Proximity Reader Antenna:

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Presentation transcript:

Proximity Reader Antenna: Proximity Antenna Training for 13.56 MHz Proximity Reader Antenna: Design Example

EMC-Filter + Impedance Matching to 700 (given parameters) RX AVSS TX1 TX2 TVSS VMID RC 500 RC 400 Rx-Circuit: R1 = 2,2 k R2 = 820  C3 = 15 pF C4 = 100 nF R 1 2 C 4 3 Rx-Circuit Z  700 Ohm Tx-Circuit: L0 = 1 H C0 = 136 pF C L GND Tx-Circuit

Antenna Coil = open = short

Antenna Coil La Lb RCoil Results of the measurement @13.56 MHz! Results of the measurement (impedance analyser or L-C-R Meter):

Calculation

Calculation

Calculation

Calculation Due to the measurement uncertainty this value maybe not accurate. (Probably the exact value is lower!) Check the Q-factor!!!

Tuning C2a C1a C1b C2b

Result See the Training!!!