SARAS Technology Ltd. | Castle Microwave » Castle Microwave

SARAS Technology Ltd.

At Castle Microwave, we have a history of working within the Amplifiers and Filters industries. That’s why we’re proud to partner with SARAS Technology Ltd..

SARAS' Capabilities

Castle Microwave is pleased to represent a UK company that has established a reputation for delivering reliable power amplifiers and filter products for a wide range of commercial and military applications worldwide.


With a catalogue of standard products and the capability to develop custom solutions, SARAS offer linear and ultra-linear power amplifiers for use in applications including Tactical Communications and Surveillance, Broadcast and Digital RF and Microwave communication equipment using digital modulation schemes. Amplifier capabilities include:

High Linearity
High Efficiency
Fast rise times
High Altitude
Harsh Environment
Options for integrated filters, controls, or other requirements.


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

Lumped Element – compact Size, Surface/PCB mount or connectorized, wide range of topologies, with designs to 3GHz and above

Tubular – high-power handling capability, high rejection and broad stopbands make this technology ideal for harmonic rejection.

Ceramic – typically used for frequencies between 200MHz and 8GHz, using high dielectric ceramic resonators these filters offer low insertion loss, low cost, and small size.

 – available in Machined Combline and Interdigital designs, cavity filters can offer high power handling, low loss and high levels of rejection

Waveguide – available from 1GHz upwards, SARAS waveguide filters provide high-power handling and low insertion loss

Microstrip and Suspended Substrate
 – using printed circuit technology that is suitable for both broadband and narrowband filters from 500MHz to 40GHz. Advantages include compact Design, high reliability and repeatability

All of the above products are designed and manufactured in the UK, contact us today to discuss your requirements!

Why work with Castle Microwave?

We are the UK’s leading Amplifiers and Filters supplier – and there are a number of reasons to work with us:

  • Rapid response times – we are proud of the speed it takes from initial enquiry to prototype, all the way through to manufacture.
  • Quality assurance – all of our products are held to the highest quality standards and checked at every stage of production.
  • State of the art manufacture – we work with a range of principals who are top of their field. Coupled with our manufacturers, who are top of their respective fields, we can guarantee state of art manufacture of the highest quality.

Want to know more about how SARAS Technology Ltd. can improve your product? Get in touch with a member of our friendly sales team today.

Request More information