User Instructions

Stollmann

E + V GmbH

BlueRS+I

DesignGuide

Author: cl Date of Savin

: 19.03.04 Ref: Revision: 1.2 Pa

e 17 of 22

6 Mounting instructions

6.1 Antenna Issues

BlueRS+I may be delivered in two antenna designs:

• BlueRS+I comprises an ceramic antenna which as a component is soldered to

the circuit board. This is functional for a BlueRS+I integrated into a plastic

housing. No additional antenna is required.

• For an external antenna to be set in, e.g. because the BlueRS+I is integrated

into a metal housing, the ceramic antenna is replaced by a mini-SMA connector

(50 Ohm technology) . An external antenna can either directly be connected with

this SMA or indirectly by an antenna cable.

The mini Murata SMD socket for the external antenna may be soldered on the

socket pads. The matching network components connecting the internal antenna

has to be removed.

The influence of the internal antenna resp. the external antenna is in any case to be

checked within the final integration environment. Adjacent PCBs, components,

cable, housings etc. could otherwise influence the radiation pattern.

Zeevo

Socket Pads

Coupling

component

Zeevo

Internal Antenna

Socket for

external antenna

Internal Antenna External Antenna