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Text File  |  1993-11-16  |  2KB  |  20 lines
  1. "AST1CAL3 EQUATION VARIABLE","11-16-1993","19:14:02"
  2. "LOAD=LLOAD*SIGN(ABS(LLOAD))+CLOAD*(1-SIGN(ABS(LLOAD))) XLOAD=(2*3.1415926*F0*LLOAD)*SIGN(ABS(LLOAD))+(1E6/(2*3.1415926*F0*(CLOAD+1E-30)))*(1-SIGN(ABS(LLOAD))) D1=LENGTH/VF/3E4*F0 RIN=Z0*(RLOAD*(Z0-XLOAD*TAN(2*3.1415926*D1))+(Z0*TAN(2*3.1415926*D1)+XLOAD)*RLOAD*TAN(2*3.1415926*D1))/((Z0-XLOAD*TAN(2*3.1415926*D1))^2+(RLOAD*TAN(2*3.1415926*D1))^2) XIN=Z0*((Z0*TAN(2*3.1415926*D1)+XLOAD)*(Z0-XLOAD*TAN(2*3.1415926*D1))-(RLOAD^2*TAN(2*3.1415926*D1)))/((Z0-XLOAD*TAN(2*3.1415926*D1))^2+(RLOAD*TAN(2*3.1415926*D1))^2)"
  3. "INPUT IMPEDANCE, LOSSLESS COAXIAL CABLE, LOAD IMPEDANCE. Input resistance RIN (in Ohms) and reactance XIN (in Ohms) looking into coaxial cable of length LENGTH (in cm) and D1 (in wavelengths), velocity factor VF,           characteristic resistance  Z0 (in Ohms), and terminated in a load inductance    LLOAD (in uHenries) or capacitance CLOAD (in  pFarads) in series with a         resistance RLOAD (in ohms) at  frequency F0 (in megaHertz).                     ■                                     ________________                                       |--- length ---------|   |           ---|---                                     ____________________    |           │xload│                              o-----(____________________(---|           ---|---                          Rin        coax, char. imp. Z0                    \                                                                               / rload                       Xin o---------------------------------------------|            ■             '' Type (F2) to return to application file."
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