Consider the waveguide of Example 12.1. Calculate the phase constant for TE10 modes at the operating frequency of 15 GHz. Example 12.1 is as below not solve 12.1 A rectangular waveguide with dimensions a = 2.5 cm, b = 1 cm is to operate below 15.1 GHz. How many TE and TM modes can the waveguide transmit if the guide is filled with a medium characterized by o = 0, e = 4 ɛo, H, = 1? Calculate the cutoff frequencies AMPLE 12.1 of the modes.

The answers according to the books are 26.36 GHz, 1.151 cm, 4.604 x 10^9 m/s, 19.55 x 10^6 m/s

solve all

2. A dielectic filled (er-2.25) rectangular waveguide has dimensions a = 1.6 cm and b = 1 cm. Determine the range of frequencies over which the guide will operate single mode (TE10). Determine the phase velocity for the frequency at the center of the band

12.13 AK-band waveguide (1.067 cm × 0.533 cm) is filled by a dielectric material with ɛ, = 6.8. If it operates in the dominant TE1, mode at 6 GHz, determine the following: (a) The cutoff frequency (b) The phase velocity (c) The waveguide wavelength

[Q5] An air-filled rectangular waveguide, shown in Figiure 4, operates in TE 10 mode at a frequency of 7 GHz. The waveguide is perfectly matched and the peak value of the E-field existing any where in the guide is 10 v/m. Determine: 3- Electric and magnetic fields components that may exist in the waveguide for the given mode. 4- The average power transmitted in the waveguide. b = 1.02 cm Figure 4 as 2.29cm a = 2.29 cm O