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RF, Microwave and Millimeter-Wave Technologies for Defense, Space, Communications and Industry

Spectrum Control's Weinschel brand is the global leader in high-reliability RF, microwave, and millimeter-wave technologies for the defense, space, wireless communications, and test and measurement industries.

Weinschel was the first to design and manufacture commercially available coaxial attenuators, and we have never stopped innovating. Our co-located customer support team and global sales channel ensure delivery and satisfaction of the very best RF and microwave components and RF test solutions.

Weinschel Brand Products

Weinschel products include fixed coaxial attenuators, programmable attenuators, high power terminations, resistive splitters and dividers, and phase shifters. RF, microwave, and millimeter-wave technologies for testing, defense, wireless communications, space, and “new space” applications. Everywhere your signal matters. We design, test, manufacture, and support all our products.

RF & Microwave Components

fixed attenuator hi rel attenuator coaxial termination

We offer a wide selection of fixed coaxial attenuators with frequency ranges from DC to 50 GHz and power handling to 1,000 Watts. For applications demanding broadband accuracy with low SWR and accurate repeatability over large attenuation ranges, we also manufacture manual step attenuators. 

High-reliability attenuators meet or exceed the requirements imposed by the defense, space, government, and commercial industry customers for the most demanding applications and standards including MIL-DTL-3933. A major share of Weinschel connectors and components used with these high-reliability attenuators are inspected and tested using MIL-DTL-3933 as a guideline. 

Weinschel brand coaxial terminations are available in a variety of connector types and in frequency ranges of DC to 50GHz, with power handling to 1,000 Watts.


Wireless Test Solutions

Weinschel wireless testing solutions help engineers detect deficiencies in mobile networks and devices from an end-user point of view. Test, optimize and quickly roll-out your newest chipset, wireless service or device with our complete line-up of RF test solutions, including:

  • Programmable attenuators: for transmission loss simulation, signal fading and handovers
  • Butler matrices and switches: used for switching and MIMO simulations
  • Phase shifters: for varying phase/time delay and multipath simulation use-cases
  • Test solutions: test complex use-cases, including MU-MIMO, Handover and Mesh Connectivity
  • Multipath Emulator: simulates true multipath effects
Programmable Attenuator Multi Channel Programmable Attenuator Butler Matrix Phase Shifters Multi Channel Phase Shifters Custom Engineered Solutions

Solid-state and electromechanical programmable attenuators are available in a variety of step sizes and frequency bands. 

Multichannel programmable attenuator systems: For bench test and ATE applications. Control software included. Ensure successful rollout of your wireless devices, services, and applications. High power attenuator (100W) available. 

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. Click for our selection of 4x4, 8x8 and 16x16 butler matrices.

Used to change the transmission phase angle of an input signal by adding propagation delay, phase shifters are ideal for high densely packaged systems with minimum accessibility. 

Weinschel brand multi-channel phase shifter systems are suited for benchtop use and systems integration. Electromechanically switched delay line, and solid-state solutions are available.

Weinschel offers custom RF test solutions for commercial wireless, radar satellites, signal analysis, production test systems & precision microwave-related test instruments.

Weinschel Brand Connectors & Adapters

Utilizing proprietary design techniques, we offer connectorized devices that are mechanically robust, stable and deliver superior performance. Many of these standard products were originally designed for particularly demanding broadband requirements, SWR, and high power system applications.

Divider Splitter Connector Adapter

Power dividers available to 40.0 GHz.

Power splitters are used for RF and wireless applications. 

Connectors are typically used as a pair or set which is comprised of two connector subassemblies that have a common mating interface.

In-series and between series coaxial adapters. Available in SMA and Type N connector types.

Weinschel Quality

Original Spectrum Control Weinschel designs led to the development of the distributed resistor card attenuator element, which is the basis for most all attenuators manufactured today from DC - 65 GHz. We remain committed to product innovation.

APITech Weinschel’s 35,000 square-foot facility in Frederick, MD houses more than 100 employees and is Certified to ISO 9001:2008 standards.

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