zodiff | ## Calculate the characteristic impedance of differential microstrip lines. |
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zo_low_loss_calc | ## Calculation of the characteristic impedance of low loss transmission lines |

zdiff | ## Calculate the differential impedance of edge coupled parallel microstrip lines |

XL_calculate | ## Calculate inductive reactance of a tranmission line from electrical length given permittivity, frequency and characteristic impedance |

wdivider_1 | ## Calculation of the frequency dependent effective permittivity efff |

wavelength_calc | ## Calculation of the wavelength in media |

watts2dbm | ## Watts to dbm calculator |

vswr2returnloss | ## VSWR to return loss conversion. ( Return loss = -20log10(magnitude of reflection coefficient)) |

vrms2dbm | ## Convert rms voltage to dBm |

voltage_ideal_line | ## Voltage distribution on an ideal transmission line |

voltage_general_line | ## Voltage distribution on a general transmission line |

ufactor | ## ufactor is a measure of stability |

typet | ## Calculations for a type-t attenuator |

typepi | ## Calculations for a type-pi attenuator |

typeb | ## Calculations for a type-b network |

typea | ## Calculations for a type-a network |

tracecurrent_calc | ## Calculate the current carrying capability of a pcb trace both external and internal |

TOUT | ## Calculate the output reflection coefficient of a two port. |

TIN | ## Calculate the input reflection coefficient of a two port. |

shorted_lowloss_line_z | ## Calculate the impedance of a shorted low loss line |

shorted_ideal_line_zin | ## Calculate the input impedance of a shorted ideal line |

shorted_general_line_zin | ## Calculate the impedance of a shorted general line |

sfdr_calc | ## Calculate the spurious free dynamic range. |

series_parallel_conversion | ## Convert a series circuit to its equivalent parallel form. |

returnloss2vswr | ## Calculate vswr from return loss |

retloss2refcoeff | ## Calculate the reflection coefficient from return loss |

reflectioc2vswr | ## Calculate the reflection coefficient from vswr |

reflectioc2imped | ## Calculate the impedance from the reflection coefficient |

refcoeff2retloss | ## Calculate the return loss from the reflection coefficient |

rect2pole_calc | ## Convert a number in complex format to polar format |

reactance1_calc | ## Calculate impedance from L and C and frequency |

qw | ## Quarter wave transmisson line matching |

quarterwave_lowloss_line_z | ## Quarter wave low loss line impedance |

quarterwave_ideal_line_z | ## Quarter wave ideal line impedance |

quarterwave_general_line_z | ## Quarter wave general line impedance |

propagation_constant_calc_new | ## Calculation of the propagation constant of ideal lines with real part equal to 0.0 |

propagation_constant_calc | ## Calculation of the propagation constant of lowloss lines |

polar2_rect_calc | ## Convert a number from polar format to a complex number format. |

phase_velocity_calc | ## Calculate the phase velocity of a signal on ideal transmission lines. |

pcbresistance | ## Calculate the resistance of pcb traces assumng copper traces. |

pcbcapacitance | ## Calculate the capacitance of a pcb trace. |

pcb_z0c0 | ## Calculate the characteristic impedance, capacitance and propagation delay of a pcb trace. |

parallel_series_conversion | ## Convert a parallel circuit to an equivalent series circuit. |

open_lowloss_line_z | ## Calculate the impedance of an open lowloss transmission line. |

open_ideal_line_z | ## Calculate the impedance of an open ideal transmission line |

open_general_line_z | ## Calculate the impedance of an open general line. |

noisetemp_calc | ## Calculate the noise temperature from the noise figure and the noise figure from the noise temperature |

mismatch_loss | ## A mismatch loss calculator. |

microstripzo_pcb | ## Micostrip characteristic impedance calculator for PCB traces |

microstripzo | ## Microstrip characteristic impedance calculator |

microstripL | ## Calculate the inductance of a microstrip trace for PCB traces |

microstrip_gap | ## Calculate the capacitance of a microstrip gap. |

mic_amp | ## Calculate single stage amplifier gains |

lowloss_line_zin | ## Calculate the input impedance of a lowloss line |

lcbalun | ## Calculate the parameters of an LC balun. For the circuit check blog post on the SPG blog |

lc_calc | ## Calculate L and C from a given reactance value. |

l_calc | ## Calculate the physical length from the electrical length of a line |

kfactor | ## Calculate Rollet's K factor |

iotf | ## Calculate modified TIN and TOUT |

inductancs_calc | ## Calculate the inductance of a PCB trace |

impedance2refcoeff | ## Calculate the reflection coefficient from the impedance level. |

imp2admit | ## Convert impedance to admittance |

ideal_line_zin | ## Calculate the input impedance of an ideal line. |

halfwave_lowloss_line_z | ## Calculate the impedance of a half wave low loss line. |

halfwave_ideal_line_zi | ## Calculate the impedance of a half wave ideal line |

halfwave_general_line_z | ## Calculate the impedance of a half wave general line |

fract_wavelength_calc | ## Calculate the fractional wavelegth. |

flicker_noise_calc | ## Calculate flicker noise |

el_calc_new | ## Calculate electrical length |

dbm2watts | ## Convert a dBm value to watts. |

dbm2vrms | ## Convert a dBm value to a rms voltage |

current_ideal_line | ## Current in an ideal line at a distance x. |

current_general_line | ## Current at a distance x in a general line |

crvolts | ## Calculate the differential voltage across the base-emitter junctions of bipolars with various ratios of current flowing through them. |

complexz | ## Complex impedance matching with a transmission line |

combine_parallel_Z | ## Combine parallel reactances |

casline_new | ## Cascade transmission line matching |

calculate_one_parallel_reactance | ## Calculate the reactance value from the parallel combined reactance value and one other reactance ( impedance matching algorithm. See book on impedance matching) |

calc_shorted_stub_suscep | ## Calculate the susceptance of a shorted stub |

calc_open stub_suscep | ## Calculate the susceptance of an open stub |

addmit2imped | ## Convert admittance to impedance. |

B1 | ## Calculate B1 for a stability check. |

GMAX | ## Calculate GMAX for a stability check. |

First order RC Filter | ## Calculations for the first order RC filter. |

MOSFET gate oxide capacitance | ## Calculate the gate oxide capacitance of a MOSFET. |

MOSFET transconductance calculate | ## Calculate the transconductance of a MOSFET. |

Calculate the threshold of a MOSFET with body effect | ## Calculate the threshold voltage of a MOSFET with body effect in strong inversion. |

Calculate the effective gate voltage of a MOSFET | ## Calculate the effective gate voltage of a MOSFET. |

Calculate the gm of a MOSFET in saturation | ## Calculate the gm of a MOSFET in saturation. |

Calculate the surface potential of a MOSFET in strong inversion | ## Calculate the surface potential of a MOSFET in strong inversion. |

Calculate the body effect parameter for a MOSFET | ## Calculate the body effect parameter for a MOSFET. |

Calculate the saturation current for a MOSFET in strong inversion | ## Calculate current for a MOSFET in the saturation region in strong inversion. |

Calculate u0.Cox.W/L for a MOSFET in strong inversion given the drain current and effective gate voltage | ## Calculate KP.W/L for a MOSFET in strong inversion given drain current and effective gate voltage. |