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RF and Microwave Filter Products

SARAS utilises a range of technologies to realise high-performance, compact and cost-effective filtering solutions.

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Bandpass
SARAS can design and manufacture RF and Microwave bandpass filters (BPF) to your requirements
including electrical, mechanical and environmental specifications.
SARAS utilises a range of technologies to realise the most compact and cost-effective filtering solution. A large range of Bandpass filter designs are currently available in Lumped Element, Ceramic, Machined Cavity, Waveguide, Microstrip and Suspended Substrate

Examples include:

  • LGSM066 – Low Band GSM Bandpass Filter
  • HGSM067 – High Band GSM Bandpass Filter
  • MDB001 – Dual Bandpass Filter
Notch and BandStop

SARAS can design and manufacture RF and Microwave bandpass filters (BSF) to your requirements including electrical, mechanical and environmental specifications.
SARAS utilises a range of technologies to realise the most compact and cost-effective filtering solution. A large range of Bandstop filter designs are currently available in: Lumped Element, Cavity, Waveguide, Microstrip and Suspended Substrate

Example:

High Pass

SARAS can design and manufacture RF and Microwave Highpass filters (HPF) to your requirements including electrical, mechanical and environmental specifications. SARAS utilises a range of technologies to realise the most compact and cost-effective filtering solution. A large range of Highpass filter designs are currently available in: Lumped Element, Waveguide, Microstrip and Suspended Substrate.

Low Pass

SARAS can design and manufacture RF and Microwave Lowpass filters (LPF) to your requirements including electrical, mechanical and environmental specifications.
SARAS utilises a range of technologies to realise the most compact and cost-effective filtering solution. A large range of Lowpass filter designs are currently available in: Lumped Element, Tubular, Waveguide, Microstrip and Suspended Substrate

Diplexers/Duplexers

Usually used to separate the transmit and receive channels connected to a single antenna. SARAS can design and manufacture RF and Microwave Diplexer filters to your requirements including electrical, mechanical and environmental specifications.
SARAS utilises a range of technologies to realise the most compact and cost-effective filtering solution. A large range of Diplexer filter designs are currently available in: Lumped Element, Ceramic, Cavity, Waveguide, Microstrip and Suspended Substrate.

Example:

Multiplexers

SARAS can design and manufacture RF and Microwave Triplexer, Quadriplexer and Multiplexer filters to your requirements including electrical, mechanical and environmental specifications.
SARAS utilises a range of technologies to realise the most compact and cost-effective filtering solution. A large range of Multiplexer filter designs are currently available in: Lumped Element, Ceramic, Cavity, Waveguide, Microstrip and Suspended Substrate.

Examples:

Switch Filter banks

Typically single input to single output where a number of different filters (BSF/BSF/HPF/LPF) can be selected by the user. SARAS can design and manufacture RF and Microwave Switch Filter Banks to your requirements including electrical, mechanical and environmental specifications.
SARAS utilises a range of technologies to realise the most compact and cost-effective filtering solution. A range of Switch filter
bank designs are currently available in:
Lumped Element
Ceramic
Cavity -Machined Combline and Interdigital
Microstrip and Suspended Substrate

Example:

  • SFB026 – 6 Channel 50 to 500 MHz switched Harmonic Filter Band
Filter Technologies

SARAS utilises a range of technologies to realise the most compact and cost-effective filtering solution. A large range of filter designs are currently available in:

  • Lumped Element – versatile and commonly used in applications where small size is required – consists of discrete capacitors and inductors soldered to a substrate in various schematic configurations. Offers: Compact Size, Surface/PCB mount or connectorized, Wide range of topologies, Designs to 3GHz and beyond
  • Tubular – offer broad stopbands and high-power handling capability and are ideal for harmonic rejection.
  • Ceramic – best suited for frequencies between 200MHz and 8GHz, using high dielectric resonators. Offer: low insertion loss, low cost, and small size.
  • Cavity – available in Machined Combline and Interdigital designs, cavity filters can offer high power handling, low loss and high levels of rejection
  • Waveguide – can be used in the frequency range 1GHz to in excess of 100GHz. They are used in applications where high-power handling and low insertion loss is required.
  • Microstrip and Suspended Substrate – printed circuit technology that can be used for both broadband and narrowband filters from 500MHz to 40GHz. Offer: Compact Design, High Reliability and Repeatability, 500MHz to 40GHz.
Data Sheets/Brochures
Saras Technology