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5.1.3. Re
eference D
Design
The referen
nce design o
of ANT_MAIN
matching ci
rcuit for bett
ter RF perfo
NOTES
1.
Keep a
a proper dis
stance betw
receivin
ng sensitivity
y.
2.
ANT_D
DIV
function
is enabledb
receive
e diversity.
5.2. GNS
SS Anten
nna Inter
The followin
ng tables sho
ow the GNS
EC25-A_Us
E
All manuals and user guides at all-guides.com
N and ANT_
_DIVantenna
ormance. Th
e capacitors
Modu
ule
AN
NT_MAIN
C1
NM
ANT_DIV
A
C3
NM
Figure 2
27: Referenc
ce Circuit o
ween the m
main antenn
by default. U
Use the AT c
rface
SS antenna
pin definition
ser_ManualC
Confidentia
a is shown a
as below. It
s are not mo
ounted by de
Main
antenna
R1
0R
C2
NM
Diversity
antenna
R2
0R
C4
NM
of Antenna
Interface
a and theR
Rx-diversitya
command
AT
T+QCFG="d
n and freque
ency specific
al / Release
d
48 / 6
LTE Module
L
e
EC25-AU
ser Manua
al
should rese
rve a π-type
e
efault.
antenna to
improve the
e
can disable
e
diversity",0
0
cation.
69
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