| 3-D Micro-Electromagnetic Radio Frequency System (3D-MERFS) is a copper with air-core, rectangular coax interconnection system. A rectangular coax to microstrip transition of 3D-MERFS is examined in this study. Ansoft's High Frequency Structure Simulator (HFSS) was used to model the performance of the transition. After validating the accuracy of HFSS with measured data from known structures, the equivalent circuit is derived, and tuning methods identified to achieve optimum design for specified requirements. The goal is match of 25 dB or better at 37 GHz. Two different lumped element matching networks were designed to meet the requirement: one design realized within the microstrip, and an optional design realized within the rectangular coax. |
