
42 Microwave Engineering
E
j
H
y
z
= −
ωµ
∂
2
(2.38b)
In Equations 2.37 and 2.38 expressions of H
x
, H
y
, E
x
and E
y
are given in
terms of E
z
or H
z
. Similar manipulation of Equations 2.36a and 2.36b gives
∂
2
2
2
0
H
h H+ =
(2.39a)
∂
2
2
2
0
E
h E+ =
(2.39b)
In Equations 2.38 and 2.39
h
2 2 2
= +γ ω µε
(2.40)
2.17 Transverse Waves
A wave may contain E
z
, H
z
or both E
z
and H
z
components at the same time. In
case when only E
z
is present, and H
z
= 0 the H eld is entirely transverse. Such
a wave is called a Transverse Magnetic (TM) or E wave. Similarly, if H
z
is present
and E
z
is zero, E eld is entirely transverse, the wave in this case is referred
to Transverse