User's Manual

E
hon
g
T
9.1.
The im
p

A
g
 Ro
 Th
e
im
p
For the
 W
h
sig
 Us
e
T
echnolo
gy
C
o
Feed Li
p
edance of
g
ood groun
d
ute the fee
d
e
width of t
h
p
edance. A
s
antenna,
h
en PCB a
n
nal strengt
h
e
as many
v
o
., Ltd 
ne and
A
the feed li
n
d
directly u
n
d
line as cu
h
e feed lin
e
s
k your PC
B
n
tenna is u
s
h
.
v
ias as pos
Figure 19:
A
ntenna
n
e between
n
der the fe
e
rve lines w
h
e
, the dista
n
B
supplier
t
s
ed, matchi
n
sible to co
n
Clearance
a
the RF po
r
e
d line is al
w
h
en neede
d
n
ce of the f
e
t
o control t
h
n
g network
s
n
nect the g
r
a
rea of ante
r
t and the a
n
w
ays need
e
d
, avoid 90
o
e
ed line to t
h
h
e impedan
c
s
shall be u
r
ound plan
e
B
nna
n
tenna sha
l
e
d for impe
d
o
r even les
s
h
e ground
p
c
e of the fe
e
sed to opti
m
e
s nearby t
h
B
luetooth Au
d
l
l be 50.
d
ance cont
r
s
degree a
n
p
lane are k
e
e
d line.
m
ize the an
h
e antenna.
d
io Module
r
ol.
n
gles style.
e
ys to the
tenna’s