MCDI - Mini-Circuits Exclusive Representative in Israel

RF, Microwave & mmWave Filters

Mini-Circuits RF Filters with Selected Solutions to 86 GHz with Local Engineering Support in Israel

MCDI offers a broad selection of Mini-Circuits RF, microwave and millimeter-wave filters for signal conditioning, interference rejection, harmonic suppression, channel selection and frequency separation throughout RF signal chains.

The portfolio includes low-pass, high-pass, band-pass, band-stop, dual-passband, reflectionless filters, diplexers, triplexers and specialized filter functions, with surface-mount, connectorized, plug-in, bare-die and waveguide configurations.

Mini-Circuits supports a wide range of filter technologies including LTCC, lumped LC, thin film, cavity, ceramic resonator, suspended substrate, microstrip, MMIC reflectionless and waveguide designs.

Selected band-pass and waveguide filter solutions operate at frequencies as high as 86 GHz, while other filter families are optimized for different frequency ranges, bandwidths, rejection levels, insertion loss and power requirements.

MCDI’s Application Engineering team in Israel can assist you in selecting the appropriate filter according to passband, stopband, rejection, insertion loss, bandwidth, selectivity, return loss, power handling, impedance, technology and mechanical interface.

Local RF Engineers

Hebrew & English Professional Support

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Get a quote within hours or less

Flexible Logistics

DDP & Ex-Works - your choice

Custom Solutions

Custom Adapters & Catalog modifications

Non-Catalog parts

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RF Equalizers Catalog

Use the RF Filter Catalog below to search and compare Mini-Circuits filters according to your application requirements.

Search and filter according to:

  • Part number
  • Passband lower frequency
  • Passband upper frequency
  • Stopband frequencies
  • Stopband rejection
  • Filter type
  • Filter technology
  • Interface
  • Impedance

Filter types include:

  • Band-pass
  • Band-pass + balun
  • Dual-passband
  • Low-pass
  • High-pass
  • Band-stop
  • Differential low-pass
  • Dual low-pass
  • Flat-delay low-pass
  • Diplexers
  • Triplexers
  • All-pass / thru-line products

For complete insertion-loss, return-loss, rejection, group-delay, RF power, mechanical and environmental specifications, always refer to the individual Mini-Circuits product datasheet.

Filters

Diplexers, Triplexers

All Pass/Thru Line

Mini-Circuits also offers all-pass or thru-line components designed to provide physical and RF compatibility with selected filter footprints without applying the same frequency-selective filtering function.

These components can be useful for:

  • PCB platform standardization
  • Prototype development
  • Filter bypass configurations
  • Product variants using the same board layout
  • Performance comparison with and without filtering

An RF filter is a frequency-selective component designed to allow desired frequencies to pass while attenuating unwanted signals outside the required frequency range.

Filters are fundamental building blocks in RF, microwave and millimeter-wave systems and can be used to:

  • Reject unwanted interference
  • Suppress harmonics and spurious signals
  • Define receiver or transmitter bandwidth
  • Isolate neighboring frequency bands
  • Prevent out-of-band signals from reaching sensitive components
  • Separate or combine multiple frequency bands
  • Improve system dynamic range
  • Protect amplifiers, mixers and receivers from unwanted spectral content

The correct filter architecture depends on which frequencies need to pass and which need to be rejected.

Low-Pass Filters

A low-pass filter allows frequencies below its cutoff region to pass while attenuating frequencies above the passband.

Typical applications include:

  • Harmonic suppression
  • DAC and ADC filtering
  • Limiting broadband noise
  • RF transmitter cleanup
  • Mixer output filtering
  • IF signal conditioning

When selecting a low-pass filter, consider:

  • Passband upper frequency
  • 3 dB cutoff frequency
  • Stopband frequency
  • Required rejection
  • Insertion loss
  • Return loss
  • Group delay
  • RF power handling

Mini-Circuits offers low-pass filters in multiple technologies and mechanical formats for applications from low-frequency RF through microwave bands.

High-Pass Filters

A high-pass filter passes frequencies above its cutoff region while attenuating lower-frequency signals.

Applications include:

  • Rejecting low-frequency interference
  • DC and low-frequency noise suppression
  • Removing unwanted lower-frequency mixer products
  • Broadband receiver signal conditioning
  • Communication systems
  • Test and measurement

Important parameters include cutoff frequency, passband insertion loss, stopband rejection, selectivity and impedance matching.

Band-Pass Filters

A band-pass filter allows a defined range of frequencies to pass while rejecting signals both below and above the desired band.

Band-pass filters are widely used in:

  • Receivers
  • Transmitters
  • Radar
  • Satellite communications
  • Test equipment
  • Channel-selection systems
  • Signal generators
  • Wireless infrastructure
  • Microwave and mmWave systems

Important specifications include:

  • Lower passband edge
  • Upper passband edge
  • Center frequency
  • Bandwidth
  • Fractional bandwidth
  • Insertion loss
  • Rejection below the passband
  • Rejection above the passband
  • Return loss
  • Group delay

Mini-Circuits offers band-pass solutions using technologies ranging from compact LTCC and thin-film filters to cavity, suspended-substrate and waveguide designs.

Selected Mini-Circuits band-pass and waveguide filter solutions extend to 86 GHz.

Band-Stop / Notch Filters

A band-stop filter, sometimes called a notch filter depending on its bandwidth and application, rejects a defined frequency region while allowing frequencies below and above that region to pass.

Band-stop filters can be used to suppress:

  • Strong interferers
  • Local oscillator leakage
  • Specific spurious signals
  • Unwanted communication bands
  • Harmonics
  • Narrowband interference

The required notch depth, bandwidth and distance between the stopband and wanted signals are important selection criteria.

Dual-Passband Filters

A dual-passband filter allows two separate frequency regions to pass while rejecting frequencies outside or between the desired bands.

This architecture can simplify systems that need to handle two independent operating bands through a common RF path.

Applications may include:

  • Multi-band communication systems
  • Test equipment
  • Receivers
  • Satellite systems
  • Multi-band instrumentation

Diplexers

A diplexer combines or separates two different frequency bands while maintaining isolation between the two band-specific ports.

A common configuration combines:

  • One low-pass branch
  • One high-pass branch

into a common wideband port.

Diplexers can therefore allow two signals at different frequencies to share the same cable or RF signal path.

Applications include:

  • Communications infrastructure
  • Satellite systems
  • RF test equipment
  • Multi-band antennas
  • Signal distribution
  • Transmitter and receiver combining

Unlike a conventional power combiner, a frequency diplexer separates signals according to frequency and does not inherently impose the theoretical 3 dB combining loss associated with equal power splitting.

Triplexers & Multiplexers

A triplexer separates or combines three frequency bands.

More complex multiplexer architectures may handle four or more separate frequency regions.

These products can reduce:

  • Component count
  • Cabling
  • Signal-path complexity
  • System size

while providing frequency-selective routing between multiple RF bands.

Typical applications include:

  • SATCOM
  • Communication infrastructure
  • Wideband test systems
  • Multi-band radios
  • Signal-distribution systems

Reflectionless RF Filters

Most conventional RF filters reject unwanted frequencies by reflecting stopband energy back toward the source.

In some systems, these reflections can interact with nonlinear components such as:

  • Amplifiers
  • Mixers
  • Multipliers
  • ADCs
  • DACs

and contribute to unwanted ripple, intermodulation products or other system-level effects.

Mini-Circuits’ patented reflectionless filter technology instead absorbs and internally terminates stopband signals while maintaining a broadband impedance match.

Reflectionless filters can be especially useful:

  • Adjacent to nonlinear RF components
  • In cascaded filter networks
  • In mixer and multiplier chains
  • In high-dynamic-range receiver systems
  • Around ADCs and DACs
  • Where conventional filter reflections degrade system performance

Mini-Circuits offers reflectionless low-pass, high-pass and band-pass solutions in surface-mount, connectorized and bare-die formats.

Different filter technologies provide different combinations of size, bandwidth, insertion loss, rejection, selectivity, power handling and cost.

There is no single filter technology that is optimal for every RF application.

LTCC Filters

Low Temperature Co-Fired Ceramic – LTCC technology enables compact surface-mount filters with highly repeatable manufacturing performance.

LTCC filters are particularly attractive for:

  • High-volume production
  • Compact RF modules
  • Wireless systems
  • Communications equipment
  • Space-constrained PCB designs

Mini-Circuits offers a very broad range of LTCC low-pass, high-pass, band-pass, diplexer and related designs.

Lumped LC Filters

Lumped-element LC filters use inductors and capacitors to create the required frequency-selective response.

Advantages may include:

  • Broad choice of filter responses
  • Compact implementations at suitable frequencies
  • Flexible custom designs
  • Multiple package options
  • Cost-effective production

They are widely used throughout RF and IF signal chains.

Cavity Filters

Cavity filters use resonant structures to achieve high selectivity and low passband insertion loss.

They are particularly useful when applications require:

  • High Q
  • Narrow bandwidth
  • Sharp rejection skirts
  • High stopband rejection
  • Good power handling
  • Rugged mechanical construction

Typical applications include:

  • SATCOM
  • Radar
  • Military communications
  • Base stations
  • Test equipment
  • High-performance RF systems

MCDI offers a dedicated range of Mini-Circuits cavity band-pass filters.

Suspended Substrate Filters

Suspended substrate stripline filters use a circuit substrate positioned between ground planes, with much of the electromagnetic field propagating through air rather than a conventional solid dielectric.

This construction can provide:

  • High Q
  • Low insertion loss
  • Wide passbands
  • Wide stopbands
  • Sharp rejection
  • Good temperature stability
  • Rugged mechanical performance

Suspended substrate technology is especially useful for wideband microwave systems and demanding test applications.

Potential applications include:

  • Ultra-wideband receivers
  • Electronic warfare
  • Instrumentation
  • SATCOM
  • 5G
  • Aerospace and defense

Thin-Film Filters

Thin-film fabrication provides compact and repeatable high-frequency filtering structures.

Mini-Circuits thin-film filters are used for applications requiring:

  • Compact SMT implementation
  • Microwave operation
  • Low insertion loss
  • Wide passbands
  • High rejection
  • Stable production repeatability

Thin-film technology is particularly useful where traditional PCB-based filtering becomes difficult at higher microwave frequencies.

Ceramic Resonator Filters

Ceramic resonator filters can provide a useful combination of:

  • Good selectivity
  • Relatively low insertion loss
  • Strong rejection
  • Good power handling
  • Compact construction

They are widely used in communication systems where strong adjacent-band rejection is required.

Microstrip Filters

Microstrip filters use printed transmission-line structures to implement frequency-selective networks.

They can provide:

  • Wide operating bandwidth
  • Low insertion loss
  • Predictable group delay
  • Connectorized implementation
  • Useful microwave-frequency performance

Waveguide Filters

At millimeter-wave frequencies, waveguide filters provide low-loss filtering using rectangular waveguide interfaces.

Mini-Circuits offers waveguide filter solutions with selected passbands extending through 86 GHz.

Waveguide filtering is useful in applications such as:

  • mmWave test and measurement
  • Radar
  • SATCOM
  • Aerospace and defense
  • 5G / advanced wireless research
  • High-frequency instrumentation

Define the Frequencies That Must Pass

Start by identifying the desired signal band.

For a band-pass filter, define:

  • Lower passband frequency
  • Upper passband frequency

For low-pass and high-pass filters, identify the required cutoff region.

Do not select a filter based only on center frequency.

Define the Frequencies That Must Be Rejected

Next, identify unwanted frequencies and determine how much attenuation is required.

For example:

  • Interferer frequency
  • Harmonic frequency
  • Local oscillator leakage
  • Image frequency
  • Adjacent communication band
  • Spur frequency

The stopband requirement should specify both:

  • Frequency
  • Required rejection in dB

Insertion Loss

Insertion loss describes how much wanted-signal power is lost within the filter passband.

Lower insertion loss is generally desirable, particularly in:

  • Receiver front ends
  • Low-noise systems
  • High-power transmitter chains
  • Precision test equipment

However, achieving sharper rejection or narrower bandwidth can involve tradeoffs with insertion loss.

Rejection

Rejection describes how strongly the filter suppresses unwanted frequencies.

For example, a filter may provide:

  • 20 dB rejection
  • 40 dB rejection
  • 60 dB rejection
  • 100 dB or greater rejection

depending on filter topology and technology.

Specify rejection at meaningful frequencies rather than simply asking for “high rejection.”

Selectivity

Selectivity describes how rapidly the filter transitions between the passband and stopband.

A filter with a steep transition allows wanted and unwanted signals that are relatively close in frequency to be separated more effectively.

Applications with strong adjacent interferers often require high selectivity.

Bandwidth

For band-pass filters, bandwidth is the difference between the upper and lower passband edges.

The fractional bandwidth compares bandwidth with center frequency and can help determine which filter technology is appropriate.

Narrowband and ultra-wideband designs may require very different technologies.

Return Loss and VSWR

The filter should maintain suitable impedance matching within the passband.

Poor matching can introduce:

  • Signal reflections
  • Passband ripple
  • Interactions with adjacent components
  • Reduced system performance

Review return loss or VSWR throughout the required operating band.

Group Delay

Some applications are sensitive not only to signal amplitude but also to phase versus frequency.

Group delay variation can distort wideband or modulated signals even when passband insertion loss appears acceptable.

Group delay may be important for:

  • Wideband communications
  • Radar
  • Pulse systems
  • Test equipment
  • High-speed modulated signals

Power Handling

The filter must safely handle the RF power in the application.

Check both:

  • Continuous-wave power
  • Peak power, where applicable

and review frequency, temperature and load conditions where specified.

Impedance

Mini-Circuits offers filters for 50 Ω systems and selected 75 Ω applications.

Use a filter whose impedance matches the rest of the RF signal chain.

Surface-Mount, Connectorized, Die or Waveguide?

Choose the interface according to your system architecture.

Surface-mount: best suited for PCB-level integration.

Connectorized: convenient for laboratories, complete systems and prototyping.

Bare die: suited to hybrid microwave and chip-and-wire designs.

Waveguide: useful at high millimeter-wave frequencies.

Fixed Catalog Filter or Custom Design?

Catalog filters are generally the fastest and most economical solution when an existing model meets the required specification.

A custom filter may be appropriate when the application requires an unusual combination of:

  • Passband
  • Stopband
  • Rejection
  • Bandwidth
  • Insertion loss
  • Power
  • Package
  • Connector
  • Environmental requirements

MCDI can assist Israeli customers with Mini-Circuits custom filter requirements.

Receiver Front Ends

Filters reject unwanted signals before they reach sensitive receiver components.

This can help reduce:

  • Out-of-band interference
  • Receiver overload
  • Intermodulation
  • Unwanted mixer products

Transmitter Harmonic Suppression

Low-pass and band-pass filters can reduce harmonics and unwanted spurious outputs from:

  • Amplifiers
  • Mixers
  • Frequency multipliers
  • Signal generators
  • Transmitters

Wireless Communications

RF filters define communication bands, reject adjacent interferers and help maintain spectral purity in transmit and receive signal chains.

Satellite Communications

SATCOM systems use band-pass, cavity, suspended-substrate, diplexer and other filter technologies for:

  • Channel selection
  • Frequency-band separation
  • Interference rejection
  • Signal combining
  • Transmit and receive filtering

Radar

Radar systems often require filters with:

  • Wide bandwidth
  • High rejection
  • Low insertion loss
  • High power handling
  • Stable group delay

depending on the signal-chain location.

RF Test & Measurement

Filters are widely used in laboratory and automated test systems to:

  • Remove harmonics
  • Isolate frequency bands
  • Clean signal-generator outputs
  • Protect measurement instruments
  • Create defined test bandwidths

5G & Millimeter-Wave

Compact microwave and mmWave filter technologies support:

  • 5G development
  • High-frequency instrumentation
  • Semiconductor characterization
  • Advanced wireless research
  • mmWave signal conditioning

Aerospace & Defense

Cavity, suspended-substrate, waveguide and other rugged filter technologies can support demanding aerospace, radar, electronic warfare and military communications applications.

Special & Custom RF Filters

RF filter requirements are often application-specific.

A standard catalog filter may not provide the exact combination of:

  • Center frequency
  • Bandwidth
  • Rejection
  • Insertion loss
  • Package
  • Interface
  • Power handling

required by the design.

Mini-Circuits offers custom filter design capability across multiple filter technologies.

MCDI’s Application Engineering team can assist Israeli customers in defining the required specification and evaluating whether an existing catalog model or custom filter is the better solution.

When requesting a custom filter, provide as much information as possible, including:

  • Filter type
  • Passband
  • Stopband
  • Required rejection
  • Maximum insertion loss
  • Return loss
  • Group-delay requirements
  • RF power
  • Impedance
  • Interface
  • Package limitations
  • Quantity
  • Application
What is an RF filter?

An RF filter is a frequency-selective component designed to allow desired RF frequencies to pass while attenuating unwanted frequencies.

A low-pass filter passes lower frequencies and rejects frequencies above its cutoff region.

A high-pass filter passes higher frequencies and rejects frequencies below its cutoff region.

A band-pass filter allows frequencies within a defined frequency range to pass while attenuating frequencies below and above that band.

A band-stop filter rejects a defined frequency range while allowing frequencies outside that range to pass.

Insertion loss is the amount of wanted-signal power lost when the filter is inserted into the RF signal path.

It is normally expressed in dB.

Rejection describes how strongly a filter attenuates unwanted frequencies in its stopband.

For example, 40 dB rejection means the unwanted signal is reduced by approximately 40 dB relative to its input level.

Selectivity describes how sharply a filter transitions between the passband and stopband.

Higher selectivity allows frequencies relatively close together to be separated more effectively.

For a band-pass filter, fractional bandwidth is the bandwidth divided by the filter’s center frequency, usually expressed as a percentage.

It is useful when comparing narrowband and wideband filter requirements.

A reflectionless filter absorbs and internally terminates stopband signals instead of reflecting them back toward the source.

This can reduce unwanted interactions with nonlinear RF components.

A conventional power combiner combines signals without frequency-selective separation and is subject to the power-divider relationship of the network.

A diplexer combines or separates signals according to frequency, allowing different frequency bands to share a common port with only the practical insertion loss of the filtering network.

A triplexer combines or separates three different frequency bands through a common RF port while maintaining isolation between the individual band ports.

An LTCC filter is a compact ceramic-based surface-mount filter manufactured using Low Temperature Co-Fired Ceramic technology.

LTCC provides repeatable, high-volume production of compact RF filtering structures.

Cavity filters are useful where applications require high Q, sharp selectivity, strong rejection, low insertion loss and good power handling.

A suspended-substrate filter uses a transmission structure suspended between ground planes, with much of the electromagnetic field propagating through air.

This can provide low insertion loss and high Q for broadband microwave applications.

Mini-Circuits offers many filter families across different RF and microwave frequency ranges.

Selected band-pass and waveguide filter solutions extend to 86 GHz, while low-pass, high-pass, diplexer and other families have their own specific operating ranges.

Always verify the individual model specifications.

Yes. Mini-Circuits provides custom filter design capability across multiple filter technologies.

MCDI can help define and submit custom filter requirements for customers in Israel.

Yes. MCDI’s Application Engineering team in Israel can help identify suitable Mini-Circuits filters according to passband, stopband, rejection, insertion loss, bandwidth, RF power, impedance, interface and application requirements.

Why Source Mini-Circuits RF Filters 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

Selecting a filter requires more than identifying a center frequency.

MCDI’s Application Engineers can help evaluate:

  • Passband
  • Stopband
  • Rejection
  • Insertion loss
  • Selectivity
  • Bandwidth
  • Return loss
  • Group delay
  • RF power
  • Technology
  • Interface

and identify suitable Mini-Circuits catalog or custom solutions.

Technical Support in Hebrew and English

Discuss your RF requirements directly with an Israel-based engineering team familiar with Mini-Circuits filter technologies and signal-chain products.

Custom Filter Support

If a catalog filter does not meet the required specification, MCDI can assist with defining and submitting a custom-filter requirement to Mini-Circuits.

Complete RF Signal-Chain Support

MCDI can also assist with related Mini-Circuits products including:

  • Amplifiers
  • Mixers
  • Splitters
  • Couplers
  • Attenuators
  • Equalizers
  • RF cables
  • Bias tees
  • DC blocks

allowing filter selection to be evaluated in the context of the complete RF signal chain.

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 Filters

Thin Film Bandpass Filter, 14.2 to 17.4 GHz, 50Ω, 2.92 mm Female
Thin Film Bandpass Filter, 9.35 to 10.9 GHz, 50Ω, 2.92 mm Female
Suspended Substrate High Pass Filter, 26 to 50 GHz, 50Ω, 2.4mm Female
Lumped LC High Pass Filter, 0.5 – 14 GHz
Lumped LC High Pass Filter, 1 – 16 GHz

RF Filters - Related Articles

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Aharon

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