The authors report a power-dividing-based microwave power thin film resistor (MPTFR) that exhibits high operating frequency and high power load. The MPTFR is comprised of substrate, ground electrodes, two TaN resistive films, power dividing circuit and signal input port. The experimental results show that the voltage standing wave ratio of the MPTFR is lower than 1.6 in the band of 3.4–7.4 GHz and 8.2–9.8 GHz. The power load of the MPTFR is 200 W. The experimental data are in good agreement with the electromagnetic simulations.

In this paper, it is focused on test and assessment of low voltage ride through characteristics of electrochemical energy storage system. Based on the national standard GB/T 36547-2018: technical rule for electrochemical energy storage system connected to power grid, this paper proposes a test and evaluation method for the low voltage ride through characteristics of EESS, and carries out a case analysis based on test data of experimental system to verify the feasibility and effectiveness of the method.

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