDMOS, with the present invention, the power amplifier efficiency of the main power amplifier in the Doherty power amplifier can be enhanced, thereby making the power amplifier efficiency of the whole Doherty power amplifier be substantially increased.
摘要:
Disclosed is a Doherty power amplifier apparatus, including: a drive amplifier circuit, a power splitter circuit and a power combiner circuit, wherein the power splittercircuit is connected to the drive amplifier circuit, the apparatus further comprising: a carrier amplifier circuit and a peak amplifier circuit connected in parallel between the power splitter circuit and the power combiner circuit, wherein the carrier amplifier circuit comprises one or more parallel carrier amplification branches, wherein each carrier amplification branch comprises a multi-stage carrier amplifier apparatus, the multi-stage carrier amplifier apparatus is used for achieving multi-stage carrier amplification; and the peak amplifier circuit comprises one or more parallel peak amplification branches, wherein each peak amplification branch comprises a multi-stage peak amplifier apparatus, the multi-stage peak amplifier apparatus is used for achieving multi-stage peak amplification. In the present invention, the consistency and manufacturability of batch manufacture of power amplifiers are good.
摘要:
The present invention discloses a Doherty power amplifier and a method for implementing the Doherty power amplifier. The Doherty power amplifier includes a peak amplifying branch and a carrier amplifying branch, wherein, the peak amplifying branch includes a radio frequency switch, and the radio frequency switch is configured to control on/off of a last stage peak power amplifier in the peak amplifying branch; wherein, a high voltage heterojunction bipolar transistor (HVHBT) device is adopted for a last stage carrier power amplifier of the carrier amplifying branch, and a laterally diffused metal oxide semiconductor (LDMOS) device is adopted for the last stage peak power amplifier of the peak amplifying branch of the power amplifier. By the present invention, it avoids that the peak power consumption is increased when the peak power amplifier is on ahead of time and enhances the efficiency of the whole power amplifier.
摘要:
The present invention relates to a power amplifier apparatus and power amplifier circuit, and the power amplifier circuit uses the Doherty circuit structure, and uses a high voltage heterojunction bipolor transistor (HVHBT) power amplifier to achieve a Carrier amplifier of the Doherty circuit structure, and uses lateral double-diffused metal oxide semiconductor (LDMOS) to achieve a Peak amplifier. The power amplifier apparatus and power amplifier circuit in the present invention improves the efficiency of the power amplifier.
摘要:
The present invention discloses a Doherty power amplifier and an implementation method thereof. A peak amplifying circuit of the Doherty power amplifier comprises a radio frequency switching circuit configured to control turn-on of the peak amplifying circuit; wherein a last stage carrier amplifier of a carrier amplifying circuit of the power amplifier uses a HVHBT device, and a last stage peak amplifier of the peak amplifying circuit of the power amplifier uses a GaN device. The present invention avoids the shortcoming when the peak branches in the Doherty power amplifier are turned on ahead of time, decreases power consumption of the peak amplifier and improves the batch efficiency of the whole Doherty power amplifier.