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Copy pathRF_Amp_LNA_Backfeed.sch
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RF_Amp_LNA_Backfeed.sch
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<Qucs Schematic 0.0.20>
<Properties>
<View=160,-504,2631,1383,0.662058,0,0>
<Grid=10,10,1>
<DataSet=RF_Amp_LNA_Backfeed.dat>
<DataDisplay=RF_Amp_LNA_Backfeed.dpl>
<OpenDisplay=1>
<Script=RF_Amp_LNA_Backfeed.m>
<RunScript=0>
<showFrame=0>
<FrameText0=Title>
<FrameText1=Drawn By:>
<FrameText2=Date:>
<FrameText3=Revision:>
</Properties>
<Symbol>
<.ID -20 -16 SUB>
<Line -20 20 40 0 #000080 2 1>
<Line 20 20 0 -40 #000080 2 1>
<Line -20 -20 40 0 #000080 2 1>
<Line -20 20 0 -40 #000080 2 1>
</Symbol>
<Components>
<.DC DC1 5 590 -160 0 42 0 0 "26.85" 0 "0.001" 0 "1 pA" 0 "1 uV" 0 "no" 0 "150" 0 "no" 0 "none" 0 "CroutLU" 0>
<Eqn Eqn1 1 310 60 -30 16 0 0 "Gain_dB=dB(S[2,1])" 1 "Noise_Fig=dB((Vout.vn*Vin.v/Vout.v)/4.55e-10)" 1 "Input_RL=dB(S[1,1])" 1 "Output_RL=dB(S[2,2])" 1 "yes" 0>
<GND * 5 500 660 0 0 0 0>
<GND *3 5 430 780 0 0 0 0>
<R R4 1 430 750 15 -26 0 1 "100 MOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<C C8 1 350 630 -26 17 0 0 "100 pF" 1 "" 0 "neutral" 0>
<GND * 5 670 420 0 0 0 0>
<GND * 5 860 420 0 0 0 0>
<GND * 5 960 420 0 0 0 0>
<GND * 5 550 420 0 0 0 0>
<L L9 1 550 390 10 -26 0 1 "5.6 nH" 1 "" 0>
<C C6 1 670 390 17 -26 0 1 "24 pF" 1 "" 0 "neutral" 0>
<C C9 1 720 290 -26 17 0 0 "2 pF" 1 "" 0 "neutral" 0>
<L L7 1 800 290 -26 10 0 0 "68 nH" 1 "" 0>
<C C7 1 860 390 17 -26 0 1 "24 pF" 1 "" 0 "neutral" 0>
<L L8 1 960 390 10 -26 0 1 "5.6 nH" 1 "" 0>
<C C10 1 1080 290 -26 17 0 0 "100 pF" 1 "" 0 "neutral" 0>
<GND * 5 1250 320 0 0 0 0>
<GND * 5 1170 420 0 0 0 0>
<R R1 1 1170 390 15 -26 0 1 "100 MOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<C C2 1 1450 290 -26 17 0 0 "100 pF" 1 "" 0 "neutral" 0>
<L L10 1 1320 190 10 -26 0 1 "68 nH" 1 "" 0>
<C C11 1 1260 100 -26 17 0 0 "100 pF" 1 "" 0 "neutral" 0>
<C C12 1 1260 20 -26 17 0 0 "1 uF" 1 "" 0 "neutral" 0>
<GND * 5 1190 140 0 0 0 0>
<Vdc V1 1 1190 -60 18 -26 0 1 "5 V" 1>
<GND *5 5 1730 420 0 0 0 0>
<GND *6 5 1920 420 0 0 0 0>
<GND *7 5 2020 420 0 0 0 0>
<GND *8 5 1610 420 0 0 0 0>
<L L11 1 1610 390 10 -26 0 1 "5.6 nH" 1 "" 0>
<C C13 1 1730 390 17 -26 0 1 "24 pF" 1 "" 0 "neutral" 0>
<C C14 1 1780 290 -26 17 0 0 "2 pF" 1 "" 0 "neutral" 0>
<L L12 1 1860 290 -26 10 0 0 "68 nH" 1 "" 0>
<C C15 1 1920 390 17 -26 0 1 "24 pF" 1 "" 0 "neutral" 0>
<L L13 1 2020 390 10 -26 0 1 "5.6 nH" 1 "" 0>
<GND * 5 2240 420 0 0 0 0>
<Pac P2 5 2240 350 -93 7 0 1 "2" 0 "50 Ohm" 1 "-10 dBm" 0 "1 GHz" 0 "26.85" 0>
<.SP SP1 1 280 -160 0 69 0 0 "lin" 0 "10 MHz" 1 "1000 MHz" 1 "100000" 0 "yes" 1 "1" 1 "2" 0 "no" 0 "no" 0>
<.AC AC1 1 430 -160 0 42 0 0 "log" 0 "10 MHz" 1 "1000 MHz" 1 "100000" 0 "yes" 1>
<SPfile X1 1 1250 290 -26 -59 0 0 "STS1_RF_Simulations/TQP3M9036_Shut_down_mode_sparam.s2p" 1 "polar" 0 "linear" 0 "open" 0 "2" 0>
<GND *9 5 1200 1080 0 0 0 0>
<C C16 1 1330 1050 -26 17 0 0 "24 pF" 1 "" 0 "neutral" 0>
<L L14 1 1410 1130 10 -26 0 1 "8.2 nH" 1 "" 0>
<L L15 1 1490 1050 -26 10 0 0 "47 nH" 1 "" 0>
<GND *10 5 1410 1160 0 0 0 0>
<GND *11 5 980 1170 0 0 0 0>
<C C17 1 980 1140 15 -20 0 1 "19.1 pF" 1 "" 0 "neutral" 0>
<L L16 1 1060 1050 -26 10 0 0 "6.11 nH" 1 "" 0>
<GND *12 5 630 1160 0 0 0 0>
<GND *13 5 730 1160 0 0 0 0>
<C C20 1 1570 1050 -26 17 0 0 "3.3 pF" 1 "" 0 "neutral" 0>
<GND *14 5 1270 1280 0 0 0 0>
<R R5 1 1270 1250 15 -26 0 1 "100 MOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<GND *15 5 1630 1280 0 0 0 0>
<R R6 1 1630 1250 15 -26 0 1 "100 MOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<GND *16 5 1940 1080 0 0 0 0>
<SPfile X4 1 1200 1050 -26 -59 0 0 "STS1_RF_Simulations/TQP7M9106.s2p" 1 "polar" 0 "linear" 0 "open" 0 "2" 0>
<SPfile X5 1 1940 1050 -26 -59 0 0 "STS1_RF_Simulations/LFCG-490+_Plus25degC.s2p" 1 "polar" 0 "linear" 0 "open" 0 "2" 0>
<GND * 5 470 1160 0 0 0 0>
<Pac P1 5 470 1130 17 -7 0 1 "1" 0 "50 Ohm" 1 "0 dBm" 0 "1 GHz" 0 "26.85" 0>
<R R3 1 290 710 15 -26 0 1 "50 Ohm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<GND * 5 290 740 0 0 0 0>
<SPfile X3 1 500 600 -26 -89 0 0 "STS1_RF_Simulations/F2972_RF2_ON_EN_1_VCTL_1_50Ohms.s3p" 1 "polar" 0 "linear" 0 "open" 0 "3" 0>
<GND *17 5 1050 680 0 0 0 0>
<R R7 1 1050 650 15 -26 0 1 "100 MOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<L L19 1 580 1050 -26 10 0 0 "33 nH" 1 "" 0>
<L L18 1 680 1050 -26 10 0 0 "51 nH" 1 "" 0>
<L L17 1 780 1050 -26 10 0 0 "33 nH" 1 "" 0>
<C C18 1 630 1130 17 -26 0 1 "7.7 pF" 1 "" 0 "neutral" 0>
<C C19 1 730 1130 17 -26 0 1 "7.7 pF" 1 "" 0 "neutral" 0>
</Components>
<Wires>
<380 630 430 630 "" 0 0 0 "">
<430 630 470 630 "" 0 0 0 "">
<430 630 430 720 "" 0 0 0 "">
<430 570 470 570 "" 0 0 0 "">
<430 290 430 570 "" 0 0 0 "">
<430 290 550 290 "" 0 0 0 "">
<670 290 670 360 "" 0 0 0 "">
<550 290 670 290 "" 0 0 0 "">
<550 290 550 360 "" 0 0 0 "">
<960 290 960 360 "" 0 0 0 "">
<860 290 960 290 "" 0 0 0 "">
<860 290 860 360 "" 0 0 0 "">
<670 290 690 290 "" 0 0 0 "">
<750 290 770 290 "" 0 0 0 "">
<830 290 860 290 "" 0 0 0 "">
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<1170 290 1170 360 "" 0 0 0 "">
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<1190 20 1230 20 "" 0 0 0 "">
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<1290 100 1320 100 "" 0 0 0 "">
<1320 -110 1320 20 "" 0 0 0 "">
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<1320 220 1320 290 "" 0 0 0 "">
<1190 -30 1190 20 "" 0 0 0 "">
<1190 -110 1320 -110 "" 0 0 0 "">
<1190 -110 1190 -90 "" 0 0 0 "">
<1730 290 1730 360 "" 0 0 0 "">
<1610 290 1730 290 "" 0 0 0 "">
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<2020 290 2020 360 "" 0 0 0 "">
<1920 290 2020 290 "" 0 0 0 "">
<1920 290 1920 360 "" 0 0 0 "">
<1730 290 1750 290 "" 0 0 0 "">
<1810 290 1830 290 "" 0 0 0 "">
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<1480 290 1610 290 "" 0 0 0 "">
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<2240 290 2240 320 "" 0 0 0 "">
<2020 290 2240 290 "" 0 0 0 "">
<1360 1050 1410 1050 "" 0 0 0 "">
<1410 1050 1460 1050 "" 0 0 0 "">
<1410 1050 1410 1100 "" 0 0 0 "">
<980 1050 980 1110 "" 0 0 0 "">
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<730 1050 730 1100 "" 0 0 0 "">
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<1270 1050 1300 1050 "" 0 0 0 "">
<1270 1050 1270 1220 "" 0 0 0 "">
<1630 1050 1630 1220 "" 0 0 0 "">
<1630 1050 1910 1050 "" 0 0 0 "">
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<1050 570 2070 570 "" 0 0 0 "">
<1050 570 1050 620 "" 0 0 0 "">
<2240 320 2240 320 "Vout" 2270 290 0 "">
<470 1100 470 1100 "Vin" 500 1070 0 "">
</Wires>
<Diagrams>
</Diagrams>
<Paintings>
<Text 280 -210 12 #000000 0 "TX path of the STS1 COBC UHF transceiver, not including the Si4463 and it's matching according to AN648.">
</Paintings>