Device Overview

General Description

The MM1-1850H is a passive double balanced MMIC mixer. It features excellent conversion loss, superior isolations and spurious performance across a broad bandwidth, in a highly miniaturized form factor. Accurate, nonlinear simulation models are available for Microwave Office® through the Marki Microwave PDK. The MM1-1850H is available as a wire bondable chip or in a connectorized package. The MM1-1850H is a superior alternative to Marki Microwave carrier and packaged M9 mixers.

Photo of MM1-1850HS

Features

  • CAD Optimized for Superior Isolation and Spurious Response
  • Broadband Performance
  • Excellent Unit-to-Unit Repeatability
  • Fully nonlinear software models available with Marki PDK for Microwave Office®
  • RoHS Compliant

Applications

  • Test and Measurement Equipment
  • Fixed RF up converters
  • Electronic warfare equipment

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageConnectorsGreen StatusProduct LifecycleExport Classification
MM1-1850HSGaAs DOUBLE-BALANCED MIXERSStandard

REACH

RoHS

ReleasedEAR99

Table Of Contents

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Port Configuration and Functions

Port Diagram

Diagram of the port configuration for MM1-1850HS

Port Functions

Configuration A

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
Port 1RF 1.85FPort 1 is DC open and AC matched to 50 Ohms from 18 to 50 GHz. Blocking capacitor is optional.Equivalent circuit for the RF
Port 2LO 1.85FPort 2 is DC open and AC matched to 50 Ohms from 18 to 50 GHz. Blocking capacitor is optional.Equivalent circuit for the LO
Port 3IF SMAFPort 3 is DC coupled to the diodes. Blocking capacitor is optional.Equivalent circuit for the IF

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Configuration B

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
Port 1LO 1.85FPort 1 is DC open and AC matched to 50 Ohms from 18 to 50 GHz. Blocking capacitor is optional.Equivalent circuit for the LO
Port 2RF 1.85FPort 2 is DC open and AC matched to 50 Ohms from 18 to 50 GHz. Blocking capacitor is optional.Equivalent circuit for the RF
Port 3IF SMAFPort 3 is DC coupled to the diodes. Blocking capacitor is optional.Equivalent circuit for the IF

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Specifications

Absolute Maximum Ratings

ParameterMaximum RatingUnit
Port 1 DC Current 21mA
Port 2 DC Current 21mA
Port 3 DC Current 22.8mA

Package Information

ParameterDetailsRating
Dimensions-14.22 x 13.21mm
ParameterMinNominalMaxUnit
LO Input Power 12-20-

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Electrical Specifications

Specifications guaranteed from -55 to +100°C, measured in a 50Ω system. All bare die are 100% DC tested and 100% visual inspected. RF testing is performed on a sample basis to verify conformance to datasheet guaranteed specifications. Consult factory for more information.

ParameterPort ConfigurationTest ConditionsMinTypMaxUnit
Conversion Loss ALO/RF=18-50GHz
IF=DC-20GHz
-8-dB
Input IP3 ALO/RF=18-50GHz
IF=DC-20GHz
LO drive level=13-20dBm
-21-dBm
Input P1dB ALO/RF=18-50GHz
IF=DC-20GHz
LO drive level=13-20dBm
-9-dBm
LO-IF Isolation A--35-dB
LO-RF Isolation A--43-dB
RF-IF Isolation A--35-dB
Conversion Loss BLO/RF=18-50GHz
IF=DC-20GHz
-8.5-dB
Input IP3 B LO/RF=18-50GHz
IF=DC-20GHz
LO drive level=12-17dBm
-19-dBm
Input P1dB BLO/RF=18-50GHz
IF=DC-20GHz
LO drive level=12-17dBm
-9-dBm
IF Frequency Range --0-20GHz
LO Frequency Range --18-50GHz
RF Frequency Range --18-50GHz

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Typical Performance

MM1-1850 graph for MM1-1850HS
Tuner Conversion Loss (dB) graph for MM1-1850HS
Input Tuner IP3: 24 GHz RF Output (dBm) graph for MM1-1850HS
Output Tuner IP3: 24 GHz RF Output (dBm) graph for MM1-1850HS
Conversion Loss: 100 MHz IF (dB) graph for MM1-1850HS
LO to RF Isolation (dB) graph for MM1-1850HS
Relative IF Response (dB) graph for MM1-1850HS
Relative IF Response (dB) graph for MM1-1850HS

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Configuration A Conversion Loss vs. LO Power: 100 MHz IF (dB) graph for MM1-1850HS
Configuration B Conversion Loss vs. LO Power: 100 MHz IF (dB) graph for MM1-1850HS
Input IP3: 100 MHz IF (dBm) graph for MM1-1850HS
Output IP3: 100 MHz IF (dBm) graph for MM1-1850HS
LO to IF Isolation (dB) graph for MM1-1850HS
RF to IF Isolation (dB) graph for MM1-1850HS
RF Return Loss (dB) graph for MM1-1850HS
LO Return Loss (dB) graph for MM1-1850HS

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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IF Return Loss (dB) graph for MM1-1850HS
IF Return Loss (dB) graph for MM1-1850HS
Even LO Harmonic to RF Isolation (dB) graph for MM1-1850HS
Even LO Harmonic to IF Isolation (dB) graph for MM1-1850HS
2RF x 2LO Spurious Suppression (dBc) graph for MM1-1850HS
2IF x 1LO Spurious Suppression (dBc) graph for MM1-1850HS
2IF x 0LO Spurious Suppression (dBc) -10 IF Input graph for MM1-1850HS
3IF x 0LO Spurious Suppression (dBc) -10 IF Input graph for MM1-1850HS

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Mechanical Data

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