Your contact partner for this product is: Michael Hirschmueller ǀ +49 9078 9695-95 ǀ mh@novotronik.com
This unit is used for the computer controlled switching of 3 RF signals in the frequency range DC … 12.4 GHz (200 W) and 1 RF signal in the frequency range DC … 6 GHz (500W) for use in EMC testing applications.

Design

The switching unit is housed in a 3 U 19" subrack with very good RF shielding and consists of the following sub-assemblies:

-    relays SPDT
-   
I/O boards
-    processor board
-    IEEE488 interface
-    manual control module

The signal connections of switch 1 .. 3 and the interface, power supply and earthing connections are provided at the back.
The mains switch and the signal connection of switch 4 is located on the front panel.

Control

The unit is controlled via an IEEE488 interface and via a manual control module with a LC display and pushbutons which is integrated in the front panel.

 

Special features

The I/O boards are monitored in a processor routine.
A status string can also be requested at any time via the control interface.
The unit is constructed using a modular approach utilising 19” plug-in sub-assemblies which enable ease of installation and maintenance.

Technical datameasured at 25 °C
Configuration:3 switches SPDT, 200 W (switch 1 … 3)
1 switch SPDT, 500 W (switch 4)
Switching specifications
Impedance (Ohm):50
Frequency range (GHz):
Switch 1 … 3
DC … 7
DC … 12.4
Switch 4
DC … 4
DC … 6
Insertion loss (dB):
Switch 1 … 3
0.2 max.
0.6 max.
Switch 4
0.2 max.
0.5 max.
VSWR:
Switch 1 … 3
1.25 : 1 max.
1.6 : 1 max.
Switch 4
1.25 : 1 max.
1.5 : 1 max.
Isolation (dB):
Switch 1 … 3
60 min.
55 min.
Switch 4
60 min.
60 min.
Input power (W):
Switch 1 … 3200 CW min.
Switch 4500 CW min.
Switching elements:failsafe relays
Switching time (ms):20 max.
Switching cycles:1 million min.
Further specifications
Control:IEEE488
Manual control:LCD (4x20) and pushbuttons (3x6)
RF connectors:N female, 50 Ohm
Power supply:195 … 264 VAC, 47 … 63 Hz
Connector3-pin, with mains filter and fuses
Mains switch:with integrated lamp
Temperature range:
Operating0 … 50 °C
EMC:in accordance with European standard EN 55022 and EN 50082-1/2
Dimensions:
Height3 RU
Width19“
Depthabout 300 mm (without connectors)
Front panel:painted light grey (RAL 7032)