Abstract
Statement of Problem
A Split-Ring Resonator (SRR) is a filtering and coupling device used in communications. In this project, a SSR developed in a planar technology will be converted to quasi-optical circuit. Using the most fundamental of Microwave Engineering properties, the SRR in Free-space will be analyzed in a multi-step process. Firstly, analysis of SRR will include elementary electromagnetic properties by developing wave-equations to describe fields and currents on the structure. Subsequently the structure will be simulated using Ansoft HFSS or Agilent Momentum. Secondly, analytical expressions will be compared to the simulated values. This project will analyze the structure and the effects of the Split Ring Resonator circuit in a Free-Space environment. In addition, these SRR principles will used to configure a band-pass filter for the frequencies of about 10 GHz.
Sources of Data
Resources used for this project will included, but not limited to, extensive and detailed research articles, published books by authors well versed in the field of microwave technology and computer aided simulation tools, such as HFSS and ADS. Other resources included previous microwaves material covered in microwaves courses.
Conclusions Reached
At the end of the project, a Split-Ring Resonator was successfully designed to filter out signals in the 10 GHz range, resulting in a passive band-pass filter. Multiple simulations were design in Matlab, successful models of gap capacitances were achieved, as well as accurate models for a ring resonator and a Split-Ring Resonator. Furthermore, models designed using ADS were accurately simulated; in addition, data accumulated was used in comparison with the Matlab models. Finally, using HFSS, a Split-Ring Resonator was designed, modeled and accurately simulated for an S-parameter comparison with Matlab and ADS, developing figures for modeling the magnetic and electric fields of a SRR.