Microwave and Wireless Communications Technology

32 PHYSICAL FOUNDATIONS OF MICROWAVE TECHNOLOGY

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Figure 3-1 Experiment to

show the movement of an

electron in an electrical field.

curved path in the direction of the positive end of the field. The degree of deflec-

tion, measured by angle O, is a function of the strength of the E field and the length

of the interaction region 1.

During its excursion through the E field, the electron retains its initial veloc-

ity, but also picks up a

translational velocity (Vt)

in the direction of the positive end

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ORIGINA L

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VA Vr

Figure 3-2 Path of an

electron curve as it enters an

electrical ...