Attached is a scan of how Balanis define plane wave with circular polarization with Ey having a phase of +∏/2 respect to Ex component of the E field. I don't quite agree with the book. The second attachment is my derivation.(adsbygoogle = window.adsbygoogle || []).push({});

The definition of CW or CCW is with respect to direction of propagation come out of the paper as indicated in my notes ( point towards you!!).

The book claimed for propagation in -ve z direction, if phase is +∏/2 (n=0), the rotation is CW which is Left Hand Rotation. And the book said if the propagation is in +ve z direction, the rotation reverse to CCW.

But as I proofed in my notes: For propagation in -ve z direction, the function is [itex]\cos(\omega{t}+kz+\frac{\pi}{2})[/itex]. Which for t=0 and plot the wave along -z, maximum occur at [itex]kz+\frac{\pi}{2}\;=\;0\;\Rightarrow\; z=-\frac{\lambda}{4}[/itex]. This is drawn in my notes. I showed the rotation of theEin CCW and is Right Hand Rotation for propagation in -ve z direction.

On the lower part of my notes for propagation in +ve z direction, the result is backed up by "Engineering Electromagnetics" by Ulaby. That it is CW and Left Hand Rotation. Based on all these, I cautiously say Balanis is wrong. Please check my work and tell me whether I am correct or not.

Thanks

Alan

**Physics Forums - The Fusion of Science and Community**

# Verify definition of circular polarization in Balanis.

Know someone interested in this topic? Share a link to this question via email,
Google+,
Twitter, or
Facebook

- Similar discussions for: Verify definition of circular polarization in Balanis.

Loading...

**Physics Forums - The Fusion of Science and Community**