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

everything RFThe 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
Vendor pages list only those companies that actually manufacture products or provide services indicated by the page title. Doing so avoids clutter and maximizes a visitor's likelihood of success in achieving his goal.   - Please click here if you are interested in advertising.
Anatech Electronics
RF and microwave filters
for commercial and
defense applications
Anatech Electronics designs and manufactures the industry's widest range of RF and microwave filters at frequencies up to 40 GHz, as well as power dividers, directional couplers, and many other product types. We specialize in standard and custom designs for commercial wireless, public safety, satcom, and defense applications, and we can meet stringent military environmental specifications.

Anatech Electornics FilterContact us with your
custom requirements!

    973-772-4242
anatechelectronics.com


Check out our product capabilities
   Bandpass Filters
   Lowpass Filters
   Highpass Filters
   Duplexers
   Triplexers
Multiband Multiplexers
Power Dividers
Directional Couplers
Attenuators
Terminations

Buy standard models fast... online.
ISO-9001-2000 logoWe have hundreds of standard products available for immediate delivery at our Web store.

Check them out at AMCrf.com!


DYNE-TECHDYNE-TECH
Cheonan City, S. Korea
82-41-554-0010
DYNE-TECH manufactures RF & microwave components and subsystems for military and commercial telecommunications systems. Our products benefit from application of experience gained on government and university research programs. This has built our reputation as a reliable supplier of stable, quality components. We specialize in large volume production.
DYNE-TECH's Product Line Includes:
DYNE-TECH filters, diplexers,triplexersFilters,
Diplexers,
Triplexers

• Connectorized & SM
• Cellular, broadcast, &
   custom bands

DYNE-TECH terminationsTerminations
• DC - 6 GHz
•  Up to 1 W

DYNE-TECH couplersCouplers
• Connectorized
• Up to 50 W
• 100 MHz - 3 GHz
DYNE-TECH combiners, dividersCombiners,
Dividers

• Up to 8-way,
• 130 MHz - 10.5 GHz
• Up to 250 W

DYNE-TECH connectors, adaptersConnectors,
Adapters

• DC - 18 GHz
• N, SMA, BNC, TNC, F

DYNE-TECH lightning arrestersLightning
Arresters

• DC - 2.5 GHz
Contact Us for Your Custom Specifications

Fairview Microwave
Fairview, TX
Tel: 800-715-4396
Fax: 972-984-1218
We are a "value added" distributor of RF, Microwave, Wireless & Fiber Optic passive coaxial components - compliance screening available.
RoHS Compliant Products Available
BNC, BMA, HN, MCX, MMCX, N, SMA, SMP, SSMC, SSMA, SC, TNC, 1.85/2.4/2.92/3.5mm, APC7, 7/16, HN, QMA, ZMA, FME, RCA, QuickMate, UHF
               
• Attenuators • Couplers • Dust Caps • DC Blocks
• Tools • 90° Hybrids • Adapters • Terminations
• Waveguide • Connectors • Bias "T"s • Isolators

SMA cables, RF cables, & Microwave Cables in various lengths and types are available.
Crimp Tools   Calibration Kits
Torque Wrenches
Connector Assembly Tools

Get bargain pricing on our Clearance Sale items!



Please click here to visit the Jyebao website.JYEBAO Co., Ltd
Taiwan
Tel: +886 02 29029282
JyeBao is a connector, cable, cable assembly and passive components manufacturer. Synergies and large stock keep lead times to a minimum and allow us to offer customers an unparalleled flexibility. Innovation is pivotal and we are constantly developing new products.
Products Include
RF Connectors- SMA, K, SMB, SMC, MMCX, MCX, BNC, BMA, BMC, C, FME, HN, MHV, N, SC, SHV, Snap on, SMP, SSMB, TNC, TRB/BNC, UHF Jyebao connectors

Jyebao cable

Jyebao components

 New: VNA
 cable sets.
RF Adapters - Over 400 Types
RF Cable - Semi-rigid. Hand bendable. JBY low loss (to 6 GHz). Low loss (to 18 GHz). Triax, Twinax, RG. Halogen free. Japanese type.
RF Cable Assemblies - Flexible RG, Semi-rigid. Delay lines. Low loss, Ø-matched assemblies to 40 GHz.
RF Components - Fixed attenuators, Matching pads, Dividers / combiners, DC blocks, Feed through & high power terminations, Dipole antennas.
RF Test Cables - Low loss precision cables for lab use. DC to 18/40 GHz.

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

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

Click to visit Coaxial DynamicsCoaxial Dynamics
Middleburg Heights, OH
Tel: 1-800-COAXIAL

Coaxial Dynamics has been a leading manufacturer of precision equipment for the measurement and termination of RF power for over 30 years. Our equipment is used by engineers and technicians in a wide variety of applications throughout the world. We have sales offices all over the world to serve your needs.
Our Products and Solutions Include
Digital Broadcast Equipment - Wattchman RF
   monitor, high power meters, plug-in elements
Directional Wattmeters - Average & peak
   power, Field strength meters
Line Sections & Elements - 7/8" to 6-1/8"
Plug-In Elements - 7/8" to 6-1/8"
Loads & Attenuators - Dry, liquid, air, and
   forced air cooled, coaxial
Signal Samplers - Tap-offs, x-Tractors
Meters - Portable & panel mount
Accessories - Quick-match, coupling kits
Low Pass Filters - 100W and 200 W
Power Sensors - Mainline, wideband
Custom OEM Products - Send us your specs
Online Price Quotes Available

Please click here to visit theCross RF website.Cross RF
Tustin, CA
310-929-7002

Headquartered in Orange County, California, Cross RF is a leading manufacture of RF & Microwave Interconnect Solutions. From off-the-shelf connectors to thousands of custom cable assemblies, Cross RF offers the fast turnaround RF Solutions - connectors, adapters, cable assemblies and more.

Visit our web catalog at www.crossrf.com.

Attenuators - Terminations - Connectors

Adapters - Cable Assemblies - Coaxial Cables


Available interfaces: 7/16 - BNC - MCX - MMCX
 SMA - SMB - SMC - SMP - TNC - Type F - Type N
 SMZ - SSMA - SSMB - SSMC - 3.5mm- 2.4mm
 2.92mm/K - BMA - Cable Terminators

Available cables: RG58, RG59, RG174, RG178, RG179, RG188, RG213, RG214, RG223, RG316, RG316 double shield, RG400, RG402, RG450,Times LMR® series, Semi-Flexible, Semi-Rigid, U.FL/I-PEX and MHF, Multi-flex, Spiral Strip, Low Loss, and Mini-Coax.

We carry 50 Ω, 75 Ω, Amphenol, AEP, Tyco replacements, and In-Series and Between-Series adapters.

Please click here to visit the Dow-Key Microwave websiteDow-Key Microwave
Ventura, CA
Tel: 805-650-0260
 Dow-Key Microwave Corporation is the world's
 largest manufacturer of electro-mechanical RF
 switches. We are AS9100/ISO-9001 certified
 and committed to providing unparalleled
 customer service, competitive pricing, on-time
 delivery and switch products that are
 distinguished by quality and reliability.
red line
  Dow-Key offers the largest switch product line in
 the world with over 10,000 unique configurations.

Our Products Include:

  • Coaxial Switches - SPDT, DPDT, Transfer,
                   Manual, Fail-Safe, NO, Multi-Position
  • Electro-Mechanical   &   Solid State
     Switch Matrices - Multi-Pole, Multi-Throw
  • Fiber Optics Matrices - 8x14, 14x15
  • Programmable Attenuators - Up to 127 dB
                                                  30 - 3000 MHz
  • Programmable Delay Lines - 10 ps Step
  • Space Qualified Switches - 2/3 Switch,
                     SPDT, DPDT, Transfer, High Power
  • Waveguide Switches - SPDT, DPDT, X-fer
red line
For our latest specials, please check our
Excess Inventory & Out the Door in 24
red line
View Dow-Key's Catalogs


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.

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.

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.

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.


Please click here to visit the Planar Monolothics Industries websitePlanar Monolothics
Industries

Frederick, MD
(301) 662-5019
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.
PMI - LNAPMI - subsystemUnique products for applications in space, military, commercial, PMI - limitertelecommunications, and consumer electronics systems. DC- 40 GHz.
ISO 9001:2008
Select from PMI's Extensive Line
• Amplifiers
    LNA, VGA, Cryogenic
    Waveguide, Limiting
• Phase Shifters
    Analog, Digital• Detectors
• Switch Products
• VCOs & DTOs
• Multifunction Modules
• Integrated Modules
• Limiters
• Filters
    LP, HP, BP, BR,
    lumped, combline,
    switched
• Attenuators
• I/Q Modulators
• Bi-phase Modulators
• Power Dividers
• Quad Couplers
• DLVAs & SDLVAs
Custom Design to Your Specifications



Please click here to visit the Isotec websiteISOTEC
Great Neck, NY
Phone: 516-780-2766
Fax: 718-321-9121
Since our inception in 1996 in Korea, ISOTEC has been a leading manufacturer of RF and Microwave Connectors such as SMA, MCX, SSMB, etc., and RF Components such as Attenuators, Terminations, etc., for wireless service providers, etc.
We provide recognized and trusted products and service to our customers in more than 30 countries worldwide. ISOTEC offers also an extensive product mix with RF Filters and Multiplexers etc. ISOTEC is ISO9000 and ISO14000 certified factory.

ISOTEC is ISO-9001 and ISO-14001 registered.
 RF Connectors:
       SMA, MCX, MMCX, SMB, BNC, TNC, N,
       SSMB, SSMC, QMA, SMP, etc.
 RF Components:
      Attenuators, Terminations, Power Dividers,
      Power Combiners
 RF Cable Adaptors:
      Between-series and within-series adaptors
 RF Coaxial Cable Assemblies:
      Semi-Rigid, Semi-Flexible, Flexible Cables
 RF Filters:
      Cavity, Ceramic, and LC Filters, Multiplexers


Click here to visit the Pulsar Microwave websitePulsar Microwave Corp.
Clifton, NJ
Tel: (973) 779-6262
Pulsar Microwave is celebrating its 26th anniversary as a valued supplier of passive microwave components covering the frequency range of 10 kHz to 40 GHz with both narrow band and ultra-broadband products for the wireless communications markets.  ISO and RoHS.

We Specialize in Custom Requirements

Power Dividers/Combiners - 2-32 Way, Low /
 High Power to 40 GHz. SMT & Connectorized.
Directional Couplers - Low and High Power to
 18 GHz, 2500 watts. SMT and Connectorized.
Attenuators - Pin Diode, Voltage/Current
 Controlled and Digital Controlled to 16 GHz.
Switches - Absorpt./Reflect., SP1T-8T to 18 GHz.
90° & 180° Hybrids - 10% BW, 2:1 to 4:1,
 2:1 to 6:1, 5:1 to 125:1, 3 & 4 Port, to 20 GHz.
Phase Shifters - Analog (Narrow, Octave) and
 Switched Bit Digital, to 4 GHz.
Mixers - High IP3, DC/AC Coupled, to 7 GHz.
 High Frequency to 18 GHz. SMT & Connectorized.
I & Q Networks - Modulators, Demodulators,
 and Image Reject Mixers, to 16 GHz.
Bias Tees - 0.01 to 40 GHz. SMT & Connector.
Frequency Doublers - 0.2-6000 MHz. SMT &
     Connectorized.
DC Blocks - To 18 GHz, SMT & Connectorized.

Please click here to visit the SigaTek websiteSigaTek
Wayne, NJ
973-706-8475


SigaTek microwave 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.

   All microwave components IN STOCK are
   available for same day delivery.
RF / Microwave Components
      • Power Dividers
          • Directional Couplers
              • Hybrids 90, 180 Degree
                  • Bias Tees
                  • Microwave Mixers
              • Frequency Doublers
          • Loads Terminations
      • Coaxial Adapters & Coaxial Connectors 
 Additional capabilities: Pin Diode Switches,
   Phase Shifters (Analog & Digital), I/Q Modulators,
   Attenuators (Analog & Digital)

Custom and optimized designs are
available upon customer request

Vector TelecomVector Telecom
Melbourne, Australia
sales@vectortele.com
VECTOR TELECOM has fully instrumented microwave, millimeterwave, & antenna laboratories and production facilities. Our professional engineers have backgrounds from telecommunications, electronics, space and aviation industries. Frequencies up to 50 GHz, at global competitive prices. Custom designs available. TQM / ISO 9001:2000 certification.
Waveguide Components
Sections
» Straight  » Bend
» Twist      » Transition
» Magic Hybrid Tee
» WG to Coax Adapter
Attenuators
» Fixed      » Variable
Rotary Joints
» Single, Dual-Channel
Functions
» Combiner/Divider
» Circulator  » Isolator
Directional Couplers
» Crossguide
» Broadwall
Terminations
» Low, Med, High Power
» Short Circuit
Coaxial Components
» Termination » Fixed Attenuator
Microwave & Millimeterwave Antennas
» Standard Gain Horn
» Wideband Horn
» Omni-Directional
» Helical

Please click here to visit the Wenteq Microwave websiteWenteq Microwave
Duarte, CA
Tel:  626-305-6666

We provide a wide range of high quality RF and microwave products with quick delivery time at very competitive low prices. Our products include coaxial connectors and adapters, circulators, isolators, low noise amplifiers, power amplifiers, broadband amplifiers, terminations and more, covering the frequency range of 100 MHz to 110 GHz.
Products
• Coaxial High Power Attenuators & Terminations
 • High Power Waveguide Terminations
  • RF/Microwave Isolators and Circulators
   • SMA Connectors & RPSMA Connectors
    • High Power Waveguide Terminations
     • Low Noise & Power Amplifiers
      • Subsystems & Frequency Converters
       • Waveguide Switches, Couplers, more

Services
We also provide technical consulting services and engineering contracts which include antenna design, electromagnetic structural analysis, and low cost manufacturing of RF/microwave circuits and systems. We can custom design our products for your systems and/or make them integrated parts of your products for low cost production.

WokenWOKEN Technology
USA: +1-408-490-0800
Taiwan: +886-3-397-9900
China: +86-21-5425-5900
Established in November 1999, WOKEN is a Taiwan-based company that specializes in Microwave/RF coaxial connectors, cables, cable assemblies, Microwave/RF antennas and RF accessories. With the experienced R&D engineers & technicians, active marketing staff, up-to-date production equipment and measuring instruments, WOKEN designs its own RF / Microwave products for meeting all kinds of requirements demanded by its customers at communication markets.
- Attenuator: Fixed, Manual, USB Programmable
Calibration Kit: Open, Short, Load, Thru,
                         Torque Wrenches
Coaxial Switch: DPDT, SPDT, SP3T/4T/6T/8T,
                          USB Programmable
                          Ultra Flexible up to 60 GHz
Coaxial / Waveguide Adapter : SMA, N, Q, K,
                                                V, up to 60 GHz
- Filter / Diplexers: GSM, GPCS, UMTS,
                             WCDMA, LTE
- Isolator/Circulator: Coaxial, Waveguide, Drop-In
Power Divider / Combiner: Resistive, Isolated
RF Components: Bias T, DC Block, Waveguide,
                           Matching Pad, Phase Shifter
RF Testing Cable: Mini Coaxial, Flexible,
- Testing: Probe, DC-20 GHz Universal Fixtures

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, 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.

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.

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.

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
Manufacturer of  attenuators, RF terminations, and microwave resistors for the RF and microwave industries.

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.

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.

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

Smith Chart™ for Excel
Smith Chart™ for Visio
RF & EE Symbols Word
RF Stencils for Visio

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