User's Guide

RN2903
DS00000A-page 10 Advance Information  2015 Microchip Technology Inc.
5.0 APPLICATION INFORMATION
5.1 RF pins and strip line
The RF signals must be routed with properly terminated 50 Ohm strip lines. Use curves instead of sharp corners. Keep
the routing path as short as possible. Figure 5.3 shows a routing example.
FIGURE 5-1: RF ROUTING (EXAMPLE)
5.2 Approved Antennas
Modular certification of the RN2903 module was per-
formed with the external antenna type mentioned in
Table 5-1. Refer to Section 6.0 "Regulatory
Approval" for specific regulatory requirements by
country.
TABLE 5-1: TESTED EXTERNAL
ANTENNA TYPES
Type Gain (dBi)
Dipole 6
Chip Antenna -1