Utilization of Direct-Write for the Realization of a Microstrip Resonator on a Flexible Substrate

In this paper, a new method with possible challenges for the development of microstrip resonators using Printed Electronics (PE) methods as an alternative technology to fabricate Radio Frequency (RF) circuits is presented. To validate the utilization of PE technology, two microstrip resonators were designed and simulated. Designed resonators are then realized with a dispensing (or so-called direct-write) printing system on a DuPont Teijin flexible polyethylene terephthalate (PET) foil with a thickness of 175 $\mu$m and a dielectric constatnt of 3. Simulated and measured frequency responses are compared, the process of printing microstrip structures is examined and results are discussed.