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- Products
  Spectrum Control EMI Filter Connectors offer US manufacturing and the shortest lead times in the industry
  
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- EMI Protection
  Dual-line EMI filters combine the benefits of two filters in one package saving space and weight
  
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- Components
  We design and manufacture the most advanced line of RF/microwave filters in the industry
  
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- Subsystems
  Use our Butler matrix in a wireless test environment to ensure the signal is optimally conditioned for highest throughput. The new 16×16 channel version can support MIMO (WiFi 7) or multiple lower order devices concurrently.
  
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- Custom Solutions
  From engineering to layout & design to approval process to manufacturing to quality assurance, we can meet and exceed all your thin film requirements.
  
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  - Enabling Technologies
  - Custom Products
- Secure Systems
  Don't ignore the cyber security blind spot. Find out more about our TEMPEST products for both desktop and mobile applications.
  
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Aerospace + Defense
- Aerospace + Defense
  High-power surface acoustic wave (SAW) filters handle power inputs up to +35 dBm with tighter bandwidths and expanded package options.
  
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- Air
- Land
- Sea
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Commercial
- Commercial
  Aerospace highlight... How does 5G Affect Airline Altimeters?
  
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About
- About
  CEO VIEW
  
  Rich Sorelle talks about building a new kind of RF company.
  
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Weinschel

For over sixty years the name Weinschel has become synonymous with leadership in RF and microwave technologies and superior quality components and subsystems. Weinschel products find a home in the wireless, defense, test, and broadband markets throughout the world.

Among its many technological achievements, Weinschel was the first company to design and manufacture commercially available coaxial attenuators.

Today, Spectrum Control continues to provide a full line of standard Weinschel products together with custom-engineered solutions to satisfy market needs for precision and high reliability components and systems.

Fixed Attenuators

Spectrum Control's Weinschel brand offers a wide selection of fixed attenuators, high reliability attenuators, and manual step attenuators.

Hi Rel Attenuators

Weinschel has developed this program to meet or exceed many high reliability requirements imposed by both government and commercial customers.

Manual Step and Continuously Variable Attenuators

Manual Step and Continuously Variable Attenuators are ideal for lab bench applications and front panel mounting on instruments and subsystems.

Coaxial Terminations

Weinschel Brand Coaxial Terminations are available in a variety of connector types and in frequency ranges of DC to 50GHz, power handling to 1,000 W.

Connector Systems

The Planar Crown® is designed for front panel mounting on instruments and the Planar Blindmates® are designed for blind mate applications in inaccessible regions.

Power Dividers

Weinschel brand Wilkinson & broadband resistive power dividers up to 40.0 GHz for dual channeled insertion loss measurements, calibration measurements, etc.

Power Splitters

Spectrum Control Weinschel brand power splitters are intended for RF and wireless applications in which one of the two outputs is included in a leveling loop or is used as a reference in a ratio system

Phase Shifters

Ideal for high densely packaged systems with minimum accessibility. Linear adjustable in a small in-line coaxial packages.

Coaxial Adapters

Weinschel brand

Butler Matrices

Butler matrices are beamforming networks in which N isolated inputs are connected to N outputs. The relative phase of each output changes linearly with position.

Programmable Attenuators

A wide selection of solid-state, mechanical relay and edge-line designs. Available in a variety of step sizes and frequency bands.

Multichannel Phase Shifter Subsystems

Benchtop and rack mount multichannel phase shifters

Test, Simulation, RF Distribution

Spectrum Control Weinschel offers solutions to challenging test, simulation and RF distribution requirements.