All of the circuit theory we learn is only an approximation to the electromagnetic field equations. When the dimensions of the circuit become comparable to the wavelength associated with the operating frequency (wavelength=c/f, where c is the speed of light and f is the frequency), the limitations of circuit theory become noticable. Transmission and reflection of signals is one of the first effects to be noticable when we transition from the circuit domain to the field domain. Then electromagnetic radiation and reception become noticable as the frequency increases (or the circuit gets bigger).i am a beginer in electronics
i read that if there is no impedance matching then you will get reflections from the load impedance. my question is how can there be reflections from a circuit
thanks