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Attenuators, Bias-Ts, & Terminations
Fixed | Variable | Programmable)
Manufacturers & Services

The companies listed here can supply your needs for any type of attenuator, be it fixed, variable, or programmable. They provide not only a stock of off-the-shelf models, but can also design and manufacture custom models for meeting specialty decibel values, form factor, power handling, or other unique parameters.

One important thing to keep in mind is that specified values for attenuation are only guaranteed at 50+j0 ohms, or whatever the characteristic impedance of the attenuator model happens to be (50 and 75 ohms most common). The farther away from the characteristic impedance the connected ports are, the farther from the spec the attenuation value will be.

I provide an online attenuator calculator here.      Attenuator Design Data

everything RF
everything RF

Test Equipment - everythingRFeverything RF is a product discovery platform for RF & Microwave products/Services. We list over 169,000 Products from more Antennas - everythingRFthan 680 Companies across 188 Categories in our database and enable engineers to search for them using our customized parametric search tool.

Like Our Name Says, We're "everything RF"

  • Thousands of datasheets to download
  • Advanced product Search Engine
  • In-depth coverage of industry events
  • Test Equipment, Amplifiers, Mixers,
      Filters, Circulators, Couplers, Diodes,
      Coaxial Cable, Detectors, Front End Modules,
      Hardware, Antennas, Attenuators, Phase Shifters,
      Power Dividers, Terminations, Connectors,
      Isolators, Probes, RF Switches, Soldering stations,
      Transistors, Oscillators, Network Analyzers,
      RF Absorbers, Circulators, Waveguide

Centric RF
Centric RF
Allen, Texas

We're a company offering from stock various RF and Microwave coaxial components, including Attenuators, Adapters, Cable Assemblies, Terminations, Power Dividers, and more. We believe in offering high performance parts from stock at a reasonable cost. Our parts operate in the frequency ranges of 0-110 GHz, and at power levels from 0.5-500 watts.  

We Are Shipping Parts Currently in Inventory

  • Attenuators & Terminations

  • Coaxial Connectors & Adaptors

  • Coax Cable and Cable Assemblies

  • Power Dividers & Combiners

  • Connector Torque Wrenches & Tools

  • Isolators

Order today, ship today!

Aeroflex KDI, Inc | | 973-887-5700 | Whippany, NJ
Attenuators, phase shifters, digital time delay units, LNA's, switches, modulators, dividers combiners & couplers, ferrites, levelers, duplexers, amplifiers, resistors, terminations.

Bird Electronic Corp |
440-248-1200 | Cleveland, OH
High & low power, DC - 3 GHz, fixed, broadcast, wireless, filters, miniature coaxial couplers, combiner/divider 50 Ohm selector switches.

BroadWave Technologies |
317-346-6101 | Franklin, IN
Adapters, attenuators, power combiners, power dividers, power couplers, terminations, high power, 1-1500 Watts, connectors, adapters.

Centric RF | 800-399-6891| Allen, TX 
Stocks various RF and microwave coaxial components, including attenuators, adapters, cable assemblies, terminations, power dividers, and more.

Channel Microwave (now Smiths Microwave)
805-482-7280 | Camarillo, CA
Coaxial and waveguide isolators, circulators, ISO-adapters, integrated assemblies, filters, terminations.

Charter Engineering |
727-549-8999 | Largo, FL
Electromechanical switches, attenuators, couplers terminations, isolators, circulators, power dividers.

Corry Micronics |
724-940-7556 | Corry, PA
Dielectric resonators, bandpass filters, LC filters, VCOs, PLLs, patch antennas, power dividers, connectorized lumped element power dividers, directional couplers, isolators/circulators, high power hybrids, diplexers & multiplexers, attenuators, switches, cavity filters, waveguides, standard gain horn antennas.

Cougar Components (now Teledyne Cougar)
408-522-3838 | Sunnyvale, CA
RF and microwave cascadable amplifiers and subsystems in 100 kHz to 12 GHz range. Detectors, limiters, limiting amplifiers, attenuators, AGC amplifiers, oscillators w/MMIC amplifiers.

Diablo Industries (now DITF - Interconnect Technology)
775-782-1041 | Minden, NV
Produces thin film sputtered and etched circuits, fabricates RF microwave components such as mixers, attenuators, combiners, amplifier substrates and filters. We are a build to print service and can fabricate in volumes; servicing the microwave, optronics, aerospace markets.

DS Instruments |
805-242-6685 | San Luis Obispo, CA
RF & microwave test equipment and specialized hardware in smaller form-factors and at lower cost than previously available. All hardware design, firmware development, and assembly is based in the USA. Current offerings include tracking and microwave signal generators, microwave digital step attenuators, and in the near future a compact signal power meter and frequency counter capable of reaching nearly 8 GHz.

Dynamic Signal (now National Instruments) | 800-982-4064 | Medfield, MA
RF connectors: BNC-SMA-SMB-F-N-UHF-MCX-TNC; Custom cable assemblies: mix and match lengths/connectors; Adapters | terminators | attenuators; Single mode & multimode fiber optic cables: LC-SC-ST-MTRJ; Bulk coax cable: RG6, RG8, RG58, RG59, RG142, RG213, RG223, RG400; cable tools & accessories.

EMC Technology Florida RF Labs |
800-544-5594 | Stuart, FL
Coax, cable, hybrid couplers, thin film resistive products.

FM Ingenierie (now Ormelabs) | +33 951486698 | France
Programmable attenuators, frequency synthesizers, RF filters, ISM-band ID systems, custom design, Smith Chart software.

Herley |
717-735-8117 | Lancaster, PA
Attenuators, modulators, power dividers, oscillators, synthesizers, phase shifters, switches.

High Sierra Microwave |
530-644-3393 | Camino, CA
Designs and builds PLL signal sources, up/down converters, low noise amplifiers, and comb marker generators (weak signal sources). Also provides RF/microwave test/measurement services, such as phase noise measurements to 40 GHz.

Hittite Microwave Corp |
978-250-3343 | Chelmsford, MA
Amplifiers, attenuators, frequency multipliers, mixers, modulators, prescalers, switches, VCOs.

Instruments for Industry (IFI) |
631-467-8400 | Ronkonkoma, NY
Amplifier configurations such as tetrode tubes, TWTs, klystrons, and solid state devices. Standard horn antennas and TEM cells.

Ion Beam Milling, Inc |
603-644-2326 | Manchester, NH
Since 1982 has manufactured thin film circuits for use in the microwave and photonics industries. Dry etch ion beam milling process to ensure a high level of repeatability. An array of standard products are ready to ship and we can create custom circuits to match your drawing. Ion Beam Milling also specializes in services. We can offer photolithography, milling, and/or dicing services to meet your needs. ISO 9001:2000 qualified.

JQL Electronics | 888-236-9828 | Rolling Meadows, IL
Manufacturer of RF and microwave devices, including filters, isolators & circulators, directional couplers, power divider/combiners, hybrid, termination and etc. Our R&D team provides outstanding services to quickly bring your product concepts into prototype, and turn the prototype into products.

Link Microtek |
44 (0)1256 355771 | Basingstoke, Hampshire, UK
Horn antennas, rotary joints, OMTs, attenuators, TEM cells, filters, couplers, transitions, millimetre wave components, adaptors, terminations and custom waveguide assemblies. DC to 40 GHz.

LUXCONN Technology | | 82-2-2026-7500 | Seoul, Korea
Manufactures RF connectors, coaxial cable, and passive components including power splitters, power dividers, directional couplers, surge arrestors, terminators, duplexers, antennas.

M/A-COM (now Cobham) | 800-366-2266 | Lowell, MA
Developer and high-volume manufacturer of RF, microwave and millimeter wave semiconductors, components and technologies including diodes, semiconductors, transistors, passives, blocks, substrates. 

Res-Net Microwave
Res-Net Microwave
Clearwater, Florida
Res-Net Microwave Chip Resistor

Res-Net Microwave Flange Termination

Complete line of precision RF & microwave components including attenuators, terminations, resistors, and diode detectors for commercial, military, and space applications. Products range from
the small flange type to large 2,000 watt connectorized power attenuators and/or terminations at frequencies up to 26.5 GHz. In-house photo etch and laser trim capability. 

Res-Net Microwave High Power Attenuation  • Attenuators: Pass-Through, SMA, N,
       Chip, & Flange Attenuators
  • Resistors: Chip & Coaxial Rod,
        Power Flange, CVD diamond
  • Terminations: Chip & Coaxial Rod,
        Conduction-Cooled, Power Flange, Stripline
Res-Net Microwave Diode Detectors  • Diode Detectors: Zero-biased Schottky,
       100 mW Input

Now offering 4-week lead times on standard products including: Attenuators, Resistors, and Terminations.

Skyworks Solutions
Skyworks Solutions
Woburn, Massachusetts

Skyworks Solutions communications building blocksSkyworks Solutions, Inc. is empowering the wireless networking revolution. Our highly innovative analog semiconductors are connecting people, places and things spanning a number of new and previously unimagined applications within the automotive, broadband, cellular infrastructure, connected home, industrial, medical, military, smartphone, tablet and wearable markets.

Broad Product Portfolio for Markets Including:

    • Automotive                • Wireless Infrastructure
      • Connected Home          • Wearables
        • Consumer Electronics     • And more!

Skyworks Engineering CareersSkyworks is Hiring!

View our current openings for SOI
and RF Design Engineers today!
Careers at Skyworks

MicroLab/FXR | microlab.fxr.com973-992-7700 | Livingston, NJ
Attenuators, bias tees, couplers, dc blocks, coaxial junctions, terminations, low pass filters, power splitters/dividers, tuners & line stretchers, waveguide dummy loads.

Micronetics (now Mercury Systems, Inc.)
603-883-2900 | Hudson, NH
Test equipment, noise sources, voltage controlled oscillators, switches, limiters, phase shifters, attenuators.

Microtech, Inc |
203-272-3234 | Cheshire, CT
Waveguide rotary joints, bends, straight, twists, adapters, couplers, horns, terminations, tees.

Microwave Resources, Inc |
909-627-4125 | Chino, CA
Amplifiers, attenuators, circulators, isolators, frequency multipliers, waveguide couplers, mixers, detectors, filters, pin switches, adapters.

Midwest Microwave (now Emerson Network Power) | 734-429-4773 | Saline, MI
Attenuators,  terminations, DC blocks, couplers, power dividers, equalizers, phase shifters, adapters, cable assemblies, connectors - SMA, BMA, N Type, 7 mm, 3.5mm, QPL/DSCC approved products, tools, gauges, guides.

718-934-4500 | Brooklyn, NY
Attenuators, baluns, bias tee, cables (test quality), chokes, DC blocks, mixers, amplifiers, filters, line stretchers, modulators, oscillators, power combiners / couplers / splitters, switches, terminations, transformers. Surface mount, connectorized. Application (app) notes.

Miteq |
631-436-7400 | Hauppauge, NY
Amplifiers, mixers, frequency multipliers, passive power components, solid-state switches, attenuators, power dividers, RF & IF signal processing components, oscillators, frequency synthesizers, integrated multifunction assemblies, fiber optic products, up/downconverters, test translators, IF/video equalizers, redundancy switchover units, video modulators and modems.

Nikkohm Co., Ltd |
+81-176-53-2105 | Misawa, Aomori, Japan
Resistors, precision thin film, precision chip, RF termination, attenuator, power, TO220, TO247, TO126, wire wound, metal housed, current detect, shunt, thermopiles.

Pasternack Enterprises, Inc |
866-727-8376 | Irvine, CA
Amplifiers to 2 GHz, attenuators 1 - 1000 W DC - 40 GHz, circulators/isolators 1 - 26.5 GHZ w/SMA connectors, combiners/dividers 2 - 12 way 1 MHz - 18 GHz, couplers  low & high power 0.5 - 18 GHz, switches manual & diode DC - 18 GHz, terminations 1/2 - 100 W DC-40 GHz, waveguide 1.70 - 40 GHz.

Peregrine Semiconductor
858-731-9400 | San Diego, CA
Fabless provider of RFICs leveraging the company's patented UltraCMOS® technology, an advanced form of SOI that enables the design, manufacture and integration of multiple RF, analog and digital functions onto a single chip.

Planar Monolithics Industries |
301-662-5019 | Frederick, MD
PMI designs, develops, manufactures, tests, and markets hybrid RF/microwave and monolithic integrated circuits (MIC/MMIC) and components hybrid MIC/MMIC supercomponents and subsystems.

RCD Radiokomunikace
+420-466-415-755 | Česká Republika
Design, manufacture, and test high-quality RF components and systems - attenuators, couplers, dividers, filters, amplifiers. Custom RF or mechanical designs including high port-to-port isolation requirements, low ohmic losses, high power, and low PIM levels. 70 MHz – 5 GHz.

Renaissance Electronics Corp |
978-772-7774 | Harvard, MA
Transmitter combiners, receiver multi-couplers, isolators, circulators, directional couplers, power dividers/combiners, terminations, DC-26.5 GHz, coaxial, multi-position, x-fer.

Res-Net Microwave | 727-536-7861 | Largo, FL
Complete line of precision RF & microwave components including attenuators, terminations, resistors, and diode detectors for commercial, military, and space applications. Products range from the small flange type to large 2,000 watt connectorized power attenuators and/or terminations at frequencies up to 26.5 GHz. In-house photo etch and laser trim capability.

Response Microwave |
978-772-3767 | Devens, MA
Manufacturer of drop-in and connectorized hybrids & couplers, combiners & dividers, filters & diplexers, isolators & circulators, coaxial & optical attenuators & adaptors, terminations, surge protection, delay lines, connectors, cable & cable assemblies, laser diodes, and custom assemblies.

RF & Connector Technology |
+82 505 274 0002 | Suwon, Kyounggi ,Korea
Coaxial connector, cable assembly & RF passive components.

RFHIC Corporation USA | | 919-342-7099 | Cary, NC
CATV hybrid line amplifiers, broadcasting amplifiers, FTTH amplifiers, digital TV application, MMIC (GaN, GaAs), high power transistors (GaN), low noise, wideband, & radar pallet amplifiers, PLLs, mixers, directional couplers.

RF-Lambda |
613-592-6858 | Canada
Couplers, circulators, isolators, mixers, attenuators, coupler, power amplifiers, LNA, VCO, switches, oscillators, connectors, adapters.

Skyworks Solutions | 781-376-3000 | Woburn, MA
RF amplifiers, attenuators, circulators, demodulators, detectors, diodes, directional couplers, FEMs, RF subsystems, isolators, mixers, modulators, optoisolators, phase shifters, PLLs-synthesizers-VCOs, & more.

Spinner |
770-263-6326 | Norcross, GA
Coaxial connectors, cable assemblies, directional couplers, phase shifters, filters, stub tuners, DC breaks, coaxial loads and attenuators, waveguide components, coaxial and waveguide switches, lightning protectors, audio/video broadcast (analog and digital) components, accessories for network analyzers including calibration kits, gauges, articulated lines, push-on connectors, connector-savers.

State of the Art |
800-458-3401 | State College, PA
Thick, thin film chip, surface mount, high reliability, 50 ohms, up to 20 GHz resistors, coplanar chip attenuators, thick film jumpers.

Suncoast Microwave, Inc |
727-573-1280 | Clearwater, FL
Quality, cost effective waveguide components including flexible, terminations, adapters, and couplers.

US Microwaves |
408-970-9680 | Santa Clara, CA
Products include attenuators, diodes, inductors, substrates, capacitors, dividers, resistors, terminations, couplers, filters, MMICs, LDOs.

Vector Telecom Pty Ltd |
+61 3 9607 8357 | Melbourne , Australia
Waveguide components and assemblies, coaxial components and antennas.

vidaRF |
877-777-8432 | Lancaster, MA
Designs and manufactures reliable and cost-effective RF | Microwave components including connectors, adapters, terminations, cable assemblies, antennas, converters (baluns), surge protectors.

Vidyut Yantra Ydyog |
91 1232 242223 | India
Manufacturer of microwave and millimeter waveguide components, antennas, & attenuators.