High-efficiency power amplifier for Internet of Vehicles communication

A technology for power amplifiers and Internet of Vehicles, applied in power amplifiers, amplifiers, amplifiers with semiconductor devices/discharge tubes, etc., can solve the problems of low efficiency, limited power gain, and large deterioration of circuit parasitic losses.
CN110601668APending Publication Date: 2019-12-20重庆桴之科科技发展有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
重庆桴之科科技发展有限公司
Publication Date
2019-12-20

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Abstract

The invention discloses a high-efficient power amplifier for Internet of Vehicles communication. The high-efficient power amplifier comprises an input single-ended to differential power distribution phase shift network, a first self-biased three-stacked amplification network, a second self-biased three-stacked amplification network, a third self-biased three-stacked amplification network, a fourthself-biased three-stacked amplification network and an output differential to single-ended power synthesis phase shift network. According to the invention, the core architecture adopts the characteristics of high power and high gain of a self-biased three-stack amplification network formed by heterojunction bipolar transistors in a radio frequency microwave band; and meanwhile, the good parasiticparameter inhibition of the differential amplifier in the microwave frequency band is combined with the good power back-off efficiency characteristic of the Doherty amplification structure, so that the whole power amplifier obtains good high gain, high back-off efficiency and high power output capability.
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Description

technical field

[0001] The invention relates to the field of heterojunction bipolar transistor radio frequency power amplifiers and integrated circuits, in particular to a high-efficiency power amplifier chip circuit oriented to vehicle networking communication (C-V2X) application transmitting modules based on cellular technology . Background technique

[0002] With the rapid development of 5G wireless communication systems and radio frequency circuits, the Internet of Vehicles communication based on cellular technology in the 5.9 GHz frequency band also has unprecedented application space, and its radio frequency front-end transceiver circuits are also developing in the direction of high performance, high integration, and low power consumption. Therefore, the car networking communication market urgently needs the radio frequency power amplifier of the transmitter to have high linear output power and efficiency, reduce heat dissipation, and improve circuit stability, and the...

Claims

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