What can you do with a nitinol tube od 0.7mm

Do you know a nitinol tube od 0.7mm can be used as Flexible antenna for smartwatch/wristband ?

Why choose 0.7mm nickel titanium tube?

• Excellent diameter: ensuring sufficient rigidity to support signal transmission while maintaining excellent flexibility, perfectly adapting to the curvature of watch straps

• Hollow structure: can accommodate wires/sensors for multifunctional integration

• Ultra thin wall thickness (0.05-0.15mm): further reduces weight and improves wearing comfort

Advantage

1. Ultimate flexibility+super strong rebound: 8-10% fully recovered after super large deformation, solving the pain point of traditional antenna bending failure.
2. Signal stability: Even if the strap is extremely bent (125 °), the signal attenuation is only 3dB, maintaining smooth communication.
3. Durability Revolution: Anti daily wear fatigue, increased service life by 5 times, reduced after-sales maintenance costs.
4. Lightweight design: The overall thickness is less than 0.8mm, perfectly integrating the slim aesthetic of modern smartwatches.
5. Multi scenario adaptation: from daily office to extreme sports, from land to underwater (with waterproof design), the signal remains consistent

Working principle:

The unique superelasticity and shape memory effect of nickel titanium alloy enable it to quickly recover its original shape after bending, ensuring stable antenna structure and unaffected signal transmission. When the ambient temperature changes, the operating frequency can also be adjusted through shape changes to achieve multi band adaptation.

Making smart wearables smarter: where can nickel titanium tubes be used?

1. Embedded antenna on watch strap: Bend a 0.7mm nickel titanium tube into a specific shape, embed it inside the watch strap, connect one end to the motherboard, and hide the other end in the watch buckle.

Advantage:

a. Flexing freely with wrist movements, the signal is stable and continuously connected,

b. Ultra thin design (strap thickness<0.5mm), does not affect wearing comfort.

c. Anti daily stretching/twisting often increases the service life of the watch strap by three times

2. Case integrated antenna: Wrap nickel titanium tubes around the inside of the case, or design them in a specific pattern, and integrate them with the case through laser welding.

Advantage:

a. Solving the signal shielding problem of metal watch cases

b. Integrated design, combining aesthetics and functionality

c. IP68 waterproof (with special packaging), worry free underwater communication

3. Multi functional composite antenna: The nitinol tube od 0.7mm serves as the supporting skeleton, covered with a flexible circuit board (FPC) to form a composite structure, and contains multiple antenna units.

Advantage:

a. Single antenna achieves multi band coverage of Bluetooth+WiFi+GPS+cellular network.

b. Adaptive adjustment of radiation mode, signal enhancement in weak network environment.

c. Seismic and impact resistance, excellent performance in outdoor sports scenes.