Configurable low-power full-digital transmitter

Abstract

The present invention belongs to the wireless communication technology field, and especially relates to a configurable low-power full-digital transmitter. The configurable low-power full-digital transmitter mainly comprises a configurable baseband signal processing circuit, a coordinate conversion circuit, a phase predistortion calibration module, a phase modulation module, an oversampling and noise shaping module, an amplitude control logic module, a full-digital dual-power difference power amplifier, a passive matching network, a low-dropout linear voltage stabilizer, a full-digital frequency synthesizer, a serial peripheral interface, an output load and other circuit modules. The transmitter is flexible in circuit and reconfigurable (the transmitter can reconfigure baseband signal bandwidth, radio frequency points and emission power, etc.), and can satisfy application requirements of different wireless communication standard protocols (such as a Bluetooth low energy consumption technology (BLE), a wireless body area network (WBAN) and narrowband internet of things (NB-IoT), 802 and 11ah based on a honeycomb). Besides, the transmitter is simple in structure, is a full-digital circuit, is low in power consumption, high integration and low in cost, and easy to apply in an actual wireless communication system, etc.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to a configurable low-power all-digital transmitter circuit. Background technique [0002] The rapid development of wireless communication technology has greatly changed people's lives. At present, smart phones and tablet computers supporting 2G / 3G / 4G mobile communication, wireless local area network, wireless metropolitan area network and other applications have become the standard configuration of people's daily life. In order to make people's life more convenient and efficient, the Internet of Things came into being. Compared with mobile communication systems, IoT communication has the characteristics of wide coverage, strong real-time performance, and flexible and configurable terminals. Driven by industry giants such as Qualcomm and Huawei, the international standard agreement organization 801.11ah is also continuously promoting IoT applications in the Sub-GHz f...

AI Technical Summary

Problems solved by technology

However, most all-digital transmitters mainly support short-range wireless communication in the 2.4GHz frequency band or 2G / 3G / 4G applications in some frequency bands, and there are very few transmitter chips compatible with the 802.11ah Internet of Things standard protocol in the Sub-GHz frequency band

In China, the Institute of Microelectronics of Tsinghua University, the Institute of Microelectronics of the Chinese Academy of Sciences, the Institute of Radio Frequency and Optoelectronic Integrated Circuits of Southeast University, and the National Integrated Circuit Laboratory of Fudan University have researched radio frequency transceivers, but they are compatible with the Internet of Things, BLE, etc. There are few researches on reconfigurable low-power all-digital RF transceivers with different protocol standards

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