住友电气工业株式会社已成功批量生产基于氟树脂的柔性印刷电路板（FPC）FLUOROCUIT™，该柔性印刷电路板在毫米波波段表现出高灵活性和低传输损耗，旨在实现5G及更高版本的通信。
Sumitomo Electric Industries, Ltd. has succeeded in mass production of FLUOROCUIT™, fluororesin-based flexible printed circuits (FPCs) that demonstrate a high flexibility and low transmission loss in the millimeter-wave band, aiming at communications for 5G and beyond.
在无线通信中，5G移动通信已开始在商业基础上使用。当前，sub-6频段（例如3.5和4.7GHz）正在世界各地用于5G通信。为了提高传输速度，期望将使用的频率增加到毫米波段（例如26GHz和28GHz）。此外，考虑到6G移动通信的推出以及考虑到雷达和传感器的实际使用，甚至将在毫米波频段内甚至更高的频率被完全使用。
In wireless communication, 5G mobile communication has started to be used on a commercial basis. Currently, the sub-6 band (such as 3.5 and 4.7 GHz) is being used for 5G communication in various parts of the world. To increase the transmission speed, it is expected that the frequency used will be increased to the millimeter-wave band (such as 26 GHz and 28 GHz). Furthermore, even higher frequencies in the millimeter-wave band will be used on a full scale, with the launch of 6G mobile communication and the practical use of radars and sensors in mind.
在此背景下，住友电工已实现了基于氟树脂的柔性FPC的批量生产，其特征在于毫米波段的传输损耗低。
Against this backdrop, Sumitomo Electric has achieved mass production of flexible fluororesin-based FPCs, which are characterized by a low transmission loss in the millimeter-wave band.
与已经开始用于高频电路的液晶聚合物（LCP）相比，氟树脂的特征在于介电常数和介电损耗因子低，从而有可能进一步降低传输损耗（在40 GHz频带中的传输损耗约为40％）。频率越高，与LCP材料对比越明显。由于这些特性，氟树脂作为高频波段优异的电路材料受到了广泛的关注。
Fluororesins are characterized by low permittivity and dielectric dissipation factor compared to those of liquid crystal polymers (LCPs), which have started to be used for high-frequency circuits, thereby making it possible to further reduce the transmission loss (approximately 40% in the 40 GHz band). The higher the frequency, the more markedly the characteristics are demonstrated. Due to these characteristics, fluororesins have attracted much attention as circuit materials with excellent characteristics in the high-frequency band.
与液晶聚合物（住友电工制造的FPC）
的传输损耗的比较
住友电工集团长期从事氟树脂加工，并开发了各种产品。住友电工凭借其积累的专业知识和技术，实现了氟树脂基FPC的批量生产，而这种氟树脂FPC加工难度很大。氟树脂基FPC与常规FPC一样柔韧性，因此适合在需要柔韧性的区域（例如曲面）中进行布线。
The Sumitomo Electric Group has long been engaged in fluororesin processing and has developed various products. By harnessing its accumulated expertise and technology, Sumitomo Electric has achieved mass production of fluororesin-based FPCs, whose processing was considered to be difficult. The fluororesin-based FPCs are as flexible as conventional FPCs and therefore are suited to wiring in areas where flexibility is required, such as curved surfaces.
通过充分利用这些特性，预计基于氟树脂的FPC将获得广泛的应用。虽然在数据中心，5G基站和终端设备中用作书写材料，但它们也可用作这些5G基站和设备的天线。雷达设备和传感器也有望成为基于氟树脂的FPC的可能应用目标。
By taking full advantage of these characteristics, the fluororesin-based FPCs are expected to find widespread applications. While used as writing materials in data centers, 5G base stations and terminal devices, they can also be employed as antennas for these stations and devices. Radar devices and sensors are also expected to be possible application targets of the fluororesin-based FPCs.
