Induced currents on a pair of separated dipole antennas

Click For Summary
SUMMARY

This discussion focuses on calculating induced currents on a pair of separated dipole antennas, specifically under the condition where the incident angle (Theta_in) is zero. The user seeks to derive the current expressions using the E-field directed along the Z-axis and phase as a variable of X. Key references include Chapter 24 and Chapter 25 from Orfanidis' Electromagnetic Waves and Antennas, which provide essential formulas for mutual impedance and induced voltage. The user is advised to utilize the formula for induced voltage on a dipole, specifically equation (10.11.7) from the LibreTexts manual, to find the induced current.

PREREQUISITES
  • Understanding of dipole antenna theory
  • Familiarity with mutual impedance concepts
  • Knowledge of electromagnetic field equations
  • Proficiency in LaTeX for mathematical expressions
NEXT STEPS
  • Study the derivation of induced voltage on dipoles using the formula from the LibreTexts manual
  • Research mutual impedance calculations between dipole antennas
  • Learn how to apply the E-field in antenna theory for current calculations
  • Explore advanced topics in antenna array theory for complex configurations
USEFUL FOR

This discussion is beneficial for electrical engineering students, antenna designers, and researchers focusing on electromagnetic theory and antenna performance analysis.

yefj
Messages
58
Reaction score
2
Homework Statement
induced current from incident E-fiels
Relevant Equations
mutual impedance
Hello, I need to calculate the expression for a current on two dipoles separated as shown in the attached full task .
I need to present a solution,lets take the simplest case.
Theta_in=0
1720456964545.png

I need to find the expression for the currents on the dipoles.

https://eceweb1.rutgers.edu/~orfanidi/ewa/ch24.pdf
My E-field is in Z direction and the phase is a viarable of X.
1.What expression should i use to get the current on the dipole?

After that i opened chapter 25
https://eceweb1.rutgers.edu/~orfanidi/ewa/ch25.pdf
I see that there are expressions for mutual impedance.
2What strategy do you recommend me to use to get the current on the other dipole?
Thanks.
 

Attachments

Physics news on Phys.org
Welcome to PF.

This is your schoolwork, so you need to show the Relevant Equations and your Attempt at the Solution. We do not do your homework for you.

Please show us some of your work, and please use LaTeX (see the "LaTeX Guide" link at the lower left of the Edit window). Thanks.
 
Hello berkerman, first of all I want to see what current is being induced on a single dipole.
So the question is what formula should I use for this purpose?
I have the following manual
https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electromagnetics_II_(Ellingson)/10:_Antennas/10.11:_Potential_Induced_in_a_Dipole
from the manual formula (10.11.7)
$$\widetilde{V}_1^r = -\widetilde{\bf E}_2({\bf r}=0) \cdot \hat{\bf \theta} l_e \nonumber$$
(latex is not converting code into formula)
is the right
What is my l_e and E(r=0) given my task?
Given that this the correct formula ,How given Voc i get the induced current on a single dipole?
Thanks.
1720466572809.png

$$
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
Replies
20
Views
9K
  • · Replies 3 ·
Replies
3
Views
3K
Replies
6
Views
3K
Replies
1
Views
3K
Replies
2
Views
747
  • · Replies 2 ·
Replies
2
Views
3K