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Millimetre-Wave Down Converter Assembly (MDA)

All required high frequency local oscillator tones are generated internally from an external 1 GHz (100 MHz option) reference signal. Frequency multipliers for LO tone generation means the phase noise tracks that of the external reference.

Features:

  • 18-40 GHz coverage in two bands
  • Modular construction with high level of integration in each sub-assembly
  • Amplifiers, downconverter, switched filters, LO sub-system and BITE in a single, compact package
  • State-of-the-art technology

Applications:

  • Electronic warfare (EW) receivers
  • Block downconverters

Spec Sheet and Certificates

  • Millimetre-Wave Down Converter Assembly (MDA) Spec Sheet
  • SAS Micreo ISO9001 Certificate 2020-2023
  • SAS Micreo AS9100D Certificate 2020-2023

Millimetre-Wave Down Converter Assembly (MDA) Specifications

Technical Specifications
Input Frequency Range
Sub-bands:
Band A:

Input
Output
Band B:
Input
Output
18-40 GHz
 
 
18-26 GHz
7-15 GHz
 
26-40 GHz
4-18 GHz
Out-of-band Rejection 50 dBc
Transmission Gain (J1 to J2) 27.75 ±3.75 dB
In-band Ripple ±2 dB
Input P1 dB:
18-21 GHz
21-26 GHz
26-30 GHz
30-37 GHz
37-40 GHz
 
-19 dBm
-18 dBm
-21.5 dBm
-20 dBm
-18.5 dBm
Noise Figure:
18-21 GHz
21-24 GHz
24-26 GHz
26-30 GHz
30-35 GHz
35-40 GHz
 
6.5 dB
6.6 dB
7.4 dB
7.6 dB
9.0 dB
9.8 dB
Reference Input Frequency 100 MHz or 1 GHz (define)
Reference Power 0 to +6 dBm, 100 MHz version
-17 to 11 dBm, 1 GHz version
BITE Path Gain (J4 to J2) 2-16 dB
Internal BITE Output Freq 11 GHz
Power Supply: +12 V ±5%
+8 V ±5%
+5 V ±5%
-12 V ±5%
780 mA
2000 mA
850 mA
300 mA
Control Signals TTL levels
Digital Attenuator Control 4 bit, 15 dB maximum range
Operating & Storage Temp -54°C to +85°C base plate
Humidity 95% condensing
Vibration 17.5 g RMS 10-2000 Hz random
Shock 30 g, 11 milliseconds, half-sine pulse
Weight 1 kg maximum

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