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Foundations of Wireless and Electronics, 10th Edition
book

Foundations of Wireless and Electronics, 10th Edition

by M. G. Scroggie, S. W. Amos
October 2013
Intermediate to advanced content levelIntermediate to advanced
570 pages
27h 46m
English
Newnes
Content preview from Foundations of Wireless and Electronics, 10th Edition
396
symbol for it is f
T
, but this one is sometimes taken to mean the
product of low-frequency h
fe
and bandwidth. As the bandwidth is
regarded as the frequency band up to the3 dB point, this
Fig.
22.
JO
Simplified high-frequency
phasor diagram for a transistor,
derived from Fig. 22.9
interpretation of f
T
gives it the same value: 40x0.8 MHz in this
example. But this is only so in this rather over-simplified theory of
the relationship between /?
fe
and frequency, and in practice the
different definitions of /, and f
T
may result in slightly different
values.
The same zero-dB frequency is also normally nearly the same as
that at which is 3 dB down ...
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Publisher Resources

ISBN: 9781483105574