# android-design.nl

## RF & Microwave Toolbox lite

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This lite version includes the following tools:

1) PI and T attenuator

2) Reflectometer (VSWR, Return loss)

3) Mismatch error limits (VSWR, Return loss)

4) Parallel LCR impedance/resonance

5) capacitor impedance

6) lowpass filter

7) Capacitor plate calculator

8) Power and Voltage Converter

9) Coupler directivity calculator.

Tools in full version includes;

1.Noise floor (Kelvin,dBm)

2.Amplifier cascade (NF, Gain, P1db, OIP2, OIP3)

3.Radar equation (2-way path loss)

4.Radio equation (1-way path loss)

5.Power and voltage converter (W,dBm,V,dBµV)

6.Field intensity and power density converter (W/m2, V/m, A/m, Tesla, Gauss,dBm, W)

7.Mismatch error limits (VSWR, Return loss)

8.Reflectometer (VSWR, Return loss)

9.Mitered Bend

10.Divider and Couplers (Wilkinson, Rat race, Branchline , microstrip and lumped)

11.Balanced and und balanced PI and T attenuator

12.Skin depth (DC and AC resistance)

13.PCB Trace calculator (impedance/dimensions)

- Microstrip

- Stripline

- Coplanar waveguide

- Coupled microstrip

- Coupled stripline

14.Image rejection (amplitude and phase imbalance)

15.Mixer harmonics (up and down convertion)

16.Helical antenna

17.Peak to RMS (peak, RMS, average, CF)

18.Air Core Inductor Inductance

19.Parallel plate Capacitor

20.PI and T attenuator

21.Ohm's Law

22.Parallel LCR impedance/resonance

23.Series LCR impedance/resonance

24.Inductor impedance

25.Capacitance impedance

26.Antenna temperature (Kelvin)

27.Radar Cross Section (RCS) calculator (Sphere,Cylinder, flat plate, corners, dBsm)

28.Noise Figure Y-Factor Methode

29.EMC (EIRP, ERP, dBµV/m)

30.Noise figure converter (dB, linear, Kelvin)

31.Frequency Band Designations (IEEE Radar band, Military Radar band, Radio band, Satellite, Wavefuide band)

32.Resistor color code (reverse lookup, 3 to 6 band)

33.Filter Design (Butterworth, Chebyshev, prototype):

- Low pass

- High pass filter

- Band pass

- Band stop filter

34.µ-Filter Design (microstrip, stripline):

- Interchange of Circuits

- Kuroda's Identities

- Series and Shunt Circuit lines

- Coupled line Circuits

- Stepped Impedance

35) PCB Trace Width and Clearance Calculator

36) Series and Parallel component (R, L and C) calculations.

37) Reverse Series and Parallel resistor calculations.

38) Inductor Color Code Calculator.

39) Capacitor Charge Calculator.

40) Led Resistor Calculator.

41) Voltage Divider Calculator.

42) Thin Film Resistor Calculator (Trim and non Trim)

43) Opamp Calculator

44) Lumped Balun Calculator

45) Wavelength calculator

46) L-Network Matching Calculator

47) LCR Parallel - Series Conversion Calculator

48) PI & T-Network Matching Calculator

49) Coax Line Calculator

50) Twisted pair Calculator

51) Lumped-Distributed Equivalences calculator

52) Fresnel Calculator

53) Inductor Charge Calculator.

54) Heat Sink temperature calculator

55) Thermal via calculator

56) Coupler directivity calculator

57) Cavity resonance calculator

## Resistor Color Code

Or Reverse:

Enter a resistor value and find the color code.

If the value is not an standard E-series value the two nearest values are shown.

* 3, 4, 5 and 6 band resistor support *

If the resistor has a standard E-series value then also the E-series (E3, E6,E12, E24, E48, E96, E192) number will be shown.

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## LED Resistor Calc

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## Opamp Calculator

Feature list:

- Inverting Amplifier

- Non inverting Amplifier

- Differential Amplifier

- Inverting Summing Amplifier

- Summing Amplifier

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## RF & Microwave Toolbox

If the reviews are not visible please use this link: https://play.google.com/store/apps/details?id=mwave.mwcalculator_pro&hl=en

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With the following tools:

(This Toolbox contains also all the tools of the Analog Toolbox, PCB Trace Calculator and Resistor Color Code Calculator.)

1) Noise floor (Kelvin,dBm)

2) Amplifier cascade (NF, Gain, P1db, OIP2, OIP3)

3) Radar equation (2-way path loss)

4) Radio equation (1-way path loss)

5) Power and voltage converter (W,dBm,V,dBµV)

6) Field intensity and power density converter (W/m2, V/m, A/m, Tesla, Gauss,dBm, W)

7) Mismatch error limits (VSWR, Return loss)

8) Reflectometer (VSWR, Return loss)

9) Mitered Bend

10) Divider and Couplers (Wilkinson, Rat race, Branchline , microstrip and lumped)

11) Balanced and und balanced PI and T attenuator

12) Skin depth (DC and AC resistance)

13) PCB Trace calculator (impedance/dimensions)

- Microstrip

- Stripline

- Coplanar waveguide

- Coupled microstrip

- Coupled stripline

14) Image rejection (amplitude and phase imbalance)

15) Mixer harmonics (up and down convertion)

16) Helical antenna

17) Peak to RMS (peak, RMS, average, CF)

18) Air Core Inductor Inductance

19) Parallel plate Capacitor

20) PI and T attenuator

21) Ohm's Law

22) Parallel LCR impedance/resonance

23) Series LCR impedance/resonance

24) Inductor impedance

25) Capacitance impedance

26) Antenna temperature (Kelvin)

27) Radar Cross Section (RCS) calculator (Sphere,Cylinder, flat plate, corners, dBsm)

28) Noise Figure Y-Factor Methode

29) EMC (EIRP, ERP, dBµV/m)

30) Noise figure converter (dB, linear, Kelvin)

31) Frequency Band Designations (IEEE Radar band, Military Radar band, Radio band, Satellite, Waveguide band)

32) Resistor color code (reverse lookup, 3 to 6 band)

33) Filter Design (Butterworth, Chebyshev, prototype):

- Low pass

- High pass filter

- Band pass

- Band stop filter

34) µ-Filter Design (microstrip, stripline):

- Interchange of Circuits

- Kuroda's Identities

- Series and Shunt Circuit lines

- Coupled line Circuits

- Stepped Impedance

35) PCB Trace Width and Clearance Calculator

36) Series and Parallel component (R, L and C) calculations.

37) Reverse Series and Parallel resistor calculations.

38) Inductor Color Code Calculator.

39) Capacitor Charge Calculator.

40) Led Resistor Calculator.

41) Voltage Divider Calculator.

42) Thin Film Resistor Calculator (Trim and non Trim)

43) Opamp Calculator

44) Lumped Balun Calculator

45) Wavelength calculator

46) L-Network Matching Calculator

47) LCR Parallel - Series Conversion Calculator

48) PI & T-Network Matching Calculator

49) Coax Line Calculator

50) Twisted pair Calculator

51) Lumped-Distributed Equivalences calculator

52) Fresnel Calculator

53) Inductor Charge Calculator.

54) Heat Sink temperature calculator

55) Thermal via calculator

56) Coupler directivity calculator

57) Cavity resonance calculator

Please let me know if there are Electronic and RF & Microwave related tools that you would like to be added.

You can send me an email for a feature request.

## Counting for kids

The math game has different levels.

The game works on tablet and smartphone.

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## Signal Generator

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Normally you see only reviews from your own country.

Follow the link below to see more reviews:

http://play.google.com/store/apps/details?id=android_design.signal_generator&hl=en

## Analog electronics Toolbox

All the tools in this app are also included in the RF & Microwave Toolbox app.

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Feature list:

1) PI and T attenuator

2) Power and voltage converter

3) Parallel LCR impedance/resonance

4) Series LCR impedance/resonance

5) Inductor impedance

6) Capacitance impedance

7) Ohm's Law

8) Radio equation calculator (1-way path loss)

9) Air Core Inductor Inductance Calculator

10)Capacitor impedance

11)Noise floor

12)Amplifier cascade (NF, Gain, P1db, OIP2, OIP3)

13)Low Pass filter

14)High Pass filter

15)Helical antenna

16)Band Pass filter

17)Band Stop filter

18)Peak to RMS (peak, RMS, average, CF)

19)Mixer harmonics

20)Resistor Color Code calculator.

21)PCB Trace Width and Clearance Calculator

22)Series and Parallel component (R, L and C) calculations.

23)Reverse Series and Parallel resistor calculations.

24)Inductor Color Code Calculator.

25)Capacitor Charge Calculator.

26)Led Resistor Calculator.

27)Voltage Divider Calculator.

28)Opamp Calculator

29)Wavelength calculator

30)LCR Parallel - Series Conversion Calculator

31)Inductor Charge Calculator.

32) Heat Sink temperature calculator

33) Thermal via calculator

Also checkout the RF & Microwave Toolbox which has all the tools of this Electronic Toolbox and the RF & Microwave tools.

Please let me know if there are electronic related tools that you would like to be added.

## Wind Turbine Estimator beta

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Calculate:

- Rated output power (kw)

- Annual Energy Output (kwh/year)

- Cost of wind power (k€/kwh)

- Annual Profit (k€)

- Return on Investment (%)

- Break even Point (Years)

- CO2 reduction (Tonnes/Year)

Input:

- Rotor size

- Wind Turbine cost (k€/kw)

- Wind turbine revenue (€/kwh)

- Turbine efficiency

- Generator efficiency

- Mechanical efficiency

- Capacity Factor (%)

- Land lease cost (%)

- Operations and Maintenance cost (%)

## Ohm's Law

Feature list:

1)Ohm's Law

2)Resistor Color Code calculator.

3)Series and Parallel component (R, L and C) calculations.

4)Reverse Series and Parallel resistor calculations.

Also checkout the RF & Microwave Toolbox or the Analog Toolbox.

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## PCB Thermal Calculator

Calculate the Junction Temperature of a device or calculate the needed heat sink for a

certain Junction Temperature.

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## PCB Trace Calculator

All the tools in this app are also included in the RF & Microwave Toolbox app.

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With the following tools:

1) PCB Trace calculator (impedance/dimensions)

- Microstrip

- Stripline

- Coplanar waveguide

- Coupled microstrip

- Coupled stripline

2) PCB Trace Width and Clearance calculator

3) Heat Sink temperature calculator

4) Thermal via calculator

## Signal Generator 2 beta

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## SWR Calculator

The Directivity Error Calculator shows the accuracy of a reflection measurement of unknown impedance. It bases its readings on the directivity of the coupler used for the measurement. It is also a convenient way to convert a reflection coefficient to an equivalent standing wave ratio (SWR), return loss, or mismatch loss.

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## Resistor Color Code no ads

(This is the version without advertising)

Or Reverse:

Enter a resistor value and find the color code.

If the value is not an standard E-series value the two nearest values are shown.

* 3, 4, 5 and 6 band resistor support *

If the resistor has a standard E-series value then also the E-series (E3, E6,E12, E24, E48, E96, E192) number will be shown.

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Google+: http://gplus.to/androiddesignnl

This tool is also included in the

- RF & Microwave Toolbox

- Analog Toolbox

## Do not follow me

When active, you can no longer be followed by the stores when doing shopping.

## Quick Calc (game)

The game starts with easy sums and will be harder as the game progresses.

Try it out and challenge your friends to get the highest score.

The faster you solve a sum the more bonus points you get.