Calculators and software from Signal Processing Group Inc.
Continuously updated with new calculators
| 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. |
| Calculate the peak fT of a bipolar given the value of tf( forward transit time) | Calculate the fT of the bipolar from tf. |
| Calculate the resistance of a semiconductor layer given width, length and sheet resistance. | Calculate the resistance of a semiconductor layer |
| Calculate the length of a semiconductor resistor given width, and sheet resistance. | Calculate the length of a semiconductor resistor, given width and sheet resistance |
| Calculate the CMOS device dimesions of a low voltage cascode current source | Calculate the CMOS device dimensions of a low voltage cascode current source |
| Calculate reactance of a capacitor given the frequency and capacitor value | Calculate the reactance of a capacitor |
| Calculate reactance of an inductor given the frequency and inductor value | Calculate the reactance of an inductor |
| Calculate the resonant frequency of a LC circuit. | Calculate resonant frequuency of a LC circuit |
| Calculate the transmission line delay TD given trace length and effective permittivity of the media. | Calculate the delay TD of a transmission line given trace length and effective permittvty of the medium |
| Calculate the physical length of the microstrip given the electrical length, the frequency and the effective permittivity. | Calculate the physical length of a microstrip given electrical length, the frequency and effective permittvty of the medium |