摘要 |
The circuit (30) has a filter (FP) with series inductance and two parallel capacitors (CF1, CF2). The filter has a point (P1, P2) for detecting an electrical voltage (V1, V2), whose amplitude forms relevant information to tune the circuit to a determined resonance frequency. The capacitances are adjusted such that the electrical voltage has determined amplitude. Independent claims are also included for the following: (a) a non-contact integrated circuit drive (b) a method for tuning the antenna circuit to a determined resonance frequency
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