Coaxial Cable Bragg Grating Assisted Microwave Coupler
This paper reports a microwave coupler based on two parallel coaxial cable Bragg gratings fabricated by drilling U-grooves across the cables at periodic distance along the cable direction. Electromagnetic field couplings between two cables were observed at discrete frequencies through both near and far ends detections. The coupling frequency and strength can be precisely controlled by varying the grating period and length. The coupling bandwidth may also be controlled through specific grating design. The device physics was also described through transfer matrix which matched well with the experimental results.
J. Huang et al., "Coaxial Cable Bragg Grating Assisted Microwave Coupler," Review of Scientific Instruments, vol. 85, no. 1, American Institute of Physics (AIP), Jan 2014.
The definitive version is available at https://doi.org/10.1063/1.4856695
Electrical and Computer Engineering
Center for High Performance Computing Research
Second Research Center/Lab
Electromagnetic Compatibility (EMC) Laboratory
National Science Foundation (U.S.)
Keywords and Phrases
Coupling bandwidths; Coupling frequencies; Device physics; Discrete frequencies; Electromagnetic field coupling; Grating design; Grating periods; Microwave couplers; Bragg gratings; Coaxial cables; Electromagnetic fields; Transfer matrix method; Cables
International Standard Serial Number (ISSN)
Article - Journal
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