Electromagnetic Diagram of 4 Antenna Array - Philip's Question

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Homework Help Overview

The discussion revolves around the concept of a four antenna array arranged in a square formation, with a focus on understanding the interaction of electromagnetic waves emitted from these antennas. The original poster seeks a diagram to visualize this arrangement and its implications for radiation patterns.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the definition of an "electromagnetic diagram" and the specific type of antennas involved. There is also an inquiry into the rationale behind arranging the antennas in a square formation and how this affects radiation directionality.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the original question. Some guidance has been provided regarding the potential direction of strongest radiation based on antenna placement, but no consensus has been reached on the specifics of the diagram or the types of antennas.

Contextual Notes

There is a noted lack of detailed information in the original homework problem regarding the types of antennas and their characteristics, which may affect the discussion. The original poster mentions that the relevant material is found in a chapter on physical optics, which may not cover antennas in depth.

philipc
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Just wondering if anyone happens to have an electromagnetic diagram of how a four antenna array would look. Provided that all four antennas’ form a square and edges are one wavelength in distance?
Thanks
Philip
 
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What is an "electromagnetic diagram?" What kind of antennas? Dipoles? Why would you want to make a square out of them?

- Warren
 
sorry I kind of made up the term "electromagnetic diagram", I just wanted to see how the electromagnetic waves interact with each other(being from the 4 different antennas).


"What kind of antennas? Dipoles?"
The homework problem does not make mention of this

"Why would you want to make a square out of them?"
The question is asking in what horizontal direction will the combined radiation be the strongest at great distance away.

Unfortunately my book does not go into dept about antennas, it is in a chapter regarding physical optics.
Philip
 
Thinking about it this morning, I'm guessing the direction where the strongest combined radiation will be diagonally from the corners. I'm figuring this because you would have 3 antennas contributing in constructive interference?
Philip
 
Originally posted by philipc
sorry I kind of made up the term "electromagnetic diagram", I just wanted to see how the electromagnetic waves interact with each other(being from the 4 different antennas).

are you referring to a diagram of the antenna array's directivity?
 

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