A rectangular hollow metal waveguide has dimensions a= 2.29 cm and b = 1.02 cm. Microwave power at 10 GHz is transmitted through the waveguide in the TE10 mode.
(a) Calculate the cut-off wavelength and the guide wavelength for this mode.
(b) What are the other (TE or TM) modes that can propagate through the waveguide?
(c) If a = b = 2.29cm, What are the modes which can propagate through the waveguide?
A baseband signal g(t) bandlimited to 100 Hz modulates a carrier of frequency f0 Hz. The modulated singal g(t)cos2πf t is transmitted over a channel whose input x and output y are related by y = 2x + x2. The spectrum of g(t) is shown in Figure. Sketch the spectrum of the transmitted signal and the spectrum of the received signal.