Roger Sparks wrote:
This WIKI article mentions the ability of an ideal voltage source to absorb power.

It says: "A primary voltage source can supply (or absorb)
energy ..."

That's easy to comprehend for a battery source. Not so
easy for an ideal RF source with a zero series impedance.
If we define an RF source as a coherent RF battery, anything
is possible (at least in our minds). Which of the following
makes more sense?

1. Destructive interference energy is stored somewhere
in the system and delivered back to the system 90 degrees
later in the cycle just as it is by a physical inductor
or capacitor.

2. An RF battery inside the ideal source stores the extra energy
in coherent RF form and delivers it back to the system as needed.

http://en.wikipedia.org/wiki/Voltage_source

It also says: "The internal resistance of an ideal voltage
source is zero;" So exactly how does something with an
internal resistance of zero absorb any power?
--
73, Cecil http://www.w5dxp.com