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LPF_Balun_Transient

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Mar 22nd, 2017
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  1. <Qucs Schematic 0.0.19>
  2. <Components>
  3. <GND * 1 1020 260 0 0 0 0>
  4. <GND * 1 200 420 0 0 0 0>
  5. <GND * 1 910 400 0 0 0 0>
  6. <sTr Tr1 1 820 350 -29 78 1 2 "0.5" 1 "0.5" 1>
  7. <GND * 1 950 340 0 0 0 0>
  8. <GND * 1 290 260 0 0 0 0>
  9. <Pac P1 1 200 390 18 -26 0 1 "1" 1 "50 Ohm" 1 "0 dBm" 0 "0.5 GHz" 0 "26.85" 0>
  10. <C C1 1 390 400 17 -26 0 1 "7.025pF" 1 "" 0 "neutral" 0>
  11. <GND * 1 390 430 0 0 0 0>
  12. <L L1 1 460 320 -26 10 0 0 "8.976nH" 1 "" 0>
  13. <C C2 1 530 400 17 -26 0 1 "9.875pF" 1 "" 0 "neutral" 0>
  14. <GND * 1 530 430 0 0 0 0>
  15. <L L2 1 600 320 -26 10 0 0 "8.976nH" 1 "" 0>
  16. <C C3 1 670 400 17 -26 0 1 "7.025pF" 1 "" 0 "neutral" 0>
  17. <GND * 1 670 430 0 0 0 0>
  18. <R R2 1 950 310 15 -26 0 1 "25 Ohm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "US" 0>
  19. <VProbe Vp 1 1010 230 28 -31 0 0>
  20. <VProbe Vunbalanced 1 280 240 28 -31 0 0>
  21. <.TR TR1 1 350 630 0 77 0 0 "lin" 1 "50 ns" 1 "60 ns" 1 "1000" 0 "Trapezoidal" 0 "2" 0 "1 ns" 0 "1e-16" 0 "150" 0 "0.001" 0 "1 pA" 0 "1 uV" 0 "26.85" 0 "1e-3" 0 "1e-6" 0 "1" 0 "CroutLU" 0 "no" 0 "yes" 0 "0" 0>
  22. <GND * 1 1110 490 0 0 0 0>
  23. <GND * 1 1060 590 0 0 0 0>
  24. <R R1 1 1060 560 15 -26 0 1 "25 Ohm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "US" 0>
  25. <VProbe Vn 1 1100 460 28 -31 0 0>
  26. <Vfile V1 0 100 300 18 -26 0 1 "vfile.dat" 1 "linear" 0 "no" 0 "1" 0 "0" 0>
  27. </Components>
  28. <Wires>
  29. <1020 250 1020 260 "" 0 0 0 "">
  30. <200 320 200 360 "" 0 0 0 "">
  31. <850 250 850 280 "" 0 0 0 "">
  32. <790 380 790 400 "" 0 0 0 "">
  33. <850 250 950 250 "" 0 0 0 "">
  34. <950 250 1000 250 "" 0 0 0 "">
  35. <950 250 950 280 "" 0 0 0 "">
  36. <670 320 790 320 "" 0 0 0 "">
  37. <200 320 270 320 "" 0 0 0 "">
  38. <390 320 390 370 "" 0 0 0 "">
  39. <530 320 530 370 "" 0 0 0 "">
  40. <670 320 670 370 "" 0 0 0 "">
  41. <390 320 430 320 "" 0 0 0 "">
  42. <490 320 530 320 "" 0 0 0 "">
  43. <530 320 570 320 "" 0 0 0 "">
  44. <630 320 670 320 "" 0 0 0 "">
  45. <270 320 390 320 "" 0 0 0 "">
  46. <270 260 270 320 "" 0 0 0 "">
  47. <790 400 890 400 "" 0 0 0 "">
  48. <890 400 910 400 "" 0 0 0 "">
  49. <890 350 890 400 "" 0 0 0 "">
  50. <850 340 850 350 "" 0 0 0 "">
  51. <850 350 850 360 "" 0 0 0 "">
  52. <850 350 890 350 "" 0 0 0 "">
  53. <850 420 850 480 "" 0 0 0 "">
  54. <1110 480 1110 490 "" 0 0 0 "">
  55. <850 480 1060 480 "" 0 0 0 "">
  56. <1060 480 1090 480 "" 0 0 0 "">
  57. <1060 480 1060 530 "" 0 0 0 "">
  58. </Wires>
  59. <Diagrams>
  60. <Rect 1276 556 520 365 3 #a0a0a4 1 00 1 5e-08 1e-09 6e-08 1 -0.8 0.2 0.8 1 -1 0.2 1 315 0 225 "" "" "">
  61. <"Vn.Vt" #0000ff 0 3 0 0 0>
  62. <"Vp.Vt" #ff0000 0 3 0 0 0>
  63. <"Vunbalanced.Vt" #ff00ff 0 3 0 0 0>
  64. </Rect>
  65. </Diagrams>
  66. <Paintings>
  67. <Rectangle 140 340 170 120 #000000 0 1 #c0c0c0 1 0>
  68. <Text 180 480 12 #000000 0 "ANTENNA">
  69. <Rectangle 350 280 410 240 #000000 0 1 #c0c0c0 1 0>
  70. <Text 450 530 12 #000000 0 "LPF (Chebyshev 5, fc = 1GHz)">
  71. <Rectangle 770 220 150 310 #000000 0 1 #c0c0c0 1 0>
  72. <Text 670 570 12 #000000 0 "BALUN\nThe impedace of the unbalanced port is 50 Ohm, \nso the impedance of balanced ports is 25 Ohm.">
  73. <Text 930 210 12 #000000 0 "RF_P">
  74. <Text 990 440 12 #000000 0 "RF_N">
  75. </Paintings>
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