Specifications

Table Of Contents
Cinterion
®
ELS81-US Hardware Interface Description
2.2 RF Antenna Interface
53
els81-us_hid_v01.004 2017-09-27
Confidential / Preliminary
Page 48 of 107
Micro-Stripline on 1.5mm Standard FR4 2-Layer PCB
The following two figures show examples with different values for D1 (ground strip separa-
tion).
Figure 24: Micro-Stripline on 1.5mm Standard FR4 PCB - example 1
Antenna line
Ground line
Ground line
Application board