IPAC2013 - List of Authors (Zhao, F.)

Paper	Title	Page
THPFI023	A Newly Developed High Directivity X-band Waveguide Directional Coupler	3345
	X. He, X. Wang, F. Zhao IHEP, Beijing, People's Republic of China
	A new X-band waveguide directional coupler working at 11.9924 GHZ is designed. Four holes symmetrical to the structure is drilled along the central line of the narrow-wall, which is used to couple the electromagnetic power from the main-waveguide to the sub-waveguide. The final prototype has got a measurement result of 32.2 dB Directivity (-47.0 dB Coupling Degree) together with a very low VSWR (1.067) and Insertion Loss (-0.11 dB) at 11.9924 GHz. The vacuum performance is also qualified.

Paper

Title

Page

A Newly Developed High Directivity X-band Waveguide Directional Coupler

3345

X. He, X. Wang, F. Zhao
IHEP, Beijing, People's Republic of China

A new X-band waveguide directional coupler working at 11.9924 GHZ is designed. Four holes symmetrical to the structure is drilled along the central line of the narrow-wall, which is used to couple the electromagnetic power from the main-waveguide to the sub-waveguide. The final prototype has got a measurement result of 32.2 dB Directivity (-47.0 dB Coupling Degree) together with a very low VSWR (1.067) and Insertion Loss (-0.11 dB) at 11.9924 GHz. The vacuum performance is also qualified.