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Taipei, 114, Taiwan, R.O.C.
Tel : 886-2-87510688 Fax : 886-2-87525889
http://www.gtcm2m.com
9. External Antenna
The GBS 535-MD-01A/GBS 535-MD-01AP implements the on board printed antenna and
the GBS 535-MD-01B/GBS 535-MD-01BP uses the U.FL connector for the external
antenna. The co-layout capacitors, C1, C3 as shown in figure 9.1, are designed to
satisfy the antenna option. Mount the C1, a 10 PF capacitor if the external antenna is
the GBS 535-MD-01B/GBS 535-MD-01BP uses the U.FL connector for the external
antenna. The co-layout capacitors, C1, C3 as shown in figure 9.1, are designed to
satisfy the antenna option. Mount the C1, a 10 PF capacitor if the external antenna is
used.
Figure 9.1 Co-layout diagram of C1 and C3
The antenna optional and the corresponding capacitor is listed in Table 9.1.
Table 9.1 Part number of the GBS 535-MD-01A series
Type of Antenna
Type of Antenna
Capacitor
GBS 535-MD-01A
GBS 535-MD-01AP
Printed antenna
C3
GBS 535-MD-01B
GBS 535-MD-01BP
U. FL. connector
C1, 10PF, 0402 type
GBS 535
SiP Module
C3
C1