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1 results about "Antenna input impedance" patented technology

The input impedance of a Car Satellite TV Antenna. Definition: the ratio of the input signal voltage to the signal current in the car satellite TV antenna, which is called the input impedance of the satellite TV antenna. The input impedance has the resistance component Rin and the reactance component Xin, namely Zin = Rin + j Xin.

A ring-distributed hybrid energy storage and in-flight wireless energy replenishment system

This application relates to the field of wireless power transfer technology and discloses a ring-shaped distributed hybrid energy storage and in-flight wireless power replenishment system, including a ground-based transmitting base station and an airborne receiving terminal. The airborne receiving terminal includes multiple circumferentially distributed fan-shaped battery compartments, each integrating an antenna array, hybrid energy storage, and a control routing module. The control routing module adjusts the antenna input impedance according to the battery status: switching to a matched state to absorb microwave energy when charging is needed; and switching to a total reflection mismatch state when fully charged or in a faulty state, using the increased radar cross-section to reflect pilot signals for identification by the ground base station and to form an energy null trap. The hybrid energy storage module uses supercapacitors to smooth power pulsations in time-division duplex mode. The system employs a microcapsule phase change fluid loop for thermal management. This invention achieves on-demand energy distribution without the need for an independent communication link, improving the stability of energy transfer and the system's thermal safety.
Owner:WUHAN YUNYI INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD