A 6 Gb/s 6 pJ/b 5mm-Distance Non-Contact Interface for Modular Smartphones Using Two-Fold Transmission Line Coupler and High EMC Tolerant Pulse Transceiver
A 6 Gb/s 6 pJ/b 5mm-Distance Non-Contact Interface for Modular Smartphones Using Two-Fold Transmission Line Coupler and High EMC Tolerant Pulse Transceiver
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适用于模块化智能手机的 6 Gb/s 6 pJ/b 5mm 距离非接触式接口，采用两重传输线耦合器和高 EMC 耐受脉冲收发器
DOI：
10.1109/jssc.2016.2539339
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发表时间：
2016
影响因子：
5.4
通讯作者：
and Tadahiro Kuroda
中科院分区：
文献类型：
--
作者：
Atsutake Kosuge;Junichiro Kadomoto;and Tadahiro Kuroda
已经开发了一种用于模块化智能手机的非接触式接口，该接口可以以最大6 Gb/s的MIPI速率提供数据连接。提出了一种用于布局面积受到严格限制的模块化智能手机的双折叠传输线耦合器，其是具有宽带宽的小尺寸耦合器。对于5 mm的通信距离，耦合器的尺寸为6 mm 2，比传统耦合器小1/24。由于许多无线通信组件（例如LTE、WiFi和GPS收发器）被组装在小模块中，因此非接触式接口与无线收发器之间的干扰应当被抑制。为了提高耦合器的抗干扰能力和减少不必要的辐射，提出了一种电磁兼容的鲁棒脉冲收发器。使用边沿计数时钟恢复电路的同步接收机提高了抗噪性，而双相脉冲发射机降低了GPS频带中的噪声辐射。在BER <; 10- 12的情况下，当耦合器间距为2 mm时，数据连接上没有LTE或WiFi的EMS信号，当耦合器间距为10 mm时，GPS信号上没有EMI。与现有技术相比，实现了最高的能量效率（6 pJ/B）和空间效率（1.2 mm 2/1 mm距离）。
A non-contact interface for modular smartphones that can provide a data connection at a maximum MIPI rate of 6 Gb/s has been developed. A two-fold transmission line coupler, which is a small-size coupler that has a wide bandwidth, is proposed for modular smartphones, where the layout area is strictly limited. The coupler size is 6 mm2for a 5 mm communication distance, which is 1/24 smaller than the conventional coupler. Since many wireless communication components, such as LTE, WiFi, and GPS transceivers, are assembled in a small module, the interference between the non-contact interface and the wireless transceivers should be suppressed. To improve noise immunity and reduce unwanted radiation from the coupler, an electromagnetic-compatibility robust pulse transceiver is proposed. A synchronous receiver using an edge counting clock recovery circuit improves noise immunity, and a bi-phase pulse transmitter reduces noise radiation in the GPS band. There is no EMS by LTE or WiFi signals on the data connection at BER <; 10-12when the coupler is separated by a distance of 2 mm and no EMI on GPS signals at a separation of 10 mm. Compared with the state-of-the-art result, the highest energy efficiency (6 pJ/b) and space efficiency (1.2 mm2/1 mm distance) is achieved.