Heat-Resistant 3D Printed Microwave Devices

Polyphenylene Sulfide polymers were used to fabricate microwave devices. This printable material was compared to a standard Acrilonytrile Butadiene Styrene. Heat treatments were used to evaluate their maximum operating temperatures. K-band rectangular waveguides were fabricated and characterized in order to evaluate a plating process compatible with this polymer. Thermal stability was investigated by measurement of a resonator. The measured variation of resonance frequency versus temperature is less than 1% between room temperature and 160°C. This thermal stable, chemical resistant printable material appears to be suitable for the realization of heat-resistant 3D printed devices.