RK3288 Hardware Design Guide
Fig 23-12
Impedance should be considered in the design of the width of antenna and microstrip,
the impedance requirement is Z=50±10ohm. Under the traces, a complete reference
plane is needed to serve as a reference GND to RF signal.
The longer 3G trace is, the greater energy lose. Therefore the length of antenna is as
shorter as possible in the design of RF antenna, meanwhile branches and vias are not
allowed, as shown in Fig23-13, and Fig23-14 show the wrong methods of routing.
If the 3G trace needs to turn, arc trace is used instead of corner trace, as shown in Fig
23-15, and Fig 23-14 shows the wrong methods of routing.
Summary of Contents for RK32 Series
Page 1: ...RK3288 Hardware Design Guide RK3288 Hardware Design Guide Revision 1 2 Jun 18 2014...
Page 2: ...RK3288 Hardware Design Guide Revision History Date Revision Description 2014 12 15 1 2...
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