Inkjet printed transmission line elements for RF applications and measurement challenges

In the future Internet of things (IoT) era, printed electronics is believed to be a key development technology for sensor tag development. Radio Frequency (RF) circuits such as RF energy harvesters and wireless power transfer will play a major role in future “smart” product. The fundamental element in RF hardware is transmission line. Ink and substrate properties, printing and curing process are vital in desirable quality output. Here, we report inkjet printed transmission line element design and implementation for beyond 1GHz operation. Further, measuring the characteristics of implemented transmission lines with correction is presented.