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Flexible Waveguide (Yonezawa Bussan)

The world’s first flexible waveguide, delivering highly reliable high‑speed wired communication for 5G and beyond. Developed using advanced fiber‑braiding techniques, it complements coaxial cables, optical fibers, and metal waveguides across a wide range of applications.

Note: This graph shows an example of the characteristics of an equivalent product and represents loss per meter.
Actual product characteristics may vary slightly.

[Indoor Network]

Flexible waveguides compensate for the weaknesses of millimeter‑wave signals and deliver them exactly where needed.

Flexible and lightweight structure utilizing Yonezawa Bussan’s traditional “Kumihimo” braiding technique.

Requirement (example level)	Coaxial cable	Glass Optical fiber	Plastic Optical fiber	Flexible wave guide
High-speed communication （＞ 10Gbps）	×	◎	〇	〇	Depends on circuit
Communication distance （＞ 10m）	△	◎	〇	△	～20 m
Connectivity	〇	×	×	◎	Contactless connection possible
（＞ 50,000times） Bending resistance	〇	△	〇	〇
（＞ 140℃） Heat resistance	〇	〇	×	〇	～200℃
Thickness / lightness	〇	◎	〇	（〇）	Frequency‑dependent, <10 g/m
Cost	〇	×	（△）	（〇）	Simple structure; becomes low‑cost with mass production

Compatible with Yonezawa Bussan’s E‑band (60 GHz) flexible waveguide

Recommended operating band
: E‑band: 62–87 GHz

Suitable for a wide range of applications including medical, mobile infrastructure, aerospace, defense, and industrial equipment.

Stable low loss performance over the supported frequency band

Advantages

Use Cases

[In‑vehicle Wiring]

Lightweighting through replacement of wire harnesses

Comprehensive superiority with no major drawbacks

If you have any questions or would like more information about our Flexible Waveguide Connectors, please contact us using the form below.

Coupling via a nut located on the plug side.

MIL‑standard waveguide flange (UG‑387/U type receptacle)

Flexible Waveguide Connector

Yokowo has developed connectors compatible with Yonezawa Bussan’s flexible waveguides. Smaller and easier to attach/remove compared to traditional MIL‑standard waveguide flanges.

Founded in Japan in 1922, Yokowo is a manufacturer with nearly 100 years of experience. We deliver reliable connector solutions that support electronic devices used around the world.
Our spring connectors (Pogo Pins) allow easy and simple method of attaching/detaching, that are used in a variety of electronics devices including cellphones, wearable devices, commercial/industrial/medical devices, automotive equipment, and more.

▶　Yonezawa Bussan