Category: Products

RF BalunRF Balun

Below is an image of P/N BA26-50-100. It is an RF 2:1 Balun, converting 50-ohm unbalanced line to 100-ohm balanced line.

These devices are made to order with the standard design using a SMA female for the 50 ohm input and post /banana lugs at the 100 ohm outputs. Frequency ranges are typically 1-20 MHz with VSWR better than 1.5:1 and Insertion loss less than 1.5 dB. Frequency can be extended with deteriorated performance if needed. Going below 1 MHz is not recommended due to theoretical transformer limitations.

Call or email ESS with any questions. sales@engineeringspecialties.net

RF 2:1 balun, converting 50-ohm unbalanced line to 100-ohm balanced line

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Ferrite CirculatorsFerrite Circulators

ESS works with customers to design and build circulators. We design, manufacture and test waveguide circulators from WR284 – WR22. Our specialty is waveguide, but we can provide consultation for coaxial circulators as well. Contact us with any circulator application!

Water-cooled Circulator
Air-cooled Circulator
WR-28 Circulator
WR-22 Circulator
WR-62 Circulator
WR-187 Circulator

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Passive ComponentsPassive Components

ESS designs many different passive components. We work with customers to help design exactly what they need for their specific application. Contact us for all your passive component needs; even if it is not listed here, it is likely we can help!

Some Components Include…

  • Type-N to LC Adapter
  • Type-N to LC Adapter
  • Special Adapter
  • Dielectric-Loaded Special Adapter
  • Dielectric-Loaded Waveguide
  • Internal Coaxial Circulator
  • Water-Cooled Circulator
  • Air-cooled Circulator
  • Load Inserts
  • Cone Load Insert
  • Load Inserts

High Power Loads

ESS designs a variety of high-power load assemblies. We work with customers to accommodate their power requirements, length limitations, cooling methods and much more. Contact us with your specific application, so we can provide details about power handling, frequency, and VSWR.

  • WR112 High Power Load
  • WR-650 High Power Load
  • WR51 High Power Load
  • WR159 High Power Load
  • WR-650 High Power, Water Cooled Load
  • WR112 High Power Load Assembly

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Calibration KitsCalibration Kits

ESS manufactures and tests custom waveguide (WR22 – WR650) and coaxial calibration kits

Waveguide

A typical full calibration kit includes the following components:

  • 2 transition/adapters to standard coax for VNA connections
  • 2 offset short circuits (1/8 and 3/8 wavelength)
  • 2 fixed precision loads
  • Sliding load (if requested)
  • Flanged fixed pads (if requested)
  • Hard copy/PDF copies of calibration standards

Note: ESS also provides partial kits if only some components are required. Contact us for pricing and availability!

  • WR22 Round to Square Flange
  • WR112 Cal Kit
  • WR22 Cal Kit

Coax: from 7/8 EIA to 6 1/8 EIA

  • 2 precision fixed coax 50 ohm terminations
  • 2 coax to coax (type-N female) adapters
  • 1 offset short circuit
  • 1 offset open circuit
  • 1 zero length straight section (if requested)
  • Hard copy/PDF copies of calibration standards

Note: ESS also provides partial kits if only some components are required. Contact us for pricing and availability!

  • 7/8 EIA Cal Kit
  • 7/8 EIA Cal Kit

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NiChrome Resistor CardNiChrome Resistor Card

ESS provides resistor cards for use in attenuators, loads, and many other microwave absorber applications. Substrates include FR-4, Alumina, quartz and many others. 

We can provide a range of resistance values from 10 ohms/sq. up to 400 ohms/sq.

L and H dimensions up to 10″, T dimension up to 0.25″

Standard Mica Resistance Card

Contact us if your application requires specific dimensions or resistances; details about our standard products are below:

Dimensions2.0″ x 5.0″ x 0.005″
Resistance Surface75 ohms/ sq or 150 ohm/sq
Temperature150°C Maximum

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