5/21/2014 Impedance Calculators - Mantaro Product Development Services http://www.mantaro.com/resources/impedance_calculator.htm#embedded_microstrip_impedance 1/24 Links Resources Overview Impedance Calculators Tech Talk Impedance Calculators Below is a collection of Impedance Calculators used by Mantaro engineers and provided for your use freely. If you have any suggestions for improvement please email [email protected]. If you like these calculators please tell your friends. Please also read our Disclaimer at the bottom of the page. Discrete Structures: Wire Inductance Calculator Strap Inductance Calculator Air Core Solenoid Calculator Air Core Inductor Calculator ← New Air Core Flat Spiral Inductance Calculator Toroid Inductance Calculator Gapped Core Inductance Calculator ← New SI and SGS Magnetic Units ← New Mutual and Leakage Inductance Calculator Parallel Wire Impedance Calculator Coaxial Line Impedance Calculator Skin Depth Calculator PCB Structures: Microstrip Impedance Calculator Microstrip Impedance from Zo Calculator ← New 90 Deg Mitered Corner ← New 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 Rectangular Pad Capacitance Calculator ← New Pad Capacitance and Thermal Resistance Calculator ← New Capacitively Loaded Transmission Line Calculator Signal Management: 1%, 5%, 10% Component Value Calculator ← New 1% Resistor Divider Calculator ← New Pi and Tee Attenuator Pad Calculator Y and Delta Network Transformation Calculator 1:N Resistive Splitter Calculator Smith Chart Tutorial ← New Matching Network Calculator Series and Shunt Impedance Calculator ← New Return Loss, S11 and VSWR Calculator
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5/21/2014 Impedance Calculators - Mantaro Product Development Services
Below is a collection of Impedance Calculators used by Mantaroengineers and provided for your use freely. If you have anysuggestions for improvement please email [email protected] you like these calculators please tell your friends.Please also read our Disclaimer at the bottom of the page.
Discrete Structures:
Wire Inductance CalculatorStrap Inductance CalculatorAir Core Solenoid CalculatorAir Core Inductor Calculator ← NewAir Core Flat Spiral Inductance CalculatorToroid Inductance CalculatorGapped Core Inductance Calculator ← NewSI and SGS Magnetic Units ← NewMutual and Leakage Inductance CalculatorParallel Wire Impedance CalculatorCoaxial Line Impedance CalculatorSkin Depth Calculator
PCB Structures:
Microstrip Impedance CalculatorMicrostrip Impedance from Zo Calculator← New90 Deg Mitered Corner← NewDifferential Microstrip Impedance CalculatorDifferential Microstrip Impedance From Zo CalculatorEmbedded Microstrip Impedance Calculator
Stripline Impedance CalculatorDifferential Stripline Impedance CalculatorDifferential Stripline Impedance From Zo CalculatorAsymmetric Stripline Impedance CalculatorBroadside Coupled Stripline Impedance Calculator
Plane Impedance CalculatorRectangular Pad Capacitance Calculator ← NewPad Capacitance and Thermal Resistance Calculator ← NewCapacitively Loaded Transmission Line Calculator
Signal Management:
1%, 5%, 10% Component Value Calculator← New1% Resistor Divider Calculator← New
Pi and Tee Attenuator Pad CalculatorY and Delta Network Transformation Calculator1:N Resistive Splitter CalculatorSmith Chart Tutorial ← NewMatching Network CalculatorSeries and Shunt Impedance Calculator ← NewReturn Loss, S11 and VSWR Calculator
Note: %Error indicates the nominal difference to the target value due to value selection.%Tolerance indicates the additional +/- part to part variation due to manufacturing accuracy.
Pi and Tee Attenuator Pad 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) =
5/21/2014 Impedance Calculators - Mantaro Product Development Services
The Smith Chart graphically maps S11 = reflection coefficient= (ZL-Z0)/(ZL+Z0) toLoad Impedance (ZL), normalized to Z0 (source impedance = center of chart). TheSmith Chart achieves this by superimposing a grid on S11 that maps load impedance.Polar or rectangular grids only allow direct reading of S11. Notice that the location ofthe marker is independent of grid type, and only the Smith Chart grid enables readingthe load impedance (ZL) by inspection. SWR circles are also provided for the sake ofillustration. An Admittance Chart(YL=1/ZL) is provided for illustration as well.
Click the Z_Load buttons to see impedance examplesA Match is at dead center (reference impedance Z0 )A Short is at the far leftAn Open is at the far rightPure real impedances are along the horizontal axisPure imaginary impedances lie along the unit circleConstant real impedances lie along circlesConstant imaginary impedances lie along semi-circlesTo calculate absolute impedance multiply the Smith Chart result by Z0
Click buttons below to view S11 with on different grids:
All choices generate the same grid-less position (X,Y)=(S11re,S11im)The Smith Chart grid reads ZL=(ZLre,ZLim)The Polar grid reads S11=(S11mag, S11phase)
The Rectangular grid reads S11=(S11re,S11im)The SWR grid reads SWR=(1+|S11|)/(|1-S11|)The Admittance Chart grid reads YL=1/ZLin=(YLre,YLim)Adding series inductance moves clockwise along constant resistance circlesAdding series capacitance moves counter-clockwise along constant resistancecirclesAdding shunt inductance moves clockwise along constant admittance circlesAdding shunt capacitance moves counter-clockwise along constant admittancecirclesUse the Series and Shunt Impedance Calculator to try your own impedances
Change Grid:
Smith Polar Rect SWR Admitt Shunt Series Z and Y
5/21/2014 Impedance Calculators - Mantaro Product Development Services
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