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Differential Impedance Matching

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Mar 25th, 2017
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  1. <Qucs Schematic 0.0.19>
  2. <Components>
  3. <L L4 1 940 440 -26 10 0 0 "6.8nH" 1 "" 0>
  4. <L L5 0 1020 360 -71 -26 0 3 "6.8nH" 1 "" 0>
  5. <Tr Tr1 1 1180 350 -29 38 0 0 "1" 1>
  6. <Pac P1 1 1320 400 18 -26 0 1 "1" 1 "50 Ohm" 1 "0 dBm" 0 "0.5 GHz" 0 "26.85" 0>
  7. <GND * 1 1320 430 0 0 0 0>
  8. <GND * 1 1210 380 0 0 0 0>
  9. <SUBST Subst1 1 620 40 -30 24 0 0 "4.7" 1 "1 mm" 1 "35 um" 1 "2e-4" 1 "0.022e-6" 1 "0.15e-6" 1>
  10. <GND * 1 140 460 0 0 0 0>
  11. <Pac P4 1 140 430 18 -26 0 1 "2" 1 "50 Ohm" 1 "0 dBm" 0 "0.5 GHz" 0 "26.85" 0>
  12. <GND * 1 610 520 0 0 0 0>
  13. <C C3 1 610 490 17 -26 0 1 "2.2pF" 1 "" 0 "neutral" 0>
  14. <GND * 1 470 520 0 0 0 0>
  15. <C C2 1 470 490 17 -26 0 1 "4.7pF" 1 "" 0 "neutral" 0>
  16. <GND * 1 330 520 0 0 0 0>
  17. <C C1 1 330 490 17 -26 0 1 "2.2pF" 1 "" 0 "neutral" 0>
  18. <.SP SP1 1 230 0 0 74 0 0 "lin" 1 "0.1 GHz" 1 "1.5 GHz" 1 "200" 1 "no" 0 "1" 0 "2" 0 "no" 0 "no" 0>
  19. <L L3 1 550 240 -26 10 0 0 "6.8nH" 1 "" 0>
  20. <L L1 1 400 240 -26 10 0 0 "6.8nH" 1 "" 0>
  21. <MLIN MS1 5 740 360 -26 15 0 0 "Subst1" 0 "1.3 mm" 1 "5 mm" 1 "Hammerstad" 0 "Kirschning" 0 "26.85" 0>
  22. <MLIN MS9 5 200 320 -26 15 0 0 "Subst1" 0 "1.3 mm" 1 "5 mm" 1 "Hammerstad" 0 "Kirschning" 0 "26.85" 0>
  23. <GND * 1 620 850 0 0 0 0>
  24. <Pac P3 1 620 820 18 -26 0 1 "3" 1 "50 Ohm" 1 "0 dBm" 0 "0.5 GHz" 0 "26.85" 0>
  25. <GND * 1 1020 600 0 0 0 0>
  26. <C C4 1 930 270 -26 17 0 0 "3.6 pF" 1 "" 0 "neutral" 0>
  27. <GND * 1 1010 130 0 0 0 2>
  28. <L L2 1 1010 200 -71 -26 0 3 "6.8nH" 1 "" 0>
  29. <C C5 1 1020 500 17 -26 0 1 "3.6 pF" 1 "" 0 "neutral" 0>
  30. <MLIN MS3 5 610 320 15 -26 0 1 "Subst1" 0 "1.3 mm" 1 "1 mm" 1 "Hammerstad" 0 "Kirschning" 0 "26.85" 0>
  31. <MLIN MS2 5 610 420 15 -26 0 1 "Subst1" 0 "1.3 mm" 1 "1 mm" 1 "Hammerstad" 0 "Kirschning" 0 "26.85" 0>
  32. <MLIN MS4 5 490 320 15 -26 0 1 "Subst1" 0 "1.3 mm" 1 "1 mm" 1 "Hammerstad" 0 "Kirschning" 0 "26.85" 0>
  33. <MLIN MS6 5 440 320 15 -26 0 1 "Subst1" 0 "1.3 mm" 1 "1 mm" 1 "Hammerstad" 0 "Kirschning" 0 "26.85" 0>
  34. <MLIN MS5 5 470 430 15 -26 0 1 "Subst1" 0 "1.3 mm" 1 "1 mm" 1 "Hammerstad" 0 "Kirschning" 0 "26.85" 0>
  35. <MLIN MS8 5 330 430 15 -26 0 1 "Subst1" 0 "1.3 mm" 1 "1 mm" 1 "Hammerstad" 0 "Kirschning" 0 "26.85" 0>
  36. <MLIN MS7 5 330 320 15 -26 0 1 "Subst1" 0 "1.3 mm" 1 "1 mm" 1 "Hammerstad" 0 "Kirschning" 0 "26.85" 0>
  37. <Eqn Eqn1 1 430 10 -31 17 0 0 "S11_dB=dB(S[1,1])" 1 "S22_dB=dB(S[2,2])" 1 "S21_dB=dB(S[2,1])" 1 "yes" 0>
  38. <RFEDD RF1 1 520 830 -26 -41 0 0 "Z" 0 "1" 0 "open" 0 "44+j15" 0>
  39. </Components>
  40. <Wires>
  41. <840 370 840 440 "" 0 0 0 "">
  42. <840 440 910 440 "" 0 0 0 "">
  43. <970 440 1020 440 "" 0 0 0 "">
  44. <1020 270 1020 330 "" 0 0 0 "">
  45. <1020 390 1020 440 "" 0 0 0 "">
  46. <1020 440 1150 440 "" 0 0 0 "">
  47. <1150 380 1150 440 "" 0 0 0 "">
  48. <1020 270 1150 270 "" 0 0 0 "">
  49. <1150 270 1150 320 "" 0 0 0 "">
  50. <1320 320 1320 370 "" 0 0 0 "">
  51. <1210 320 1320 320 "" 0 0 0 "">
  52. <610 370 610 390 "" 0 0 0 "">
  53. <610 450 610 460 "" 0 0 0 "">
  54. <610 350 610 370 "" 0 0 0 "">
  55. <610 240 610 290 "" 0 0 0 "">
  56. <580 240 610 240 "" 0 0 0 "">
  57. <490 240 490 290 "" 0 0 0 "">
  58. <490 240 520 240 "" 0 0 0 "">
  59. <470 350 490 350 "" 0 0 0 "">
  60. <470 350 470 400 "" 0 0 0 "">
  61. <430 240 440 240 "" 0 0 0 "">
  62. <440 240 440 290 "" 0 0 0 "">
  63. <440 350 470 350 "" 0 0 0 "">
  64. <330 240 370 240 "" 0 0 0 "">
  65. <330 240 330 290 "" 0 0 0 "">
  66. <330 350 330 360 "" 0 0 0 "">
  67. <770 370 840 370 "" 0 0 0 "">
  68. <770 360 770 370 "" 0 0 0 "">
  69. <610 370 710 370 "" 0 0 0 "">
  70. <710 360 710 370 "" 0 0 0 "">
  71. <140 320 140 400 "" 0 0 0 "">
  72. <140 320 170 320 "" 0 0 0 "">
  73. <350 360 350 370 "" 0 0 0 "">
  74. <330 360 330 400 "" 0 0 0 "">
  75. <330 360 350 360 "" 0 0 0 "">
  76. <230 320 250 320 "" 0 0 0 "">
  77. <250 320 250 370 "" 0 0 0 "">
  78. <250 370 350 370 "" 0 0 0 "">
  79. <620 780 620 790 "" 0 0 0 "">
  80. <1010 270 1020 270 "" 0 0 0 "">
  81. <1020 440 1020 470 "" 0 0 0 "">
  82. <960 270 1010 270 "" 0 0 0 "">
  83. <840 270 840 370 "" 0 0 0 "">
  84. <840 270 900 270 "" 0 0 0 "">
  85. <1010 230 1010 270 "" 0 0 0 "">
  86. <1010 130 1010 170 "" 0 0 0 "">
  87. <1020 530 1020 600 "" 0 0 0 "">
  88. <490 780 620 780 "" 0 0 0 "">
  89. <490 780 490 830 "" 0 0 0 "">
  90. </Wires>
  91. <Diagrams>
  92. <Smith 1520 776 536 536 3 #a0a0a4 1 00 1 0 1 1 1 0 4 1 1 0 1 1 315 0 225 "" "" "">
  93. <"S[1,1]" #0000ff 0 3 0 0 0>
  94. <"S[3,3]" #ff0000 3 3 0 5 0>
  95. </Smith>
  96. <Rect 1391 203 469 363 3 #a0a0a4 1 00 1 1e+08 2e+08 1.5e+09 1 -27.517 5 2.47407 1 -1 0.2 1 315 0 225 "" "" "">
  97. <"S21_dB" #ff0000 0 3 0 0 0>
  98. <"S11_dB" #0000ff 0 3 0 0 0>
  99. </Rect>
  100. </Diagrams>
  101. <Paintings>
  102. <Rectangle 810 50 340 600 #000000 0 1 #c0c0c0 1 0>
  103. <Rectangle 80 380 170 120 #000000 0 1 #c0c0c0 1 0>
  104. <Text 120 520 12 #000000 0 "ANTENNA">
  105. <Text 450 580 12 #000000 0 "LPF">
  106. <Rectangle 290 220 520 340 #000000 0 1 #c0c0c0 1 0>
  107. <Text 980 680 12 #000000 0 "LC BALUN">
  108. <Text 1110 770 12 #000000 0 "Take a look to http://qucs.sourceforge.net/tech/node5.html">
  109. <Line 1210 450 90 290 #000000 0 1>
  110. </Paintings>
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