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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.
  
 
    
 
Aeroflex KDI | 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.
ConductRF | 1-978-374-6840 | Methuen, MA
RF connectors and
cables DC to 110 GHz, including RF test, internal system cables, low PIM, high
power, phase matched & more. Custom connector design capability, too. VNA cables
including TESTeCON. Formable semi-rigid and hand-formable solutions up to 60 GHz.
Flexible cables: RG & LMR, high flex double and triple shielded options. D38999
Mil Spec. Fixed attenuators. ITAR Registered.
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.
Custom
MMIC Design Services | 978-467-4290 | Westford, MA
Fabless RF and
microwave MMIC designer trusted by government and defense industry OEMs with their
biggest microwave circuit challenges to solve various size, weight, performance,
and cost (SWaP-C) challenges throughout the microwave signal chain. We also have
a line of off-the-shelf MMICs including amplifiers, mixers, attenuators, phase shifters,
and switches. Over 25 years of combined experience in designing state-of-the-art
MMIC chips for millimeter wave, point-to-point radio, VSAT, WLAN, and cellular systems
as well as general microwave applications.
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.
everything RF
| 312-436-0084
Find RF & microwave components, equipment and services -
216,401 products from over 1143 manufacturers listed in 275 categories. Download
hundreds of vendor white papers. Test equipment amplifiers, antennas, attenuators,
bias-Ts, & terminations, RF connectors & adapters, RF filters, power combiners,
couplers, & dividers, RF switches, waveguide, Bluetooth & RFID.
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.
INSTOCK Wireless
Components | 973-335-6550 | Boonton, New Jersey
Design & manufacture
2- thru 64-way RF power splitters / combiners from our Boonton, NJ, facility. N,
TNC, BNC, SMA, QMA, RP-SMA connectors. 10 MHz through 6.0 GHz. Optimized specs for
Public Safety Band, Cell, GSM 900 / 1800, PCS, UMTS, GPS, L Band, W-CDMA-3G, TETRA,
IEEE802.11 b/g, UHF RFID, ISM, Wi-Fi, WiMAX and LTE wireless. Bias T's. Customization
available. All products in stock. 5 year warranty.
Integrated Device Technology
(IDT) | 800-223-1366 | San Jose, CA
System-level solutions that
optimize applications with products in RF, timing, wireless power transfer, serial
switching, interfaces and sensing solutions are among the company's broad array
of complete mixed-signal solutions for the communications, computing, consumer,
automotive and industrial segments. These products are used for development in areas
such as 4G infrastructure, network communications, cloud datacenters and power management
for computing and mobile devices.
Innovative Power Products
(IPP) | 631-563-0088 | Holbrook, New York
RF & microwave high power,
broadband couplers, combiners, baluns, resistors, terminations and attenuators.
Product integration, custom configurations, custom resistor assemblies, contract
manufacturing, engineering design.
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
| 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.
Isotec
| 516-780-2766, USA | 82-2-2040-6176, Korea
Designs, develops and manufactures
extensive line of RF/microwave connectors, cable assemblies, attenuators, terminations,
couplers, filters, surge protectors, and LNAs. Low PIM designs available.
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.
Kete Microwave Electronics
| +86-595-22597735 | China
Ferrite RF isolator & circulators, high power
RF resistors & terminations, fixed & variable/step attenuators, multilayer
High-Q chip ceramic& feedthrough capacitor (EMI filters), directional couplers,
power dividers / combiners, 3dB hybrid couplers.
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.
Lotus Communication
Systems | 888-236-8588 | Weston, MA
RF modular system components
up to 20 GHz - amplifiers, filters, attenuators, limiters, oscillators, bias-Ts.
COTS shielded enclosures w/SMA connectors for RF / electronics prototyping. Customization
to your specification from prototype to production.
Luxconn Technology
| www.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.
MicroLab/FXR
| 973-992-7700 | 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) | 603-883-2900 | Hudson, NH
Test equipment, noise sources,
voltage controlled oscillators, switches, limiters, phase shifters, attenuators.
Microtech
| 203-272-3234 | Cheshire, CT
Waveguide rotary joints, bends, straight, twists,
adapters, couplers, horns, terminations, tees.
Microwave
Resources | 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.
Mini-Circuits
| 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
| 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.
QuinStar Technology
| 310-320-1111 | Torrance, CA
Designs and manufactures millimeter-wave products
for communication, scientific, and test applications including millimeter-wave products,
microelectronic assembly, rapid prototyping, and mass customization.
Amplifiers,
receivers,
Oscillators,
switches, attenuators, circulators & isolators, filters,
waveguide,
antennas, and
phase shifters, and
transceiver & radar subsystems are offered.
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 | YoungTon Suwon, Korea
Coaxial connectors & adapters,
cable assemblies, RF attenuators, terminations, couplers, power couplers & dividers,
DC blocks, surge arrestors, antennas.
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 Superstore
| 888-443-3427 | Denver, CO
Launched in 2017 by
the founder of Pasternack Enterprises. RF coaxial connectors & adapters, coaxial
cable & cable assemblies, surge protectors, attenuators. Items added daily.
Free shipping on orders over $99. Same day shipping on orders received by 3 PM
MT.
RF Techniques
| 408-433-1941 | San Jose, CA
High reliability brazed high power resistors, high
power attenuators and high power terminations in aluminum nitride (AlN), alumina &
beryllium oxide (BeO) substrates for the Microwaves & RF applications. 100%
manufactured in USA.
RF-Lambda
| 613-592-6858 | Canada
Couplers, circulators, isolators, mixers, attenuators,
coupler, power amplifiers, LNA, VCO, switches, oscillators, connectors, adapters.
SemiGen
| 603-624-8311 | Manchester, NH
Prototype builds and design while handling volume
production runs for the RF/microwave, military, space, homeland security, optical,
medical device, commercial-wireless markets. Manual and fully automatic assembly.
Also manufactures PIN, limiter, beam lead, and Schottky diodes, chip capacitors
and attenuators, and printed spiral inductors.
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
| 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
| www.+61 3 9607 8357 | Melbourne , Australia
Waveguide components and assemblies,
coaxial components and antennas.
vidaRF |
www.877-777-8432 | Huntersville, NC
Offering High performance isolators, circulators,
power dividers, couplers, RF connectors, adapters, custom cable assemblies, attenuators,
and terminations. Custom designs available. In-stock items shipped within 24 hours.
Vidyut Yantra
Ydyog | 91 1232 242223 | India
Manufacturer of microwave and millimeter
waveguide components, antennas, & attenuators.
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