Switchable Distance-Based Impedance Matching Networks for a Tunable HF System

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Provided by: EMW Publishing
Topic: Networking
Format: PDF
Distance-based impedance matching networks for a tunable High Frequency (HF) system are presented in this paper for the improved performance. The transmitting antenna for a HF system with an operating frequency of 13.56MHz consists of a two-turn loop and three channel impedance matching networks corresponding to the distance of the receiving antenna. Each impedance matching network maximizes the system performance such as uniform power efficiency and reading range at specific distance between a transmitting and a receiving antenna.
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