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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.

Please consider contacting RF Cafe advertisers first for your needs.

Attenuator Design Data

NOTICE: Most search engines do a really good job of locating useful data if your search terms are well thought out, so rather than me supposing I know what you are looking for, I have provided a Search box at the top of the page for you to use. If you are interested in advertising, please visit my Advertising information page. Thank you.

Please click here to visit the JFW website JFW Industries
Indianapolis, IN
Toll-Free: 877-887-4539

JFW attenuatorsJFW Industries is a world leader in designing and manufacturing of passive RF components and application specific test systems. These components include attenuators, RF switches, and specialized test systems for use in the cellular, telecom, OEM test JFW switch matrixequipment, medical, automotive, defense, and automated test systems markets. Application specific designs are the cornerstone of JFW's continuous technical advances in RF components.

- JFW is an ISO 9000:2000 registered company -

  • Matrix Switches
  • Power Dividers
  • Test Accessories
  • Switched/Rotary
     Attenuators
  • Programmable
     Attenuators
• RF Switches
• Variable Attenuators
• RF Fuse Holders
• RF & DC Cable
   Assemblies
• Fixed Attenuators
   & Terminations
JFW RF Conversion ToolGet JFW's
RF Conversion
Tool
All JFW test systems are available with GPIB, RS-232, Ethernet, or TTL interfaces. RoHS Compliant.
Click to visit the MECA Electronics website MECA Electronics
Denville, NJ   07834
Tel: 866-444-6322
Since 1961, MECA* has served the microwave industry specific to passive components in the DC to 20 GHz frequency range.

*Microwave Electronic Components of America

MECA Short Form Catalog MECA serves all areas of the RF/Microwave industries including world class network providers, and supporting supply chain infrastructure. We have long been the "backbone" of high performance wired and air-interfaced networks such as in-building applications, satellite communications, radar, radio communications, telemetry applications, mobile radio, aviation & air traffic communications.

Rugged & Reliable Components Since 1961
Made in the USA
   •   Power Dividers & Combiners
   • •   Directional Couplers
   • • •   3 dB Hybrid Couplers
   • • • •   Fixed Attenuators
   • • • • •   Variable Step Attenuators
   • • • • • •   Terminations & Loads  (Low PIM)
   • • • • • • •   Isolators & Circulators
   • • • • • • • •   DC Blocks & Bias Tees
   • • • • • • • • •   Adapters & Cables  (Low PIM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

American Microwave CorporationAmerican Microwave Corp
Frederick, MD
Tel: 301-662-4700
American Microwave Corporation (AMC) uses a state-of-the-art clean room to manufacture all of it's products, as well as a fully automated machine shop. AMC is a leader in the design and manufacturing of DC to 40 GHz solid state control components for commercial and military grades. ISO 9001:2000.

PIN Diode Switches
SPST through SP64T
Broadband
High Speed
High Power
Low Video Transient
PIN Diode Attenuators
Multi-Octave
Digitally Programmable
Voltage-Variable
Current Controlled
High Speed
Detector Log Video
Amps - True DC
Coupled. Wide
Bandwidths. Fast Rise
Times. Short Recovery
Times. Superior
Accuracy. Extended
Dynamic Range
Capability.
Other Capabilities
Tunnel Diode Amps
Wideband Detector-
Amplifier-Limiter Pulse
Amplitude Digitizer.
Wideband Divider-
Attenuator.

Power Dividers/Couplers: 0.5 - 18 GHz
Bias-T:  Inductive. Resistive. 15 kHz to 18 GHz
Kete Microwave RF Passive ComponentsKete Microwave
Oakland, CA
510-635-4270
Kete Microwave Electronics Co., Ltd. specializes in designing and manufacturing state of the art RF/Microwave passive components solutions.
RF/Microwave passive components solutions including isolator/circulator, RF resistors, terminations, attenuators, multilayer chip ceramic capacitors, feed-through capacitors, directional couplers, power divider/combiner,3 dB hybrid coupler, etc.
Connectorized, surface mount, drop-in, and waveguide versions available.
Product Lines Include
Kete Microwave Circulators & IsolatorsKete Microwave RF Resistors • Isolators
  • Circulators
   • Attenuators
    • RF Resistors
     • Terminations
Kete Microwave Attenuators      • Power Dividers
       • Directional Couplers
        • 3 dB Hybrid Couplers
         • High Q Ceramic Caps

Certified ISO9001-2000 and ISO 14000 Company

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Please click here to visit the Amplical websiteAmplical
Whippany, NJ
Phone: 201-919-2088

Amplical was founded by Engineers for Engineers
Amplical is determined to be a leading supplier of quality RF microwave components. Utilizing the latest in RF Microwave technology, Amplical focuses on premium quality amplifiers and attenuators at affordable prices. Amplifiers are tuned for exceptional amplitude flatness and our attenuators are designed for precision and the utmost in accuracy. Our products are typically available from stock. It is our pleasure and honor to provide you with both an exceptional product and exceptional service. GaAs technology.

       • Amplifiers - High Power, Maximally Flat
        • Attenuators - Relay, Solid State
        • Custom RF Microwave Assemblies
      • Modulators - Rack & Connectorized
     We
       believe
         that
          you
        should
       not
     have to:
...wait 3 months for your parts

...pay an arm and a leg for
    these parts

...wait for days for a quote or an
    answer to technical questions
Most Items Available from Stock
Skyworks Wireless Connectivity Products Skyworks Solutions
Woburn, MA / Worldwide
Contact Us
Skyworks product selection guides
Selection Guide
Skyworks Solutions is an innovator of high performance analog semiconductors. Leveraging core technologies, Skyworks supports automotive, broadband, wireless infrastructure, energy management, GPS, industrial, medical, military, wireless networking, smartphone, and tablet applications. See the list below for our extensive line of products for the microwave and wireless industries, or click on the Selection Guide.
Amplifiers
 • Cellular
 • WiFi Connectivity
 • Wireless Infrastructure/
    Femtocell Power Amplifiers
 • Smart Energy-Connected
    Home and Automation
 • BDS/GPS/GNSS
 • Broad Market LNAs and
 • Low Noise Transistors
 • Driver/Linear Amplifiers
 • Gain Block
 • Variable Gain Amplifiers
Attenuators
Circulators / Isolators
Front-End Modules
 • Cellular
 • WiFi Connectivity
 • Smart Energy-Connected
    Home and Automation
 • BDS/GPS/GNSS
Mixers Modulators / Demodulators
OptoCouplers OptoIsolators
PLLs/Synthesizers/VCOs
Power Management
RF Passives
Switches
Diodes
Filters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Aeroflex KDI, Inc | aeroflex.com/ams/kdi-rp/micro-kdi-rp-prods.cfm | 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 | bird-technologies.com | 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 | broadwavetechnologies.com | 317-346-6101 | Franklin, IN
Adapters, attenuators, power combiners, power dividers, power couplers, terminations, high power, 1-1500 Watts, connectors, adapters.

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

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

Corry Micronics | cormic.com | 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)
cougarcorp.com | 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)
ditf.com | 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 | dsinstruments.com | 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)
sine.ni.com/nips/cds/view/p/lang/en/nid/1485 | 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 | emc-rflabs.com | 800-544-5594 | Stuart, FL
Coax, cable, hybrid couplers, thin film resistive products.

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

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

High Sierra Microwave | hsmicrowave.com | 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 | hittite.com | 978-250-3343 | Chelmsford, MA
Amplifiers, attenuators, frequency multipliers, mixers, modulators, prescalers, switches, VCOs.

Instruments for Industry (IFI) | ifi.com | 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 | ionbeammilling.com | 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.

Link Microtek | linkmicrotek.com | 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 | luxconn.co.kr | 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)
cobham.com | 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. 

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.)
micronetics.com | 603-883-2900 | Hudson, NH
Test equipment, noise sources, voltage controlled oscillators, switches, limiters, phase shifters, attenuators.

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

Microwave Resources, Inc | microwaveresourcesinc.com | 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)
emersonnetworkpower.com/en-US/Pages/Default.aspx | 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.

Miteq | miteq.com | 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 | nikkohm.com | +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 | pasternack.com | 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.

Planar Monolithics Industries | pmi-rf.com | 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.

Renaissance Electronics Corp | rec-usa.com | 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 | res-netmicrowave.com | 727-536-7861 | Largo, FL
Manufacturer of  attenuators, RF terminations, and microwave resistors for the RF and microwave industries.

Response Microwave | responsemicrowave.com | 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 | rf-ct.com | +82 505 274 0002 | Suwon, Kyounggi ,Korea
Coaxial connector, cable assembly & RF passive components.

RFHIC Corporation USA | rfhic.com/eng | 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 | rflambda.com | 613-592-6858 | Canada
Couplers, circulators, isolators, mixers, attenuators, coupler, power amplifiers, LNA, VCO, switches, oscillators, connectors, adapters.

Spinner | spinner-group.com | 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 | resistor.com | 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 | suncoastmicrowave.com | 727-573-1280 | Clearwater, FL
Quality, cost effective waveguide components including flexible, terminations, adapters, and couplers.

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

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

vidaRF | vidarf.com | 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 | vyu-microwave.com | 91 1232 242223 | India
Manufacturer of microwave and millimeter waveguide components, antennas, & attenuators.

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