Wireless transceiver with on-chip ultra-low power consumption

Abstract

The invention discloses a wireless transceiver with on-chip ultra-low power consumption, which comprises a duplexer, a variable gain radio-frequency front end, a pre-amplifier, a passive polyphase filter, an automatic gain amplifier, a comparison amplifier, a digital processing unit, a buffer, a frequency eliminator, a frequency synthesizer, a variable gain power amplifier, a direct phase modulator and a storage, wherein the duplexer, the variable gain radio-frequency front end, the pre-amplifier, the passive polyphase filter, the automatic gain amplifier and the comparison amplifier form a receiving chain which is used for receiving and processing a wireless signal and converting the wireless signal into a low intermediate frequency digital signal to be transmitted to a baseband processor; the direct phase modulator, the variable gain power amplifier and the duplexer form a transmitting chain which is used for modulating a baseband signal to carrier frequency and transmitting a wireless signal; and the duplexer can be shared by the receiving chain and the transmitting chain. By utilizing the wireless transceiver, the power consumption of the integral transceiver is reduced, and the IEEE (Institute of Electrical and Electronics Engineers) 802.15.4 protocol standard is compatibly met.

Description

technical field [0001] The invention relates to the technical field of wireless communication transceivers, in particular to an on-chip wireless transceiver with ultra-low power consumption. Background technique [0002] The Internet of Things is called the third wave of the world's information industry after computers and the Internet. It is based on the computer Internet and uses technologies such as RFID and wireless sensor networks to construct an "Internet of Things" that covers everything in the world. Things". The core technologies of the Internet of Things include radio frequency identification (RFID) devices, wireless sensor networks (WSN), etc. A large number of node devices need to work for a long time under the condition of battery power, which requires the communication system to meet the requirements of high-quality communication. It must have very low power consumption, so it is a key technology to design an ultra-low power consumption wireless transceiver de...

AI Technical Summary

Problems solved by technology

However, the current existing wireless transceiver devices based on ZigBee etc. have a power consumption of tens or even hundreds of milliwatts.

The structure of traditional wireless transceiver devices requires high-power digital / analog signal converters (DAC / ADC circuits) and active mixers (Mixer), which increase the power consumption of the system

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