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AS9100 Rev C, ISO 9001:2008,
ISO 14001:2004 and OHSAS 18001:2007

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Biasable Mixers - MB1

Features:

  • DC biasable
  • 3 dBm local oscillator drive level
  • Broadband LO and RF
  • IF bandwidths up to 18 GHz

Applications:

  • Receiver subsystems
  • Broadband downconverters
  • Test equipment
  • EW/ELINT

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Download the MB1 specsheet (.pdf)

Description

Millitech series MB1 mixers are DC biased to operate with low local oscillator power levels on the order of +3 dBm. These are balanced mixers with low conversion loss over broad RF and LO bandwidths and an IF range which extends up to 18 GHz.

Series MB1 mixers are offered in three waveguide bands from 60 to 140 GHz with full waveguide band RF signal coverage. For narrow IF range (up to 2 GHz), the local oscillator frequency can be anywhere within the band. This broadband capability makes these mixers ideally suited for EW receivers, instrumentation and swept receiver applications, particularly where local oscillator power is at a premium and available only at approximately the 3 dBm level.

External low noise IF preamplifiers can be provided with these mixers for specific IF ranges. The standard product uses the same waveguide band for both LO and RF ports. MXP balanced mixers with integral filters are offered for higher performance applications where reasonable LO power levels (+10 to +15 dBm) are available.

Typical Performance

Series MB1 Performance Charts

Electrical Specifications

Model Number MB1-12 MB1-10 MB1-08
Frequency Band and Range (GHz) E
60-90
W
75-110
F
90-140
Conversion Loss (dB) (max)*1
(without IF preamplifier)
0.1-10 GHz IF 9.0 11.0 13.0
Noise Figure (dB) (DSB max)*1
(with IF preamplifier)
100-500 MHz IF 9.0 10.0 12.0
100-1000 MHz IF 9.5 10.5 12.5
1-2 GHz IF 10.0 11.0 13.0
2-4 GHz IF 10.0 11.0 13.0
1-12 GHz IF 11.0 12.0 14.0
1-18 GHz IF 11.0 12.0 14.0
RF Frequency Full waveguide
RF Bandwidth Full waveguide
RF Input Return Loss (typ) 6 dB 6 dB 5 dB
LO Frequency Full waveguide
LO Bandwidth (GHz) (min) IF up to 2 GHz Full waveguide
IF up to 5 GHz 10% of LO center frequency
LO Drive Power (biased) (dBm)*2 3 3 3
LO to IF Isolation (dB) (typ) 20 20 20
LO to RF Isolation (dB) (typ) 20 20 20
RF to IF Gain (dB) (with IF preamplifier) (min) 20 20 20
IF Preamp Noise Figure (dB) (typ) 1.5 1.5 1.5
RF and LO Combined Input Power (dBm) (max) 17 17 17
IF Output Impendence (ohm) (nom) 50 50 50
DC Input Voltage (V) (IF amp) (typ) 12 to 15 12 to 15 12 to 15
DC Input Current (mA) (IF amp) (typ) 200 200 200
DC Bias Voltage (V) (LO) (typ) 15 15 15
Operating Temperature (°C) (specs apply at 25°C) 0 to 50 0 to 50 0 to 50

*1 - Tested with +3 dBm LO drive. Tested at a fixed LO frequency.
*2 - An isolator is recommended at local oscillator input for optimum performance.

Mechanical Specifications

Model Number MB1-12 MB1-10 MB1-08
Flange MIL-DTL-3922 /67B-009 /67B-010 Flange Pattern Compatible with
MIL-DTL-3922/67C. Refer to IS000131.

Outline Drawings

Series MB1

Series MB1 Outline Drawings

How to Order

Specify Model Number
MB1-XX-ABCDE
XX = Waveguide Band
  • WR – number
A = Flange Type
  • R – round
B = Local Oscillator Waveguide Band
  • R – same as RF band
C = IF Range
  • 0 – 100-500 MHz
  • 1 – 100-1000 MHz
  • 2 – 1-2 GHz
  • 3 – 2-4 GHz
  • 4 – 1-12 GHz
  • 5 – 1-18 GHz
  • R – other range (please specify)
D = IF Amplifier Options
  • A – IF amplifier included
  • W – without IF amplifier
E = LO Range
  • F – fullband (IF limited to 2 GHz)
  • S – specified range*
  • X – fixed frequency*
*Please specify IF, LO and RF frequency

Example:

To Order: a fullband biasable mixer in WR-10 with a 100 to 1000 MHz IF without an amplifier

Specify: MB1-10-RR1WF