Current Minima Calculator

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Transmission Line & Antenna Theory

Transmission Line Characteristics

✖Incident current is the electrical current that flows into the antenna structure from a transmission line. It is the Current wave that is traveling from the sending end to the receiving end.ⓘ Incident Current [i_id]			+10% -10%
✖Reflected current in transmission line refers to the portion of the current that is reflected back towards the source due to impedance mismatch or changes in the transmission line.ⓘ Reflected Current [I_r]			+10% -10%

✖Current Minima is the point where the resultant signal current is minimum. Current minima" refers to points along the line or antenna where the current magnitude is at its minimum value.ⓘ Current Minima [i_min]

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Formula

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Current Minima

Formula

`"i"_{"min"} = "i"_{"id"}-"I"_{"r"}`

Example

`"2.9A"="4.25A"-"1.35A"`

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Download Transmission Line & Antenna Theory Formulas PDF

Current Minima Solution

STEP 0: Pre-Calculation Summary

Formula Used

Current Minima = Incident Current-Reflected Current
i_min = i_id-I_r
This formula uses 3 Variables

Variables Used

Current Minima - (Measured in Ampere) - Current Minima is the point where the resultant signal current is minimum. Current minima" refers to points along the line or antenna where the current magnitude is at its minimum value.
Incident Current - (Measured in Ampere) - Incident current is the electrical current that flows into the antenna structure from a transmission line. It is the Current wave that is traveling from the sending end to the receiving end.
Reflected Current - (Measured in Ampere) - Reflected current in transmission line refers to the portion of the current that is reflected back towards the source due to impedance mismatch or changes in the transmission line.

STEP 1: Convert Input(s) to Base Unit

Incident Current: 4.25 Ampere --> 4.25 Ampere No Conversion Required
Reflected Current: 1.35 Ampere --> 1.35 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

i_min = i_id-I_r --> 4.25-1.35

Evaluating ... ...

i_min = 2.9

STEP 3: Convert Result to Output's Unit

2.9 Ampere --> No Conversion Required

FINAL ANSWER

2.9 Ampere <-- Current Minima

(Calculation completed in 00.004 seconds)

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Credits

Created by Vidyashree V

BMS College of Engineering (BMSCE), Bangalore

Vidyashree V has created this Calculator and 25+ more calculators!

Verified by Saiju Shah

Jayawantrao Sawant College of Engineering (JSCOE), Pune

Saiju Shah has verified this Calculator and 25+ more calculators!

< 15 Transmission Line & Antenna Theory Calculators

Gain of Parabolic Reflector Antenna

Go Gain of Parabolic Reflector Antenna = 10*log10(Efficiency Factor of Parabolic Reflector*(pi*Parabolic Reflector Diameter/Wavelength)^2)

Velocity of Propagation in Telephonic Cable

Go Velocity of Propagation in Telephonic Cable = sqrt((2*Angular Velocity)/(Resistance*Capacitance))

Phase Constant in Telephone Cable

Go Phase Constant = sqrt((Angular Velocity*Resistance*Capacitance)/2)

Return Loss(dB)

Go Return Loss = 20*log10(Incident Power Fed into Antenna/Reflected Power by Antenna)

Parallel Waveguide Distance from Cutoff Wavenumber

Go Parallel Waveguide Distance = (Mode Index*pi)/Cutoff Wavenumber

Cutoff Wavenumber in TM and TE Mode

Go Cutoff Wavenumber = (Mode Index*pi)/Parallel Waveguide Distance

Focal Length of Reflector

Go Focal Length of Reflector = ((Parabolic Reflector Diameter^2)/(16*Depth of Parabola))

Polarization Mismatch Loss

Go Polarization Mismatch Loss = -20*log10(cos(Theta))

Minimum Distance from Antenna

Go Minimum Distance from Antenna = (2*Parabolic Reflector Diameter^2)/Wavelength

Beamwidth of Reflector

Go Beamwidth = (70*Wavelength)/Parabolic Reflector Diameter

Voltage Maxima

Go Voltage Maxima = Incident Voltage+Reflected Voltage

Voltage Minima

Go Voltage Minima = Incident Voltage-Reflected Voltage

Current Maxima

Go Current Maxima = Incident Current+Reflected Current

Current Minima

Go Current Minima = Incident Current-Reflected Current

Velocity Factor

Go Velocity Factor = 1/(sqrt(Dielectric Constant))

Current Minima Formula

Current Minima = Incident Current-Reflected Current
i_min = i_id-I_r

How is current minima achieved ?

At some points , the incident and reflected signals are in phase and both the components add together and at these points current will be minimum.

How to Calculate Current Minima?

Current Minima calculator uses Current Minima = Incident Current-Reflected Current to calculate the Current Minima, The Current Minima formula is defined as the points where the resultant signal current is minimum. Current Minima is the point where the resultant signal current is minimum. Current minima" refers to points along the line or antenna where the current magnitude is at its minimum value. Current Minima is denoted by i_min symbol.

How to calculate Current Minima using this online calculator? To use this online calculator for Current Minima, enter Incident Current (i_id) & Reflected Current (I_r) and hit the calculate button. Here is how the Current Minima calculation can be explained with given input values -> 2.9 = 4.25-1.35.

FAQ

What is Current Minima?

The Current Minima formula is defined as the points where the resultant signal current is minimum. Current Minima is the point where the resultant signal current is minimum. Current minima" refers to points along the line or antenna where the current magnitude is at its minimum value and is represented as i_min = i_id-I_r or Current Minima = Incident Current-Reflected Current. Incident current is the electrical current that flows into the antenna structure from a transmission line. It is the Current wave that is traveling from the sending end to the receiving end & Reflected current in transmission line refers to the portion of the current that is reflected back towards the source due to impedance mismatch or changes in the transmission line.

How to calculate Current Minima?

The Current Minima formula is defined as the points where the resultant signal current is minimum. Current Minima is the point where the resultant signal current is minimum. Current minima" refers to points along the line or antenna where the current magnitude is at its minimum value is calculated using Current Minima = Incident Current-Reflected Current. To calculate Current Minima, you need Incident Current (i_id) & Reflected Current (I_r). With our tool, you need to enter the respective value for Incident Current & Reflected Current and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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