title: Coaxial cable Bragg grating assisted microwave coupler.
abstract: 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.
authors: Department of Electrical and Computer Engineering, Clemson University, Clemson, South Carolina 29634, USA.
authors: Jie
authors: J
authors: Huang
authors: Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, Missouri 65401, USA.
authors: Tao
authors: T
authors: Wei
authors: Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, Missouri 65401, USA.
authors: Jun
authors: J
authors: Fan
authors: Department of Electrical and Computer Engineering, Clemson University, Clemson, South Carolina 29634, USA.
authors: Hai
authors: H
authors: Xiao