# 3D Rapid-Prototyped 21-31-GHz Hollow SIWs for Low-Cost 5G IoT and Robotic Applications

> Research article (IEEE Access, 2021) · cited 20× · AI/ML

**Wikidata**: [openalex:W3119085259](https://www.wikidata.org/wiki/openalex:W3119085259)  
**Source**: https://4ort.xyz/entity/3d-rapid-prototyped-21-31-ghz-hollow-siws-for-low-cost-5g-iot-and-robotic-applications