Before revision: File:Spurline microstrip.png Figure : Microstrip Spurline Notch Filter (Top View) Where is the wavelength corresponding to the central rejection frequency of the bandstop filter, measured - of course - in the microstrip line material.
After revision: 1000px|center| Where is the wavelength corresponding to the central rejection frequency of the bandstop filter, measured - of course - in the microstrip line material.