MCDI - Mini-Circuits Exclusive Representative in Israel

RF Power Splitters / Dividers / Combiners

Mini-Circuits RF Power Splitters & Combiners from DC to 67 GHz with Local Engineering Support in Israel

MCDI offers a broad selection of Mini-Circuits RF, microwave and millimeter-wave power splitters, power dividers and power combiners for signal distribution, signal combining, RF test systems, communications, radar and high-power applications.

The standard Mini-Circuits catalog includes 2-way, 3-way, 4-way, 5-way, 6-way, 8-way, 10-way, 12-way, 16-way and up to 24-way configurations, with selected special and non-catalog higher-port-count solutions also available.

Products are available for both 50 Ī© and 75 Ī© systems, with:

  • Surface-mount
  • Connectorized
  • Plug-in
  • MMIC die

configurations.

Mini-Circuits splitter / combiner solutions cover frequencies from DC to 67 GHz, with connector interfaces including SMA, N-Type, BNC, F-Type, 2.92 mm, 2.4 mm, 1.85 mm and selected high-power 7/16 DIN configurations.

Available architectures include:

  • Core & Wire
  • LTCC
  • MMIC
  • Microstrip
  • Stripline
  • Resistive
  • High-power non-isolating combiners

MCDI’s Application Engineering team in Israel can assist you in selecting the appropriate splitter or combiner according to frequency range, number of ways, isolation, insertion loss, amplitude balance, phase balance, RF power, impedance, DC-pass requirements and mechanical interface.

Local RF Engineers

Hebrew & English Professional Support

Fast Quotations

Get a quote within hours or less

Flexible Logistics

DDP & Ex-Works - your choice

Custom Solutions

Custom Adapters & Catalog modifications

Non-Catalog parts

Access to Mini-Circuits full portfolio

Quality You Can Trust

Mini-Circuits Quality & Reliability

RF Power Splitters / Combiners CATALOG

Use the RF Power Splitter / Combiner Catalog below to search and compare Mini-Circuits models according to your application requirements.

Search and filter according to:

  • Part number
  • Number of ways
  • Interface
  • Impedance
  • Minimum frequency
  • Maximum frequency
  • Typical isolation
  • Typical excess insertion loss
  • Typical phase unbalance
  • Typical amplitude unbalance
  • Maximum splitter input power
  • DC pass-through
  • Technology

For combiner applications, always review the individual product datasheet for:

  • Maximum combiner power
  • Maximum power per input port
  • Coherent / non-coherent operating conditions
  • Internal dissipation limits

Do not infer combiner power capability from splitter power rating alone.

An RF power splitter, also called a power divider, accepts one RF input signal and divides it between multiple output ports.

A conventional equal-amplitude 0° splitter ideally produces outputs with:

  • Equal amplitude
  • Equal phase
  • Defined impedance
  • Isolation between output ports

For example:

1 input → 2 equal outputs

or:

1 input → 4 equal outputs

Power splitters are widely used in:

  • RF test systems
  • Signal distribution
  • Multi-channel receivers
  • Phased arrays
  • Radar
  • Communications systems
  • Instrumentation
  • Amplifier systems
  • Antenna systems

A passive reciprocal splitter can normally also be used in the opposite direction as a power combiner.

Instead of:

1 input → multiple outputs

the device is used as:

multiple inputs → 1 combined output

However, combiner performance depends strongly on the signals being combined.

Their:

  • Frequency
  • Amplitude
  • Phase
  • Coherence

all affect the amount of power that reaches the common output and the amount dissipated internally.

This distinction is especially important in high-power systems.

In this product category:

Power Splitter and Power Divider generally describe the same function.

One input signal is divided among several outputs.

Power Combiner describes reciprocal operation in the opposite direction.

Multiple RF signals are applied to the branch ports and combined at the common or SUM port.

A product may therefore be described as:

Power Splitter / Combiner

because the same passive network can perform both functions.

When RF power is divided equally among multiple outputs, each output necessarily receives only a fraction of the original power.

Even an ideal lossless splitter therefore has a theoretical splitting loss.

The theoretical loss for an N-way equal splitter is:

10 Ɨ log10(N) dB

Examples:

2-Way Splitter

Theoretical loss:

3.01 dB

Each output receives approximately half of the input power.

3-Way Splitter

Theoretical loss:

4.77 dB

4-Way Splitter

Theoretical loss:

6.02 dB

8-Way Splitter

Theoretical loss:

9.03 dB

16-Way Splitter

Theoretical loss:

12.04 dB

This theoretical loss is not considered a defect in the splitter.

It is the unavoidable result of dividing the available RF power among multiple ports.

Mini-Circuits commonly specifies splitter insertion loss as:

Insertion Loss Above Theoretical

This is the additional practical loss introduced by:

  • Conductors
  • Dielectrics
  • Transformers
  • Transmission structures
  • Connectors
  • Internal resistive elements

For example, a 2-way splitter may have:

3.01 dB theoretical split loss

plus:

0.5 dB excess insertion loss

for a total path loss of approximately:

3.5 dB

under the specified conditions.

This distinction should always be considered when calculating an RF link budget.

2-Way Power Splitters

A 2-way splitter divides one RF input into two output signals.

This is the most common splitter configuration and is used in:

  • Test systems
  • Receiver distribution
  • LO distribution
  • Antenna systems
  • Signal monitoring
  • RF measurement

Mini-Circuits offers 2-way products from very low frequencies through 67 GHz.

3-Way Power Splitters

A 3-way splitter provides three nominally equal outputs.

Applications include:

  • Multi-channel test setups
  • Distribution networks
  • Three-channel receiver systems
  • Instrumentation

Current Mini-Circuits mmWave 3-way products include solutions from 18 to 67 GHz with 1.85 mm connectors.

4-Way Power Splitters

A 4-way splitter divides an RF input into four equal-amplitude outputs.

The ideal theoretical splitting loss is approximately:

6 dB per output

before excess insertion loss.

Applications include:

  • Multi-channel signal distribution
  • Phased arrays
  • Test equipment
  • Receiver systems
  • LO distribution

Mini-Circuits offers both low-frequency and mmWave 4-way models.

6-Way, 8-Way & Higher-Port-Count Splitters

Higher-port-count splitters simplify distribution of one RF signal to many parallel channels.

Mini-Circuits standard products include configurations such as:

  • 6-way
  • 8-way
  • 10-way
  • 12-way
  • 16-way
  • 24-way

Selected special or non-catalog models are also available with higher port counts.

These products are useful in:

  • Large test systems
  • Signal-distribution racks
  • Multi-channel receivers
  • Production test
  • Antenna systems
  • Calibration systems

Mini-Circuits also maintains selected 48-way power splitter / combiner designs outside the standard catalog.

Examples include 50 Ī© and 75 Ī© configurations covering selected low-frequency applications.

These products are typically identified as:

Non-Catalog / Available on Request

If your application requires more than 24 outputs, contact MCDI to check current availability and custom options.

Surface-mount splitters are designed for PCB-level integration.

Mini-Circuits offers SMT splitters using technologies including:

  • Core & Wire
  • LTCC
  • MMIC
  • Microstrip
  • Resistive
  • Stripline

Surface-mount models are useful for:

  • Wireless systems
  • RF modules
  • Communications equipment
  • Test electronics
  • Radar
  • Embedded RF systems

Current SMT solutions include ultra-wideband MMIC products through 43.5 GHz.

Coaxial splitter / combiners are convenient for:

  • Laboratories
  • Complete RF systems
  • Test equipment
  • High-power systems
  • Radar
  • Signal-distribution networks

Connector options across the portfolio include:

  • SMA
  • N-Type
  • BNC
  • F-Type
  • 2.92 mm
  • 2.4 mm
  • 1.85 mm
  • 7/16 DIN

depending on model and operating frequency.

Mini-Circuits offers connectorized splitter / combiners for mmWave applications through 67 GHz.

Current 1.85 mm families include:

  • 2-way
  • 3-way
  • 4-way
  • 8-way

models covering 18 to 67 GHz.

These products are useful for:

  • 5G / advanced wireless
  • Radar
  • Semiconductor test
  • mmWave instrumentation
  • Aerospace and defense
  • Research
  • Signal distribution

At these frequencies, connector quality, cable loss and torque control become important parts of overall system performance.

Mini-Circuits offers high-power splitter and combiner solutions for applications such as:

  • RF power amplifiers
  • Plasma generators
  • Industrial RF heating
  • Radar
  • High-power test systems
  • Communications transmitters

Power ratings vary greatly by architecture.

Selected conventional isolated splitter / combiners are available with power handling in the tens or hundreds of watts.

Special non-isolating high-power combiners can operate at significantly higher levels.

For example, selected Mini-Circuits high-power S-band combiners support power levels up to 1.2 kW and above, depending on configuration.

Always use the individual datasheet when RF power is a critical requirement.

Some very-high-power combining applications use non-isolating combiner architectures.

Unlike conventional isolated splitter / combiners, these products do not use internal isolation resistors between the combining paths.

This can significantly increase:

  • Power capability
  • Combining efficiency

but requires the signals being combined to be carefully controlled.

Typical requirements include:

  • Coherent signals
  • Closely matched amplitude
  • Closely matched phase
  • Correct output load impedance

Non-isolating combiners are especially useful in high-power amplifier systems.

This is one of the most important considerations when using a splitter as a combiner.

Coherent Signals

Signals are coherent when they maintain a defined:

  • Frequency
  • Phase
  • Amplitude relationship

For example, two equal-amplitude signals at the same frequency and exactly in phase can combine constructively.

In an ideal 2-way 0° combiner, equal in-phase signals can theoretically combine without the 3 dB combining loss that applies to unrelated signals.

Non-Coherent Signals

Signals at:

  • Different frequencies
  • Random relative phase
  • Uncontrolled phase

are non-coherent.

When a conventional isolated splitter is used to combine non-coherent signals, part of the RF power may be dissipated in the internal isolation resistor.

Combiner power capability can therefore be significantly lower than the device’s splitter input-power rating.

Opposite-Phase Signals

Two equal-amplitude signals that are exactly 180° out of phase can cancel at the combiner output.

In this case, the power must be dissipated elsewhere within the network.

This can exceed the rating of internal isolation resistors.

Never use the splitter power rating as the combiner rating without checking the datasheet and signal conditions.

These specifications should be treated separately.

As a Splitter

The common port receives the input RF power and distributes it among the output ports.

The splitter rating usually assumes:

  • All outputs correctly terminated
  • Specified VSWR
  • Specified temperature
  • Normal operating conditions

As a Combiner

Power is applied to multiple branch ports.

The permissible power may depend strongly on:

  • Coherence
  • Phase
  • Amplitude
  • Number of active inputs
  • Internal isolation-resistor dissipation

Some products provide an explicit:

Maximum Power as Combiner

or:

Maximum Input per Port when Combining Non-Coherent Signals

Always follow that specification.

Isolation describes how strongly one output port is isolated from another.

Higher isolation reduces unwanted interaction between branches.

Good isolation can be important when outputs feed:

  • Amplifiers
  • Mixers
  • Antennas
  • Receivers
  • Test devices

If one branch presents a changing load, strong isolation helps reduce its effect on the other branches.

Ideally, an equal splitter produces exactly the same output amplitude at every output port.

Real devices show a small variation.

Amplitude unbalance specifies the difference in output amplitude between ports.

Lower amplitude unbalance is especially important in:

  • Phased arrays
  • I/Q architectures
  • Coherent systems
  • Calibration
  • Multi-channel measurements

A conventional 0° power splitter ideally produces outputs with the same phase.

Phase unbalance describes the deviation between output phases.

Low phase unbalance is important for:

  • Coherent signal distribution
  • Phased arrays
  • LO distribution
  • Signal combining
  • Multi-channel calibration

For precise phase-sensitive systems, also consider phase variation introduced by cables and adapters.

Good input and output matching helps minimize reflections.

Review:

  • Common-port VSWR
  • Output-port VSWR

throughout the intended operating band.

Output loading can also affect isolation and combiner behavior.

Selected Mini-Circuits splitter / combiners allow DC current to pass through the RF path.

This can be useful in:

  • Active antenna systems
  • Remote amplifiers
  • Bias-over-coax applications
  • Distributed RF systems

The permitted:

  • DC current
  • RF power
  • Voltage

must be verified in the individual datasheet.

Models without DC pass-through may provide DC blocking instead.

Most RF, wireless, radar and test systems use 50 Ī©.

Mini-Circuits also offers 75 Ī© splitters for applications including:

  • CATV
  • Broadband distribution
  • Video
  • Cable networks

Always select a splitter matching the system impedance.

A resistive splitter uses a broadband resistor network.

Advantages can include:

  • Extremely wide bandwidth
  • Operation down to DC
  • Simple architecture
  • Excellent broadband behavior

Tradeoffs include:

  • Higher loss
  • Lower isolation than many Wilkinson-type designs
  • Lower RF power capability

Resistive splitters are useful where ultra-wide bandwidth is more important than minimum loss.

Many equal-amplitude power splitters use an architecture related to the Wilkinson power divider concept.

These designs provide:

  • Equal outputs
  • 0° relative phase
  • Good output-port isolation
  • Good impedance matching
  • Low excess insertion loss

The internal isolation resistor absorbs power associated with imbalance or reflected energy between branches.

This provides excellent isolation but also affects combiner power handling.

LTCC – Low Temperature Co-Fired Ceramic splitters provide:

  • Compact size
  • Repeatable manufacturing
  • Rugged construction
  • Good RF performance

They are useful for high-volume surface-mount applications.

Mini-Circuits LTCC splitter families include models with RF power handling into the tens of watts.

MMIC power splitters provide highly repeatable semiconductor-based RF performance in very compact packages.

Benefits can include:

  • Ultra-wide bandwidth
  • Small size
  • Excellent amplitude balance
  • Excellent phase balance
  • High repeatability

Mini-Circuits MMIC splitters include packaged and bare-die solutions extending into microwave and mmWave frequencies.

Number of Ways

Determine the number of outputs or inputs required.

Common configurations include:

  • 2-way
  • 3-way
  • 4-way
  • 6-way
  • 8-way
  • 12-way
  • 16-way
  • 24-way

Avoid cascading unnecessary stages if a suitable higher-port-count device is available, but also evaluate total bandwidth, loss and power requirements.

Frequency Range

The splitter must provide required:

  • Isolation
  • Insertion loss
  • Amplitude balance
  • Phase balance
  • VSWR

over the entire operating band.

Mini-Circuits standard catalog products extend from DC to 67 GHz.

Insertion Loss

Consider both:

  • Theoretical splitting loss
  • Additional insertion loss above theoretical

when calculating total signal loss.

Isolation

Specify the minimum isolation required between output branches.

High isolation is especially important if the devices connected to the outputs can influence one another.

Amplitude Balance

Choose a product with sufficiently low amplitude unbalance for your system.

This is especially important for coherent and phase-sensitive applications.

Phase Balance

For phased arrays, LO networks and coherent processing, phase unbalance may be one of the most important selection criteria.

RF Power

Determine whether the product will be used primarily:

  • As a splitter
  • As a combiner
  • In both directions

If combining, also determine whether the signals are:

  • Coherent
  • Non-coherent
  • Same frequency
  • Different frequency
  • Phase controlled

before applying power ratings.

DC Pass

If DC power must share the RF path, choose a model specifically rated for DC pass-through.

Impedance

Choose 50 Ī© or 75 Ī© according to the complete RF system.

Mechanical Interface

Choose among:

  • Surface mount
  • Connectorized
  • Plug-in
  • MMIC die

according to system architecture.

RF Signal Distribution

Splitters distribute one RF signal to multiple receivers, instruments or system channels.

Local Oscillator Distribution

A stable LO source can be distributed to multiple mixers or receiver channels.

Low phase and amplitude unbalance are especially important in coherent systems.

RF Test & Measurement

Splitters and combiners are widely used in:

  • Automated test
  • Laboratory systems
  • Production test
  • Multi-channel measurements
  • Receiver testing
  • Calibration

Amplifier Power Combining

A combiner can combine the outputs of multiple RF amplifiers.

For efficient power combining, the amplifier outputs normally need carefully controlled:

  • Frequency
  • Amplitude
  • Phase

High-power systems may use dedicated non-isolating combiners.

Phased Arrays

Splitters distribute coherent RF signals among multiple array channels.

Important parameters include:

  • Phase balance
  • Amplitude balance
  • Isolation
  • Insertion loss

Radar

RF splitters and combiners are used in:

  • Signal distribution
  • LO networks
  • Receiver systems
  • Test systems
  • High-power amplifier networks

Wireless Communications

Applications include:

  • Base stations
  • Distributed RF networks
  • Multi-channel radios
  • Signal monitoring
  • Test systems

CATV & Broadband

75 Ī© splitter / combiners support:

  • CATV
  • Broadband distribution
  • Video
  • Cable networks

mmWave Test & Measurement

1.85 mm splitter / combiners through 67 GHz support:

  • Semiconductor testing
  • 5G / 6G research
  • Radar
  • mmWave instrumentation
  • Device characterization

A power splitter intentionally divides a significant portion of the input signal among multiple outputs.

A directional coupler normally samples only a defined fraction of the mainline signal.

For example:

Use a splitter when:

One signal must feed two equal channels.

Use a 20 dB directional coupler when:

Approximately 1% of the main signal needs to be sampled for monitoring.

The products on this page are primarily 0° equal-phase splitter / combiners.

A 90° hybrid provides outputs nominally separated by 90°.

A 180° hybrid provides outputs with a 180° phase relationship.

Hybrid couplers are useful in applications such as:

  • Balanced amplifiers
  • I/Q systems
  • Image-reject mixers
  • Push-pull amplifier structures
  • Phase-sensitive signal processing

Keep hybrid products in their dedicated category to avoid confusing them with standard 0° power splitters.

Applications requiring many splitter channels may benefit from an integrated RF signal-distribution system instead of individual discrete components.

MCDI and Mini-Circuits provide rack-mount and system-level solutions incorporating:

  • Multi-way splitters
  • Amplifiers
  • Switches
  • Attenuators
  • Couplers
  • RF monitoring
  • Custom connectors

MCDI can assist with both standard components and complete RF signal-distribution solutions.

What is an RF power splitter?

An RF power splitter is a passive device that divides one RF input among multiple output ports.

In this context, yes.

The terms power splitter and power divider are generally used interchangeably.

Many passive splitter / combiners are reciprocal and can be used in either direction.

However, combiner power handling depends on the signals being combined and must be checked separately.

An ideal 2-way equal splitter has approximately 3.01 dB theoretical power division loss per output.

Additional practical insertion loss is added to this value.

An ideal 4-way equal splitter has approximately 6.02 dB theoretical splitting loss per output.

It is the additional practical RF loss beyond the unavoidable theoretical splitting loss.

For example, a 2-way splitter with 0.5 dB excess insertion loss has approximately:

3.0 dB theoretical loss + 0.5 dB excess loss = 3.5 dB total path loss.

Isolation describes how strongly one output port is isolated from another.

Higher isolation reduces interaction between connected devices.

Amplitude unbalance is the difference in output power between nominally equal output ports.

Lower values indicate more equal output levels.

Phase unbalance is the phase difference between outputs relative to the ideal phase relationship.

For a 0° splitter, outputs should ideally have the same phase.

Phase balance is especially important in:

  • Phased arrays
  • LO distribution
  • Coherent systems
  • Power combining
  • Multi-channel measurements

A DC-pass splitter allows DC current to pass through one or more RF paths while also dividing the RF signal.

This can be useful for powering remote active equipment over RF coax.

A resistive splitter can provide extremely wide bandwidth, including DC operation, but generally has greater loss and lower isolation.

An isolated splitter such as a Wilkinson-type architecture provides much higher output isolation and lower excess loss over its designed frequency range.

Yes, but their output signals generally need to be closely controlled in frequency, phase and amplitude.

Combining mismatched or out-of-phase signals can result in internal power dissipation and reduced output.

In an ideal 0° combiner they can cancel at the output.

The associated power may then be dissipated inside the combiner, potentially exceeding internal component ratings.

Coherent signals maintain a controlled phase and frequency relationship.

Non-coherent signals do not.

Combiner loss and internal dissipation can differ significantly between these conditions.

No.

Never assume that the splitter rating applies when the product is used as a combiner.

Check the datasheet’s specific combiner rating and operating conditions.

The current standard Mini-Circuits power splitter / combiner catalog includes products from DC to 67 GHz.

Yes.

Mini-Circuits offers current 1.85 mm connectorized 2-way, 3-way, 4-way and 8-way splitter / combiner solutions covering 18 to 67 GHz.

The standard catalog includes products up to 24 ways.

Selected special or non-catalog designs are available with higher port counts, including 48-way configurations.

Yes.

Mini-Circuits offers selected 75 Ī© splitter / combiner products for CATV and broadband applications.

Yes.

Mini-Circuits offers high-power isolated and non-isolating splitter / combiner solutions, including special products operating at power levels into the kilowatt range.

A splitter divides a substantial fraction of the RF signal among multiple outputs.

A directional coupler normally samples only a controlled fraction of the mainline signal.

A conventional splitter provides nominally equal-phase outputs.

A 90° or 180° hybrid intentionally provides a defined phase difference between outputs.

Yes.

MCDI’s Application Engineering team in Israel can help identify suitable Mini-Circuits splitter / combiners according to frequency, number of ways, isolation, loss, balance, power, impedance, DC pass and interface requirements.

Why Source Mini-Circuits RF Power Splitters Through MCDI?

MCDI is Mini-Circuits’ exclusive representative and distributor in Israel, providing Israeli engineers and purchasing teams with access to Mini-Circuits RF, microwave and millimeter-wave products together with local technical, commercial and logistical support.

Local Application Engineering

Splitter / combiner selection requires balancing:

  • Frequency
  • Number of ways
  • Isolation
  • Insertion loss
  • Amplitude unbalance
  • Phase unbalance
  • RF power
  • Combiner signal coherence
  • DC pass
  • Mechanical interface

MCDI’s Application Engineers can help identify suitable Mini-Circuits models.

Technical Support in Hebrew and English

Discuss your RF distribution or combining requirements directly with an Israel-based engineering team familiar with Mini-Circuits components and systems.

High-Power Combining Support

For amplifier combining and high-power systems, MCDI can help evaluate:

  • Coherent signal requirements
  • Non-isolating combiner architectures
  • Combiner dissipation
  • Amplifier phase matching
  • Thermal requirements

Complete RF Distribution Solutions

MCDI can also assist with:

  • Amplifiers
  • Attenuators
  • RF switches
  • Couplers
  • Filters
  • Phase shifters
  • RF cables
  • Custom signal-distribution systems

Support from Selection Through Delivery

MCDI supports customers in Israel from product selection and quotation through ordering, logistics and post-sales technical assistance.

New RF Power Splitters / Combiners

Microstrip / Stripline 90° Hybrid, 1000 – 6500 MHz, 50Ω
Microstrip / Stripline 90° Hybrid, 400 – 1000 MHz, 50Ω
2 Ways Core & Wire Power Splitter, 5 – 2150 MHz, 75Ω
LTCC Surface Mount Power Splitter/Combiner, 50Ī©, 2500 to 5000 MHz
Microstrip / Stripline 90° Hybrid, 8000 – 12000 MHz, 50Ω

RF Power Splitters / Combiners - Related Articles

One last thing...

Aharon

Before you leave, you should know that MCDI’s professional team of Application EngineersĀ  will be delighted to assist you in sourcing the right component. Just fill the form and we will be back to you shortly.