Reference Design; Antenna Installation; Antenna Requirement; Install The Antenna With Rf Connector - Quectel UC15 Hardware Design

4.1.3. Reference Design

The RF interface has an impedance of 50Ω.The reference design of RF antenna is shown as below. It
should reserve a π-type matching circuit for better RF performance. The capacitors are not mounted by
default.

4.2. Antenna Installation

4.2.1. Antenna Requirement

The following table shows the requirements on GSM/UMTS antenna.
Table 28: Antenna Requirements
Type
GSM850/EGSM900
UMTS850/900
DCS1800/PCS1900
UMTS1900/2100

4.2.2. Install the Antenna with RF Connector

The following is the antenna installation with RF connector provided by HIROSE. The recommended RF
connector is UF.L-R-SMT.
UC15_Hardware_Design
Figure 38: Reference Circuit of Antenna Interface
Requirements
Cable insertion loss < 0.5dB.
Cable insertion loss < 0.9dB.
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