Answer all the following questions. Be honest to yourself as God is watching us.
To replace the free space medium microwave propagation
To allow the wave to travel down the device smoothly
To make full use of the medium in order to achieve efficient transmission
To allow the microwave energy to be guided in a certain transmission medium
To minimize losses dissipated in the free space
Dimensions of the waveguide
Frequency of operation
Aperture of the waveguide
Propagation mode of operation
Selection of materials
The frequency of operation plays an important factor in orientating the electric field distribution
The dimensions of the waveguide enable the selection of the frequency of operation
The mode of operation influences the direction of electric field
The cut-off frequency of the waveguide contributes to the change in the microwave propagation
Non of the above
It is similar with the opreration of electronic tubes
Microwva tubes consist of klystrons, magnetrons and photons
Microwave tubes can be divided into klystrons, magnetrons and travelling wave tubes
Microwave tubes use electron beam which allows interation between space charge waves and electromagnetic fields
Microwave tubes are linear beam which can also be recognized as o-type tubes which have similar direction between electric and magnetic fields
Propagation constant
Impedance matching
Gain
Dielectric loss
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