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Recent content by wforest6810

  1. W

    900MHz RFID antenna using ADS

    Do i consider the interface between antenna to the circuit? Why???
  2. W

    Momentum complex port simulation

    this Photo is error， smith plot is error,return loss is error and phase plot is error,because i measured the antenna.
  3. W

    Momentum complex port simulation

    Hi my friends. I use ads to simulate a antenna,I set two ports,One port is Internal port,other is ground.The internal port real part is 14 Ohm and Imaginary part is 144 Ohm,Howerever smith plot show the normalization Z0 is 50Ohm,How am i debugged the antenna?How am i lookking S11 plot?
  4. W

    Metal UHF RFID tag simulation

    Hi to my friends I am simulating a UHF RFID tag,layout is like: ///pet(0.5mm) ///metal(0.018mm) ///pet(4mm) ///metal(0.018)reflect layout ///pet(0.05) Port setting: P1:Internal port(14+j144) P2:Ground ref(associate with p1) S(1,1): Fre:914Mhz Imp:Z0*(1.013+j0.065) Mag.(db):35.45 My question...
  5. W

    port definition for microtrip dipole antenna, EMDS/Momentum

    Re: port definition for microtrip dipole antenna, EMDS/Momen 2 Ports Port 1:internal port Port2:Ground ref
  6. W

    900MHz RFID antenna using ADS

    To Buenrostro: I have tested your suggestion,but the result is error your port`s define is right,but two port cannot define as photo,i do not know how to define the ports,can you tell me?
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