User's Manual

80-JA863-1 Rev. A 17 QUALCOMM Confidential and Proprietary
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
FENWAY Global User Guide for UMTS/GSM RF Integration
 If Rx diversity and GPS position location are not supported, leave the unused
secondary antenna unconnected.
 RF Feed points. The primary and secondary, GPS, Bluetooth and WLAN antenna
feed point locations are identified in Figure 2-1. These can be used to integrate
antenna elements directly to the FENWAY module without coaxial cables which may
result in a smaller overall system solution.
4.3 Ground connections
Grounding is extremely important to FENWAY performance. The main system ground
connections are mechanical, implemented by the ground clips identified in Figure 2-1.
Use these ground clips to ensure proper grounding. If system level design does not allow
use of these grounds, extensive performance testing must be completed to show they are
not necessary. In addition to these primary ground connections, the card’s 120-pin
connector provides additional electrical ground connections as listed in Table 2-1, and the
RF connectors provide the RF return paths that are also connected to system ground.
4.4 Shielding and interference
Shielding is an extension of the system ground and must be installed to prevent
interference between the host computer and the FENWAY platform. The platform is fully
shielded (Figure 4-1) in accordance with FCC regulations (see [1] listed in Table 1-2).
Figure 4-1 FENWAY shields
NOTE These FENWAY shields must not be removed.