课题组与华为公司合作完成的光纤到屋(FTTR)射频收发芯片设计发表在IEEE Microwave and Wireless Components Letters
发布时间：2022-11-12
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- 发布时间：
- 2022-11-12
- 文章标题：
- 课题组与华为公司合作完成的光纤到屋(FTTR)射频收发芯片设计发表在IEEE Microwave and Wireless Components Letters
- 内容：
Dear Prof. Gui: It is a pleasure to accept your manuscript entitled "A 5-6 GHz CMOS Beamforming Transceiver Front-End for Fiber-to-The-Room All-Optical Wi-Fi Solution" in its current form for publication in the IEEE Microwave and Wireless Components Letters.
课题组和华为公司光业务部近期合作完成的学术界和工业界第一款光纤到屋专用射频收发芯片样片的研究成果发表在IEEE微波理论与技术领域顶刊IEEE MWCL上。该工作是课题组和华为公司合作近两年完成的一项具有前沿性创新的工作。该芯片展示了一种全新的WiFi收发机架构，提出了一系列低功耗、低噪声、高线性度电路设计技术，实现了和现有学术界成果/工业界产品相比更低的功耗、更好的连接稳定性和抗干扰性。该芯片也是目前全世界范围内已知的第一款专门用于光纤到屋(FTTR)的WiFi收发芯片。课题组目前在该工作基础上已经完成了性能更优的多通道波束赋形版本收发机芯片设计。
原文链接：
https://ieeexplore.ieee.org/document/9973358/
Abstract —This letter presents a 5-6 GHz CMOS beamforming transceiver front-end with high linearity and low power consumption for Fiber-to-The-Room (FTTR) all-optical Wi-Fi Solution, which can greatly reduce the transmission power and eliminate signal mutual interference among access points compared with traditional architecture, by aggregating beams of multi-channel. The transmitter (TX) employs a high-linearity power amplifier, a variable-gain amplifier, a 5-bit passive attenuator (ATT) and a 4-bit passive phase shifter (PS). The receiver (RX) is composed of a single-to-differential variable gain low-noise amplifier (LNA), frequency-tuning buffers, a 5-bit ATT and a 4-bit PS. Implemented in a 55-nm CMOS technology, the measured OP1dB of TX is better than 12.1 dBm. The EVMs of the TX at 0 dBm output power with 80 MHz 256-QAM OFDM signal are better than -36.3 dB, and the EVMs of the RX at -40 dBm input power are better than -37.8 dB. The noise figure is 4.3 dB in high-gain mode.