impedance calculator

Impedance Calculators Below is a collection of very useful impedance calculators. Please feel free to use them. If you have any suggestions for improvement please email [email protected]. Also, please read our Disclaimer at the bottom of the page.

Discrete Structures: Wire Inductance Calculator Strap Inductance Calculator Air Core Solenoid Calculator Air Core Flat Spiral Inductance Calculator Toroid Inductance Calculator Mutual and Leakage Inductance Calculator Twisted Pair Impedance Calculator Coaxial Line Impedance Calculator Skin Depth Calculator

PCB Structures: Microstrip Impedance Calculator Differential Microstrip Impedance Calculator Differential Microstrip Impedance From Zo Calculator Embedded Microstrip Impedance Calculator

Stripline Impedance Calculator Differential Stripline Impedance Calculator Differential Stripline Impedance From Zo Calculator Asymmetric Stripline Impedance Calculator Broadside Coupled Stripline Impedance Calculator

Plane Impedance Calculator Capacitively Loaded Transmission Line Calculator

Signal Management: Pi and Tee Attenuator Pad Calculator Y and Delta Network Transformation Calculator 1:N Resistive Splitter Calculator Return Loss and VSWR Calculator Matching Network Calculator Series to Parallel Impedance Conversion Calculator (NOTE: Formulas with dimensions are shown in mm)

Wire Inductance Calculator:

Dimensional units: mm mils

len (length) = 25.4

d (diameter) = 0.5

Calculate

of 17Impedance Calculators - Mantaro Product Development Services

10/31/2011http://www.mantaro.com/resources/impedance_calculator.htm

Strap Inductance Calculator:


Air Core Solenoid Calculator:


Air Core Flat Spiral Inductance Calculator:


L (Inductance, nH) =

len (length) = 25.4

w (width) = 5.0

t (thickness) = 1.0

Calculate


d (diameter) = 5.0

len (length) = 1.0

N (number of turns) = 5

Calculate


d1 (outer diameter) =



Toroid Inductance Calculator:


Mutual and Leakage_Inductance Calculator:

6.35

d2 (inner diameter) = 3.175


Calculate


len (Length) = 6.35

d1 (outer diameter) = 6.35

d2 (inner diameter) = 3.175

ur (relative permeability) = 1000


Calculate




Note: Calculations assume zero coil resistance

Twisted Pair Impedance Calculator:

L1 (Inductance, uH) = 1200

L2 (Inductance, uH) = 300

From Lseries (uH)= 2580

From Lshunt (uH)= 228

From M (uH)= 540

From k = 0.90

L1_leak (Inductance, uH)) =

L2_leak (Inductance, uH) =




Coaxial Line Impedance Calculator:

Dimensional units: mm mil

s (wire separation) = 10

d (wire diameter) = 5

er (relative dielectric constant) = 2.0

Calculate

(Inductance, nH/unit len) =

(Capacitance, pF/unit len) =

Zo (Impedance, Ohms) =

(Propagation Delay, ps/unit len) =

di (inner diameter) = 1

do (outer diameter) = 4.7

ur (relative magnetic permeability) = 1.00


Calculate




(Propagation Delay, ps/unit len) =



Skin Depth Calculator:

Dimensional units: metric english

rho (resistivity, nOhms*m) = 17.2


TC (temp coefficient, ppm/C) = 3900

T (operating temperture, Deg C) = 20

Fo (frequency, MHz) = 1.00

AWG (Wire Gauge) = 30

Calculate

Skin Depth, Sdepth (unit len) =

Wire Diameter, D (unit len) =

Wire Area, A (unit area) =

DC Resistance, Rdc (Ohms/unit len) =



Default Material = Copper

Microstrip Impedance Calculator:

Note: valid for (w/h) from 0.1 to 3.0 Dimensional units: mm mils

Note: 1oz = 1.4mils = 0.03556mm

Differential Microstrip Impedance Calculator:

Note: valid for (w/h) from 0.1 to 3.0 Dimensional units: mm mils

Note: 1oz = 1.4mils = 0.03556mm

AC Resistance, Rac (Ohms/unit len) =

w (trace width) = 5

t (trace thickness) = 1.4

h (dielectric thickness) = 4.7


Calculate

Zo (Single Ended Impedance, Ohms) =

Propagation Dealy, Tpd (ps/unit len) =



w (trace width) = 5

d (trace separation) = 5




Calculate

Zd (Differential Impedance, Ohms) =



Differential Microstrip Impedance From Zo Calculator:


Embedded Microstrip Impedance Calculator:

Note: valid for (h1/h) greater than 1.2 Dimensional units: mm mils

Note: 1oz = 1.4mils = 0.03556mm

Zo (single ended impedance, Ohms) = 60.6



Calculate

Zd (Impedance, Ohms) =

w (trace width) = 5


h (trace dielectric thickness) = 4.5

h1 (overall dielectric thickness) = 6.0


Calculate







Stripline Impedance Calculator:

Note: valid for (w/h) from 0.1 to 2.0 and (t/h) less than 0.25 Dimensional units: mm mils

Note: 1oz = 1.4mils = 0.03556mm

Differential Stripline Impedance Calculator:


Note: 1oz = 1.4mils = 0.03556mm

w (trace width) = 4


h (dielectric thickness) = 6


Calculate





w (trace width) = 4



h (dielectric thickness) = 6


Calculate




Differential Stripline From Zo Impedance Calculator:


Asymmetric Stripline Impedance Calculator:


Note: 1oz = 1.4mils = 0.03556mm

Zo (single ended impedance, Ohms) = 50



Calculate


w (trace width) = 4.5


h (smaller dielectric thickness) = 5

h1 (larger dielectric thickness) = 6.5


Calculate







Broadside Coupled Stripline Impedance Calculator:


Note: 1oz = 1.4mils = 0.03556mm

Plane Impedance Calculator:

Dimensional units: mm mil

w (trace width) = 5


h (outer dielectric thickness) = 5

h1 (center dielectric thickness) = 5


Calculate





w (width) = 3000

h (height) = 10





Capacitively Loaded Transmission Line Calculator:

Dimensional units: mm inch

Pi and Tee Attenuator Pad Calculator:

Calculate

L (inductance, nH) =

C (capacitance, pF) =

Zo (unloaded trace impedance, Ohms) = 60

Tpd (unloaded propagation delay, ps/unit len) = 180

Cl (distributed capacitve load, pf) = 15

len (transmission line Length) = 2.0

Calculate

Zl (loaded Impedance, Ohms) =

Tpdl (Loaded Propagation Dealy, ps/unit len



Y and Delta Network Transformation Calculator:

Port 1 Characteristic Impedance, Z1 (Ohms) = 50

Port 2 Characteristic Impedance, Z2 (Ohms) = 50

A (Attenuation, dB) = 3

Calculate

Pi Attenuator Pad: R1 ( Ohms) =

R2 ( Ohms) =

R3 ( Ohms) =Tee Attenuator Pad: R1 ( Ohms) =

R2 ( Ohms) =

R3 ( Ohms) =



1:N Resistive Splitter Calculator:

Y Impedance, R1 (Ohms) = 50



Transform Y to Delta:

Y to Delta

Delta Impedance, Ra (Ohms) = 150

Delta Impedance, Rb (Ohms) = 150

Delta Impedance, Rc (Ohms) = 150

Transform Delta to Y:

Delta to Y

Add Series/ Parallel Resistor: None>

Add R (Ohms)= 100

Port Characteristic Impedance, Zo (Ohms) = 50

N (Number of split ports, 1:N) = 2

A (Attenuation, dB) = 3

Calculate

Series Resistance - R1 ( Ohms) =



Return Loss and VSWR Calculator:

Matching Network Calculator:

Shunt Resistance - R2 ( Ohms) =

Port Z1 Real, Imaginary Impedance (Ohms) = , 50 j 0


Calculate

Reflection Coefficient (Lin Mag,Deg) = ,

Return Loss = S11 (dB, Deg)= ,

Mismatch Loss (ML, dB)=

VSWR =



Operating Frequency, Fo (MHz) = 500



Series to Parallel Impedance Conversion Calculator:

Calculate

Lower, Higher Impedance Port ZLOW= ZHIGH=

Option 1:Series, Shunt Matching Impedance (Ohms) ja= jb=

Series Reactance ja =

Shunt Reactance jb =

Option 2:Series, Shunt Matching Impedance (Ohms) ja= jb=

Series Reactance ja =

Shunt Reactance jb =

Series Impedance (Z=a+jb) Ohms = ,48 j -24

Parallel Impedance (Z=c//jd) Ohms = ,60 j -120

Z (Ohms, Deg) = ,

Series to Parallel

Parallel to Series

r+jx (Ohms)

Add Series Impedance

Add Shunt Impedance, j

Operating Frequency (MHz) = 500

C (pF)

Add Series Capacitance

Add Shunt Capacitance

L (nH)

Add Series Inductance



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Add Shunt Inductance

Reference Impedance (Z0r,jZ0i) Ohms = ,50 j 0

VSWR =

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