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Derivation of Reflection Coefficient vs SWR
Keith Dysart wrote:
Not at all. The equations don't just stop working at 0 frequency. As a matter of fact, EM waves cannot exist without photons. There is zero wave activity at DC. Therefore, the forward power and reflected power is zero at DC steady-state. You really should try to stop thinking about photons for just a short while. Yep, you guys would like to sweep the technical knowledge from the field of optical physics and quantum electro- dynamics under the rug. One wonders why. Think of it as a long pulse. That should satisfy your need to have 'waves'. No, only photons will satisfy the definition of EM waves. There are no photons. There are no waves. There are no forward and reflected powers. There are no changing E-fields or H-fields. There is not even any movement of electrons associated with the source voltage. -- 73, Cecil http://www.w5dxp.com |
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