Input Impedance of Helical Antenna Calculator

↳

Electronics

Chemical Engineering

Civil

Electrical

Electronics and Instrumentation

Materials Science

Mechanical

Production Engineering

⤿

Special Antennas

Antenna Theory Parameters

⤿

✖Helix circumference of an imaginary cylinder that the helix conductor is wound around expressed in wavelengths. The ideal value for a helical antenna is 1.0.ⓘ Helix Circumference [C_λ]

+10%

-10%

✖The Input Impedance can be calculated as the current travels along the antenna and the phase varies continuously.ⓘ Input Impedance of Helical Antenna [Z_h]

⎘ Copy

👎

Formula

✖

Input Impedance of Helical Antenna

Formula

`"Z"_{"h"} = 140*"C"_{"λ"}`

Example

`"112Ω"=140*"0.8m"`

Calculator

LaTeX

Reset

👍

Download Special Antennas Formulas PDF PDF Image

Input Impedance of Helical Antenna Solution

STEP 0: Pre-Calculation Summary

Formula Used

Input Impedance = 140*Helix Circumference
Z_h = 140*C_λ
This formula uses 2 Variables

Variables Used

Input Impedance - (Measured in Ohm) - The Input Impedance can be calculated as the current travels along the antenna and the phase varies continuously.
Helix Circumference - (Measured in Meter) - Helix circumference of an imaginary cylinder that the helix conductor is wound around expressed in wavelengths. The ideal value for a helical antenna is 1.0.

STEP 1: Convert Input(s) to Base Unit

Helix Circumference: 0.8 Meter --> 0.8 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Z_h = 140*C_λ --> 140*0.8

Evaluating ... ...

Z_h = 112

STEP 3: Convert Result to Output's Unit

112 Ohm --> No Conversion Required

FINAL ANSWER

112 Ohm <-- Input Impedance

(Calculation completed in 00.020 seconds)

You are here -

Home » Engineering » Electronics » Antenna & Wave Propogation » Special Antennas » Helical Antennas » Input Impedance of Helical Antenna

Credits

Created by Passya Saikeshav Reddy

CVR COLLEGE OF ENGINEERING (CVR), India

Passya Saikeshav Reddy has created this Calculator and 10+ more calculators!

Verified by Parminder Singh

Chandigarh University (CU), Punjab

Parminder Singh has verified this Calculator and 600+ more calculators!

< 7 Helical Antennas Calculators

Beam Width between First Null (BWFN) of Helical Antenna

Go Helical Beam Width of First Null Broadside Array = 115*Helix Circumference^(3/2)/(Operational Circumference*sqrt(Turn Spacing*Number of Turns of Helical Antenna))

Gain of Helical Antenna

Go Helical Antenna Gain = 11.8+10*log10(Helix Circumference^2*Number of Turns of Helical Antenna*Turn Spacing)

Half-Power Beamwidth of Helical Antenna

Go Half Power Beam Width = 52/(Helix Circumference*sqrt(Number of Turns of Helical Antenna*Turn Spacing))

Pitch Angle of Helical Antenna

Go Pitch Angle = arctan(Turn Spacing/(pi*Helix Diameter))

Axial Ratio of Helical Antenna

Go Axial Ratio = ((2*Number of Turns of Helical Antenna)+1)/(2*Number of Turns of Helical Antenna)

Helix Circumference of Helical Antenna

Go Helix Circumference = Input Impedance/140

Input Impedance of Helical Antenna

Go Input Impedance = 140*Helix Circumference

Input Impedance of Helical Antenna Formula

Input Impedance = 140*Helix Circumference
Z_h = 140*C_λ

How is helical antenna constructed?

Helical antenna or helix antenna is the antenna in which the conducting wire is wound in helical shape and connected to the ground plate with a feeder line.

How to Calculate Input Impedance of Helical Antenna?

Input Impedance of Helical Antenna calculator uses Input Impedance = 140*Helix Circumference to calculate the Input Impedance, The Input Impedance of Helical Antenna formula is defined as travelling wave antenna, which means the current travels along the antenna and the phase varies continuously. In addition, the input impedance is primarily real and can be approximated in Ohms. Normally this is around 140 Ω, though using a different circumference value will affect it. Input Impedance is denoted by Z_h symbol.

How to calculate Input Impedance of Helical Antenna using this online calculator? To use this online calculator for Input Impedance of Helical Antenna, enter Helix Circumference (C_λ) and hit the calculate button. Here is how the Input Impedance of Helical Antenna calculation can be explained with given input values -> 112 = 140*0.8.

FAQ

What is Input Impedance of Helical Antenna?

The Input Impedance of Helical Antenna formula is defined as travelling wave antenna, which means the current travels along the antenna and the phase varies continuously. In addition, the input impedance is primarily real and can be approximated in Ohms. Normally this is around 140 Ω, though using a different circumference value will affect it and is represented as Z_h = 140*C_λ or Input Impedance = 140*Helix Circumference. Helix circumference of an imaginary cylinder that the helix conductor is wound around expressed in wavelengths. The ideal value for a helical antenna is 1.0.

How to calculate Input Impedance of Helical Antenna?

The Input Impedance of Helical Antenna formula is defined as travelling wave antenna, which means the current travels along the antenna and the phase varies continuously. In addition, the input impedance is primarily real and can be approximated in Ohms. Normally this is around 140 Ω, though using a different circumference value will affect it is calculated using Input Impedance = 140*Helix Circumference. To calculate Input Impedance of Helical Antenna, you need Helix Circumference (C_λ). With our tool, you need to enter the respective value for Helix Circumference and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search