NFC Antenna Design, Adjustment of Resonant Frequency, Sensor Network Module
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Phone : +81-75-874-5597
Reference document:"AN11740 PN5180 Antenna design guide" Rev. 1.0 p.30 4.2.1.4
"Measured" value
La=1533nH
Cpa=0.1pF
Rcoil=3Ω ⇒ 2.5Ω
Preset value
Q=25
Rmatch=20Ω
L0=470nH
Co=124pF=56pF+68pF
◇◇◇ Calculation result ◇◇◇
NFC Reader/Writer antenna size : 8mm×6mm
Tag antenna size : 8mm×6mm
「NFC Small antenna experiment(2)」
Feb. 07, 2016 Technical Discussion : Measurement of coupling coefficient
Feb. 05, 2016 News : AutoID & Communication EXPO.Osaka - Catalogue exhibition -
Dec. 20, 2015 Products News : NFC Antenna Designer Demo Ver. 0.1
Nov. 21, 2015 Technical Discussion : Verified the circuit equations by Spice simulation.
Nov. 08, 2015 Technical Discussion : Antenna size of Reader/Writer
Oct. 22, 2015 Technical Discussion : Electromagnetic induction, Induced electromotive force
Oct. 08, 2015 Technical Discussion : Resonant frequency of the NFC tag
Oct. 02, 2015 Technical Discussion : Circuit equations of the equivalent circuits
Oct. 01, 2015 Technical Discussion : Equivalent circuits of the NFC system
Oct. 01, 2015 Released the homepage.
Aug. 26, 2015 Moved the office to Kyoto Research Park.