Description
This X-Band waveguide limiter provides excellent protection from
unwanted signals. It features STC and Blanking capabilities plus an
integrated noise source for additional system flexibility.
MALI-007212-000000
X-Band Waveguide Limiter
with STC, Blanking and Integrated Noise Source
2011 Datasheet v1
The most important thing we build is trust
Features
• High Reliability
• High power handling
• Low insertion loss
• Sensitivity Time Control (STC)
• Blanking feature
• Integrated Noise Source
• European Manufacture.
Graphical Representation
www.cobham.com/miltonkeynes
MALI-007212-000000
X-Band Waveguide Limiter
with STC, Blanking and Integrated Noise Source
2011 Datasheet v1
Parameter Value Units
Min. typ. Max.
Frequency Band 9.0 9.6 GHz
Insertion Loss (Input power <= -10 dBm) 0.5 1.0 dB
Input / Output Return Loss (Input power <= -10 dBm) <1.29:1 1.38:1 Ratio
Normal Operating
Peak Power 500 W
Mean Power 15 W
Pulse width 40 μs
Duty cycle 25:1 Ratio
Fault condition, Peak power (40 μs Pulse Max., 25:1 duty cycle min.) 5000 W
Fault Duration 10 ms
Flat Leakage 50 mW
Spike Leakage (RF rise time >= 15ns) <250 500 mW
Recovery time, Normal Operating (To within 3dB of Insertion Loss) 650 - 750 1000 ns
Blanking Isolation 60 dB
STC Control (Input impedance approx. 3kΩ) 0 5 V
STC Response (monotonic) 0 45 dB
Supply current, +15V Rail 30 100 mA
Supply Current, -15V Rail 45 100 mA
Noise Source Supply (-15V ±1V applied Pin 3, 9 Way MDM) 13 17 mA
Noise Source ENR (Blanking Active) 12 ±1.5 dB
(Applies over the frequency range, output and input characteristic impedance of stated waveguide. Unless otherwise stated limits
& conditions are indicated values.)
RF Performance
Pin Function
1 +15V Supply
2Blanking
3 Noise Source
5 -15V Supply
6 +15V Return (GND)
8 STC
9 -15V Return (GND)
4, 7 Not Used
Environmental
Operating Temperature -40°C to +85°C
Storage Temperature -55°C to +90°C
RF Connections
Input / Output WG16
Pressure window fitted to front flange, 1.5 bar (gauge) Max.
Pin-out - 9 Way MDM Plug
Noise Source
Apply bias to 9 way MDM, Pin 3
Noise Source OFF : 0V Bias, Pin 3
Noise Source ON : -15V ± 1V Bias, Pin 3
Blanking Input
Single ended TTL
‘0’ = Insertion Loss
‘1’ = Blanking
STC Response
Mechanical Outline
For further information please contact:
Cobham MAL Ltd.
Featherstone Road
Wolverton Mill
Milton Keynes, MK12 5EW
England
Tel: +44 (0) 1908 574200
Fax: +44 (0) 1908 574300
E-mail - cobham.mal@cobham.com
www.cobham.com/miltonkeynes
Cobham MAL Ltd
© Cobham plc, 2011. Whilst every effort is made to ensure the accuracy of the information contained in this brochure, no responsibility
can be accepted for any errors and/or omissions. Descriptions and specifications of products are subject to change without notice.
