TY - JOUR
T1 - Numerical and experimental investigation of a 5-port mitre-bend directional coupler for mode analysis in corrugated waveguides
AU - Ruiz, Juan
AU - Kasparek, Walter
AU - Lechte, Carsten
AU - Plaum, Burkhard
AU - Idei, Hiroshi
N1 - Funding Information:
Acknowledgement This work was supported in part by the Collaborative Research Program of the Research Institute for Applied Mechanics, Kyushu University.
Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012/5
Y1 - 2012/5
N2 - A directional coupler array with 5 ports integrated into a mitre bend for corrugated waveguide transmission lines at 140 GHz has been manufactured. The design is reviewed, and calculations on the performance for in-situ power measurement and mode discrimination are shown. Emphasis is given on detection of errors in alignment of the transmission system. Experimental tests are performed to benchmark the calculations. The results confirm the predictions and show that such a coupler is a viable tool for power measurement and basic mode analysis in high-power transmission systems.
AB - A directional coupler array with 5 ports integrated into a mitre bend for corrugated waveguide transmission lines at 140 GHz has been manufactured. The design is reviewed, and calculations on the performance for in-situ power measurement and mode discrimination are shown. Emphasis is given on detection of errors in alignment of the transmission system. Experimental tests are performed to benchmark the calculations. The results confirm the predictions and show that such a coupler is a viable tool for power measurement and basic mode analysis in high-power transmission systems.
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U2 - 10.1007/s10762-012-9883-0
DO - 10.1007/s10762-012-9883-0
M3 - Article
AN - SCOPUS:84863725190
SN - 1866-6892
VL - 33
SP - 491
EP - 504
JO - Journal of Infrared, Millimeter, and Terahertz Waves
JF - Journal of Infrared, Millimeter, and Terahertz Waves
IS - 5
ER -