Microwave solid state devices-tunnel, veractor, gunn, impatt, trapatt etc.. Microwave vacuum tube devices, Klystron, magnetrons. Waveguides and modes of operation. Travelling wave tube. Propagation noise/ distortion and interference at microwave frequencies. Phase and group delays. Microwave antennas. Parabolic dish, helix, lens etc Features and operation of dish aerial. Detection of microwave signals Foster-Seeley discriminator and the ratio or slope detector. Microwave signal propagation and Poynting vector