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Microwave Engineering
book

Microwave Engineering

by Ahmad Shahid Khan
May 2014
Intermediate to advanced content levelIntermediate to advanced
800 pages
24h 50m
English
CRC Press
Content preview from Microwave Engineering
594 Microwave Engineering
The electric ux (D) at the junction is continuous and is given by
D = = = =ε ε ε ε ε ε
0 0r1 1 1 1 r2 2 2 2
E E E E( ) ( )
(14.12)
In Equation 14.12,
ε
0
is the permittivity of free space,
ε
r1
and
ε
r2
are the relative
permittivities of the two materials; thus, their permittivities are
ε
1
(=
ε
0
ε
r1
)
and
ε
2
(=
ε
0
ε
r2
). E
1
and E
2
are the electric elds on the two sides. Space charges
on the two sides follow the equality relation
x N x N
1 d 2 a
=
(14.13)
where x
1
and x
2
are the depletion widths for n-Ge and p-GaAs, respectively.
Also, E elds for the two sides can be written as
E V x
1 1 1 1
/= ( )ψ
0
(14.14a)
E V x
2 2 2 2
/= ( )ψ
0
(14.14b)
where V
1
and V
2
are the portions of biased voltages in n-Ge and p-GaAs,
respectively. ...
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Publisher Resources

ISBN: 9781466591417