住友電氣工業(yè)株式會社已成功批量生產(chǎn)基于氟樹脂的柔性印刷電路板（FPC）FLUOROCUIT?，該柔性印刷電路板在毫米波波段表現(xiàn)出高靈活性和低傳輸損耗，旨在實現(xiàn)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.

在無線通信中，5G移動通信已開始在商業(yè)基礎(chǔ)上使用。當前，sub-6頻段（例如3.5和4.7GHz）正在世界各地用于5G通信。為了提高傳輸速度，期望將使用的頻率增加到毫米波段（例如26GHz和28GHz）。此外，考慮到6G移動通信的推出以及考慮到雷達和傳感器的實際使用，甚至將在毫米波頻段內(nèi)甚至更高的頻率被完全使用。

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，住友電工已實現(xiàn)了基于氟樹脂的柔性FPC的批量生產(chǎn)，其特征在于毫米波段的傳輸損耗低。

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.

與已經(jīng)開始用于高頻電路的液晶聚合物（LCP）相比，氟樹脂的特征在于介電常數(shù)和介電損耗因子低，從而有可能進一步降低傳輸損耗（在40 GHz頻帶中的傳輸損耗約為40％）。頻率越高，與LCP材料對比越明顯。由于這些特性，氟樹脂作為高頻波段優(yōu)異的電路材料受到了廣泛的關(guān)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.

與液晶聚合物（住友電工制造的FPC）

的傳輸損耗的比較

住友電工集團長期從事氟樹脂加工，并開發(fā)了各種產(chǎn)品。住友電工憑借其積累的專業(yè)知識和技術(shù)，實現(xiàn)了氟樹脂基FPC的批量生產(chǎn)，而這種氟樹脂F(xiàn)PC加工難度很大。氟樹脂基FPC與常規(guī)FPC一樣柔韌性，因此適合在需要柔韌性的區(qū)域（例如曲面）中進行布線。

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.

通過充分利用這些特性，預(yù)計基于氟樹脂的FPC將獲得廣泛的應(yīng)用。雖然在數(shù)據(jù)中心，5G基站和終端設(shè)備中用作書寫材料，但它們也可用作這些5G基站和設(shè)備的天線。雷達設(shè)備和傳感器也有望成為基于氟樹脂的FPC的可能應(yīng)用目標。

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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.