Simulation and microwave characterization of CPW back-to-back transmission line in Möbius Strip configuration: Analysis by real Time Domain Reflectometry

This work presents a Möbius Strip device composed by two CPW-Coplanar Waveguides placed back-to-back that were constructed, simulated, and measured. The main characterization is by real Time Domain Reflectometry-TDR. The device, also named B2B-CPWMÖS, exhibits a behavior like an infinite transmission line with characteristics capable of retaining large bandwidth frequencies. Some insight into the electromagnetic, EM, behavior is analyzed by means of simulations using simulators with FIT-Finite Integration Technique. The measurements are in microwaves range from hundreds of KHz to tens of GHz. The construction details of the device are also presented here. The EM behavior of the device, such as an infinite transmission line and retention of a large bandwidth of signal frequencies is also discussed in this paper. This last capability gives rise to real-time retention, RTR behavior, and originates the RTR devices. The Möbius B2B-CPW device shows a continuous phase change as compared to a short-circuited classical transmission line. A qualitative analysis and discussion about the device is also presented in this paper.