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2014-09-12
A New Type of High-Power Microwave Impedance Tuner Based on Load-Pull with a Rapid Calibration Method
By
Progress In Electromagnetics Research C, Vol. 53, 135-144, 2014
Abstract
For the measurement of microwave device in high-power, traditional methods are inefficient, inaccurate and not on-line real-time measurement. A new type of high-power microwave impedance tuner (26.5 GHz~40 GHz) based on load-pull technique and a corresponding rapid calibration method based on curve fitting are proposed. A new structure using increased width rectangular waveguide slotted in the center is adopted as the main transmission line. In order to prevent the leak of electromagnetic waves transferring in rectangular waveguide, two choke grooves are added in upper cover plate of the waveguide cavity. The results (standing wave ratio range of 1.02~10.98, insertion loss of 0.063 dB at minimum standing wave ratio) show by practical measurement that this structure and method are feasible. The device can meet the requirement of design, and the new method has less time for calibration.
Citation
Peng Cheng, Lu Sun, Jia-Li Wang, Long-Long Xue, Chun-Yang Zhou, and Xiao-Long Wang, "A New Type of High-Power Microwave Impedance Tuner Based on Load-Pull with a Rapid Calibration Method," Progress In Electromagnetics Research C, Vol. 53, 135-144, 2014.
doi:10.2528/PIERC14033103
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