Rf Connector - SimCom SIM900B Hardware Design

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RF connector

The RF connector in the module side is an ultra small surface mount coaxial connectors (Part Number:
U.FL-R-SMT, vended by HRS). It has high performance with wide frequency range, surface mountable and
reflows solderable. Following are parameters (Figure 36). Certainly user can visit
http://www.hirose-connectors.com/ for more information.
To get good RF performance in user's design, SIMCom suggests user to use the matching RF adapter cable
which is also supplied by HRS (Part Number: U.FL-LP（V）-040), the following figure (Figure 41) is the
dimensions of U.FL series RF adapter cable. User can contact SIMCom for more information.
Unit:mm
Figure 36: U.FL-R-SMT
Unit:mm
43
SIM900B_Hardware Design_V2.01 2012-05-07