Further Improvements in Real-Time Load-Pull Measurement Accuracy

Bonino, S.; Teppati, Valeria; Ferrero, A.

doi:10.1109/lmwc.2009.2038619

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…Singlestub tuner consists of short or open circuit terminal line (length of m) in parallel or series, n from the load, as shown in Figure 2. In a single-stub tuner, its susceptance can be adjusted by two adjustable parameters, which are m and n. Appropriate distance (n) is selected so that admittance, from the stub to the load, is Y in = Y 0 + jB, then appropriate length (m) of stub is selected so that susceptance is Y 0 = −jB, so as to achieve matching [11][12][13][14].…”

Section: Principlementioning

confidence: 99%

A New Type of High-Power Microwave Impedance Tuner Based on Load-Pull With a Rapid Calibration Method

Cheng¹,

Sun²,

Wang³

et al. 2014

PIER C

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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.

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Section: Principlementioning

confidence: 99%