Dual Source Excitation Rectangular Waveguide Design And Evaluation For The Measurement Of Electromagnetic Material Properties
Abstract
Broadband material parameter measurements are essential in understanding how materials interact with electromagnetic waves. Traditional rectangular waveguide material measurement systems are bandwidth limited. Efforts to produce a broadband rectangular waveguide have focused on the inclusion of different guiding structures in the waveguide body. These designs require precise machining and time-consuming sample preparation. This research proposes a broadband rectangular waveguide design which uses a dual source excitation design. The fields excited by each source superimpose in a linear fashion resulting in the suppression of unwanted higher order electromagnetic modes. A dual source excitation waveguide is proposed in this research. Results from CST Microwave Studio simulations are compared with those from a physical design measured with a 2-port network analyzer. These results are used to determine if this proposed rectangular waveguide design is suitable for broadband material measurements.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 23, 2018
- Accession Number
- AD1056158
Entities
People
- Daniel K Koch
Organizations
- Air Force Institute of Technology