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 46 of 107
Micro-Stripline
This section gives two line arrangement examples for micro-stripline.
Micro-Stripline on 1.0mm Standard FR4 2-Layer PCB
The following two figures show examples with different values for D1 (ground strip separa-
tion).
Figure 22: Micro-Stripline on 1.0mm standard FR4 2-layer PCB - example 1
Antenna line
Ground line
Ground line
Application board