<Qucs Schematic 0.0.19>
<Properties>
  <View=0,-80,965,800,1,0,0>
  <Grid=10,10,1>
  <DataSet=lc-ladder-pi-butterworth-6.9M-7.4M-bandpass-expe-adjust-v6-schottky.dat>
  <DataDisplay=lc-ladder-pi-butterworth-6.9M-7.4M-bandpass-expe-adjust-v6-schottky.dpl>
  <OpenDisplay=1>
  <Script=lc-ladder-pi-butterworth-6.9M-7.4M-bandpass-expe-adjust-v6-schottky.m>
  <RunScript=0>
  <showFrame=0>
  <FrameText0=Title>
  <FrameText1=Drawn By:>
  <FrameText2=Date:>
  <FrameText3=Revision:>
</Properties>
<Symbol>
</Symbol>
<Components>
  <Pac P1 1 240 280 18 -26 0 1 "1" 1 "50 Ohm" 1 "0 dBm" 0 "1 GHz" 0 "26.85" 0>
  <GND * 1 240 310 0 0 0 0>
  <L L1 1 390 280 8 -26 0 1 "56nH" 1 "" 0>
  <GND * 1 390 310 0 0 0 0>
  <Pac P2 1 530 280 18 -26 0 1 "2" 1 "50 Ohm" 1 "0 dBm" 0 "1 GHz" 0 "26.85" 0>
  <GND * 1 530 310 0 0 0 0>
  <.SP SP1 1 290 380 0 67 0 0 "log" 1 "690kHz" 1 "74MHz" 1 "201" 1 "no" 0 "1" 0 "2" 0 "no" 0 "no" 0>
  <Eqn Eqn1 1 510 390 -28 15 0 0 "dBS21=dB(S[2,1])" 1 "dBS11=dB(S[1,1])" 1 "yes" 0>
  <C C1 1 360 280 -8 46 0 1 "9nF" 1 "" 0 "neutral" 0>
  <L L2 1 500 100 -26 -44 0 0 "22uH" 1 "" 0>
  <C C2 1 440 100 -26 10 0 0 "22pF" 1 "" 0 "neutral" 0>
  <Diode D_1N4148_1 1 530 130 13 -26 0 1 "222p" 1 "1.65" 1 "4p" 0 "0.333" 0 "0.7" 0 "0.5" 0 "0" 0 "0" 0 "2" 0 "68.6m" 0 "5.76n" 0 "0" 0 "0" 0 "1" 0 "1" 0 "75" 0 "1u" 0 "26.85" 0 "3.0" 0 "1.11" 0 "0.0" 0 "0.0" 0 "0.0" 0 "0.0" 0 "0.0" 0 "0.0" 0 "26.85" 0 "1.0" 0 "normal" 0>
</Components>
<Wires>
  <360 250 390 250 "" 0 0 0 "">
  <360 310 390 310 "" 0 0 0 "">
  <390 100 390 250 "" 0 0 0 "">
  <240 100 240 250 "" 0 0 0 "">
  <240 100 390 100 "" 0 0 0 "">
  <390 100 410 100 "" 0 0 0 "">
  <530 250 530 280 "" 0 0 0 "">
  <530 160 530 250 "" 0 0 0 "">
</Wires>
<Diagrams>
</Diagrams>
<Paintings>
  <Text 620 380 12 #000000 0 "v6\n\nButterworth band-pass filter \n 6.9MHz...7.4MHz, pi-type, \n impedance matching 50 Ohm\n\nExperiments for adjusting component values\n\nL2=22uH (Axial Fixed Inductor, 0.25W or 0.50W or 1W)\nL1= 56nH = 0.056uH (I don't know where to procure this!)\nC1= 6.8nF + 2.2nF ceramic capacitor in parallel = 9nF\nC2=22pF ceramic capacitor\n">
</Paintings>