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
I provide an online attenuator calculator
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RF and microwave filters
for commercial and
|Innovative Power Products has more than 30 years of experience designing and manufacturing
RF Passive Components. Our couplers, combiners, baluns, resistors, and terminations
incorporate the latest technology in materials available, which equates to unrivaled
◊ 30 MHz to 6 GHz
◊ Power up to 1 kW CW
◊ 20 MHz to 6 GHz
◊ Power up to 1
◊ 20 MHz to 6 GHz
◊ Power up to 2 kW
◊ DC to 6 GHz
◊ Power up to 800 W
|If you are looking for something that is not posted on our site, please use our
Contact Us form
to let us know your specific needs. A representative will contact you to discuss your requirements
and help your choose the right product for your application.
|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.
SPST through SP64T
Low Video Transient
- True DC
Bandwidths. Fast Rise
Times. Short Recovery
Tunnel Diode Amps
Power Dividers/Couplers: 0.5 - 18 GHz
Inductive. Resistive. 15 kHz to 18 GHz
Great Neck, NY
|Since our inception in 1996 in Korea, ISOTEC has been a leading manufacturer of RF and
Microwave Connectors such as SMA, MCX, SSMB, Low PIM, N, 7/16 type, etc., and RF Components
such as Attenuators, Terminations, Power Dividers and more, for wireless service providers,
and other RF systems designers.
|We provide recognized and trusted products and service to our customers in more than 60
countries worldwide. ISOTEC offers also an extensive product mix with RF Filters and
Multiplexers and others.
|ISOTEC is ISO-9001 and ISO-14001 registered.
| RF Connectors:
SMA, MCX, MMCX, SMB, BNC, TNC, SSMB
QMA, SMP,LOW PIM N and 7/16
| RF Components:
Attenuators, Terminations, Power Dividers,
Directional Couplers, Arrestors, LNAs, etc.
Between-series and within-series adaptors
Coaxial Cable Assemblies:
Semi-Rigid, Semi-Flexible, Flexible
| RF Filters:
Cavity, LC Filters, and Multiplexers
Aeroflex KDI, Inc
aeroflex.com/ams/kdi-rp/micro-kdi-rp-prods.cfm | 973-887-5700 | Whippany,
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
low power, DC - 3 GHz, fixed, broadcast, wireless, filters, miniature coaxial couplers, combiner/divider 50
Ohm selector switches.
broadwavetechnologies.com | 317-346-6101 | Franklin, IN
attenuators, power combiners, power dividers, power couplers, terminations, high power, 1-1500 Watts, connectors,
Channel Microwave (now Smiths Microwave)
channelmicrowave.com | 805-482-7280 | Camarillo,
Coaxial and waveguide isolators, circulators, ISO-adapters, integrated assemblies, filters, terminations.
ceiswitches.com | 727-549-8999 | Largo, FL
switches, attenuators, couplers terminations, isolators, circulators, power dividers.
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,
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,
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.
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
emc-rflabs.com | 800-544-5594 | Stuart, FL
cable, hybrid couplers, thin film resistive products.
FM Ingenierie (now Ormelabs)
ormelabs.com/fr | +33 951486698 | France
attenuators, frequency synthesizers, RF filters, ISM-band ID systems, custom design, Smith Chart software.
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
frequency multipliers, mixers, modulators, prescalers, switches, VCOs.
Instruments for Industry (IFI)
ifi.com | 631-467-8400 | Ronkonkoma, NY
configurations such as tetrode tubes, TWTs, klystrons, and solid state devices. Standard horn antennas and
Ion Beam Milling, Inc
ionbeammilling.com | 603-644-2326 | Manchester, NH
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.
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.co.kr | 82-2-2026-7500 | Seoul, Korea
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
and high-volume manufacturer of RF, microwave and millimeter wave semiconductors, components and technologies
including diodes, semiconductors, transistors, passives, blocks, substrates.
PMI's organization has been setup to Design, Develop, Manufacture, Test, and Market complex
state-of-the-art Hybrid RF MIC and MMIC Components, Supercomponents, and Subsystems.
products for applications in space, military, commercial,
and consumer electronics systems. DC to 40 GHz.
from PMI's Extensive Line
LNA, VGA, Cryogenic
• Phase Shifters
• Switch Products
• VCOs & DTOs
• Multifunction Modules
• Integrated Modules
LP, HP, BP, BR,
• I/Q Modulators
• Bi-phase Modulators
• Power Dividers
• Quad Couplers
• DLVAs & SDLVAs
to Your Specifications
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.
• WiFi Connectivity
• Wireless Infrastructure/
• Smart Energy-Connected
Home and Automation
• Broad Market LNAs and
• Low Noise Transistors
• Gain Block
• Variable Gain Amplifiers
• WiFi Connectivity
• Smart Energy-Connected
Home and Automation
Modulators / Demodulators
|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
• RF Resistors
• Power Dividers
• Directional Couplers
• 3 dB Hybrid Couplers
• High Q Ceramic Caps
|Certified ISO9001-2000 and ISO
specializes in high quality, high frequency microwave communication components up to 60 GHz. As a pioneer supplier
of microwave RF components, the main products include directional couplers, bias tees networks, power dividers/combiners,
3 dB hybrids 90° and 180°, microwave mixers, frequency doublers, load terminations, and coaxial connectors and adapters.
components IN STOCK are
available for same day delivery.
|RF / Microwave Components
| • Power Dividers
• Directional Couplers
• Hybrids 90, 180 Degree
• Bias Tees
Coaxial Adapters &
| Additional capabilities: Pin Diode Switches,
Phase Shifters (Analog & Digital), I/Q Modulators,
(Analog & Digital)
|Custom and optimized designs are
available upon customer
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.com | 203-272-3234 | Cheshire, CT
joints, bends, straight, twists, adapters, couplers, horns, terminations, tees.
Microwave Resources, Inc
microwaveresourcesinc.com | 909-627-4125 | Chino, CA
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.
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
Nikkohm Co., Ltd
nikkohm.com | +81-176-53-2105 | Misawa, Aomori, Japan
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
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
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
combiners, receiver multi-couplers, isolators, circulators, directional couplers, power dividers/combiners,
terminations, DC-26.5 GHz, coaxial, multi-position, x-fer.
res-netmicrowave.com | 727-536-7861 | Largo, FL
attenuators, RF terminations, and microwave resistors for the RF and microwave industries.
responsemicrowave.com | 978-772-3767 | Devens, MA
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
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.
rflambda.com | 613-592-6858 | Canada
Couplers, circulators, isolators,
mixers, attenuators, coupler, power amplifiers, LNA, VCO, switches, oscillators, connectors, adapters.
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
Suncoast Microwave, Inc
suncoastmicrowave.com | 727-573-1280 | Clearwater, FL
cost effective waveguide components including flexible, terminations, adapters, and couplers.
usmicrowaves.com | 408-970-9680 | Santa Clara, CA
attenuators, diodes, inductors, substrates, capacitors, dividers, resistors, terminations, couplers, filters,
Vector Telecom Pty Ltd
vectortele.com | +61 3 9607 8357 | Melbourne , Australia
Waveguide components and assemblies, coaxial components and antennas.
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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