RF Power Combiners, Couplers, Splitters & Dividers
Manufacturers & Services

These companies can supply your requirements for RF combiners, couplers, & dividers. All ranges of form factors, power handling, coupling and isolation values, connector types, and other parameters are available. Most will design and manufacture custom products to meet your needs. I of course request that you check with RF Cafe Advertisers first, out of an appreciation for their underwriting of the website.

RF power combiners and dividers are compliments of each other and can usually be used interchangeably. The power combiner takes multiple inputs and effectively algebraically adds them together at the output. The power divider splits the input into two or more branches, usually with an equal portion to each branch. Sometimes there are phase shifts deliberately inserted in one or more of the branches.

RF power couplers are reciprocal devices in that the coupled ports can be used to sample a portion of the mainline power, or they can be used to inject a signal into the main signal path. A bidirectional coupler provides a sample port in both the forward and reverse directions; they are often used to measure VSWR.

One important thing to keep in mind is that specified values for coupling 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 coupling value will be.

An online RF power couplers calculator is available here.

Aircom Microwave | 978-544-8225 | Orange, MA
Waveguide accessories, adapters, attenuators, bends, detectors, directional couplers, frequency meters, loads, phase shifters, power dividers, pressurizing components, straight sections, switches, transitions, tuners, twists.

AKON | 408-432-8039 | San Jose, CA
Microwave amplifiers 0.5 to 20.0 GHz, power dividers & gain (slope) equalizers 1.0 to 18.0 GHz, converter assemblies 2.0-20.0 GHz, filter banks and switch filter banks 2.0-18.0 GHz, discriminators.

Anaren | 800-544-2414 | East Syracuse, NY
Couplers, power dividers, quads, splitter/combiner networks, baluns, vector modulators, mixers, resistors, terminations, attenuators, circulators, isolators, delay lines, switches, ceramic circuit-board and component solutions.

ARRA | 516-231-8400 | Bay Shore, NY
Attenuators, blocks, DC couplers, dividers/combiners, filters, line stretchers, path simulators, phase shifters, shorts, RF switches, terminations, adapters, horns, waveguide.

Barth Electronics | 702-293-1576 | Boulder City, NV
Attenuators, power dividers, voltage probes, pulse generators.

BBTLine | 425-273-3712 | Kirkland, WA
Unique patented combiner / splitter design that allows for more compact devices while maintaining low insertion loss (higher RF power handling... > 20 watts as a splitter), excellent return loss and excellent amplitude/phase balance. These are not standard Wilkinson-style RF splitters.

Blueline Engineering Corp | 203-838-8296 | Norwalk, CT
RF/Microwave Components, 100 MHz-40 GHz including amplifiers, equalizers, DLVA's, SDLVA's, Log IF, integrated subassemblies, switched filters, switched multipliers, upconverters, and downconverters.

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

Cernex | 408-541-9226 | Sunnyvale, CA
Amplifiers, antennas, couplers, isolators, circulators, filters, diplexers, oscillators, noise sources, switches, phase shifters, transition & adapters, mixers, waveguide products, attenuators, terminations, detectors, subsystems.

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

Ciao Wireless | 805-389-3224 | Camarillo, CA
Broad selection of amplifiers for multi-octave, octave & ½-octave, broadband, LNAs, and RF limiting. Replacement amplifiers for anything previously or currently made by JCA Technology, Cougar (connectorized versions), Avantek, WJ, CTT, Celeritek, Amplica, among others, but at a much quicker delivery. Also manufacture radial combiners and space qualified filters. Environmental screening services available.

Clear Microwave | 610-844-6421 | Malvern, PA |
N-way dividers/combiners (reactive & resistive), high power combiners, directional couplers, 90° & 180° 3 dB hybrids couplers, RF switches, phase shifters, limiters, detectors, bias Tees, DC blocks.

Connecticut Microwave | 203-250-9678 | Cheshire, CT
Directional couplers, circulators, terminations, filters, coaxial & waveguide adapters, diodes, detectors.

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.

Credowan | +44 (0) 1243 670711 | UK
Manufacturer and supplier of microwave equipment including waveguides, couplers, diplexers, anechoic chambers, antenna rotary joints, antenna, radar & satellite communications subsystems & components for commercial and military applications.

Custom Microwave Components | 510-651-3434 | Fremont, CA
RF & microwave PIN diode & GaAs FET switches, switch matrices, switch/filter matrices, analog & digital attenuators and phase shifters, limiters, power dividers/combiners, couplers, fixed & variable equalizers.

DEV Systemtechnik | +49 6031 6975 100 | Cologne, Germany
RF transmission and switching equipment including distributing and combining matrices, redundancy switching systems, RF-over-fiber and routing products, multiplexers, distribution amplifiers, splitters, and combiners, broadband active and passive products.

Electromagnetic Technologies Industries (ETI) | 973-394-1719 | Boonton, NJ
Unique technological breakthroughs in defense and telecommunications systems in antenna beam former networks and MMICs as well as power dividers, active & passive phase shifters, directional couplers, switching & distributed networks, mixer & modulating devices, filters & multiplexers and other components.

Electro-Photonics | 772-485-0927 | Palm City, FL
Global supplier of RF & Microwave components including SMT hybrid and directional couplers, wire bondable passive components. Very useful test boards for evaluating components saves valuable design and characterization time.

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.

Filtel | 450-455-6082 | Canada
Couplers, power dividers, isolators, coaxial & waveguide circulators.

G.T. Microwave | 973-361-5700 | Randolph, NJ
Attenuators, switches, phase shifters, vector, pulse, BPSK, QPSK modulators, power dividers\combiners, directional couplers & detectors, negative\positive gain equalizers, low, high & bandpass filters, 90° & 180° quadrature hybrids, engineering consulting services, frequency discriminators, oscillators, RF subsystems.

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

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.

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.

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.

Jampro Antennas - RF Systems | 916-383-1177 | Sacramento, CA
Broadcast systems at a reasonable price, supplier of antennas, combiners & filters and RF components for every application in the broadcast industry from analog to FM, HD and DTV/DVB applications.

Johanson Technology | 805-389-1166 | Camarillo, CA
LTCC chip antennas for Bluetooth, WLAN, 2.45 GHz ISM band, ceramic filters, diplexers, baluns, inductors, capacitors, couplers, laser trim, JTIsoft^® modeling software.

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.

KR Electronics | 732-636-1900 | Avenel, NJ
All standard filter types - lowpass, highpass, bandpass, bandstop, equalizers, diplexers, duplexers, notch - and individually synthesized filters for special applications. State of the art computer synthesis, analysis and test methods are used to meet the most challenging specifications for military, commercial, medical, communication, radar, positive train control (PTC), and navigation.

Krytar | 877-734-5999 | Sunnyvale, CA
Couplers, combiners, hybrids, detectors, terminations, power meters & power sensors.

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.

Marki Microwave | 408-778-4200 | Morgan Hill, CA
Amplifiers, converters, couplers, DC blocks, dividers, doublers, fiber-optic devices, mixers, waveguide.

Maury Microwave | 909-987-4715 | Ontario, CA
Adapters, ATE, cable assemblies, connectors, noise sources, terminations, test equipment, tuners, waveguide.

MCLI | 800-333-6254 | St. Petersburg, FL
Power dividers, couplers, isolators, circulators, waveguide components, oscillators, filters, hybrids, attenuators, switches, terminations, amplifiers.

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 Components and Systems | 508-480-0106 | Marlboro, MA
Produces a wide range of standard and custom waveguide and coaxial components and systems including power combiners, filters, multiplexers, pressure windows, terminations, couplers, hybrids & transitions; custom designs, small quantities available, quick delivery.

Microwave Devices | 888-736-8837 | Franklin, IN
Attenuators, terminators, directional couplers, filters, isolators/circulators, cable assemblies, measurement equipment.

Mid-Atlantic RF Systems | 410-893-2430 | Forest Hill, MD
Hybrid, directional couplers, switches, RF power dividers, RF amplifiers, synthesizers, distribution assembly, contract RF assembly. 

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 | 31-436-7400 | Hauppauge, NY
Amplifiers, mixers, frequency multipliers, passive power components, solid-state switches, attenuators, power dividers, RF and 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. 

NTK Technologies | 408-727-5180 | Santa Clara, CA
Packages - LTCC, LCC, CPGA, AlN, CGFP, FP, side braze hybrid, thin film, flip chip, organic flip chip, microwave. Ceramic directional couplers, filters, diplexers, antennas, switch modules, resonators and ultrasonic sensors.

Nanowave | +82-43-903-4828 | South Korea
SMD, drop-in, coaxial, waveguide isolators, circulators, directional, hybrid couplers, 2way, 3way, 4way dividers, attenuators, terminations.

Nortec RF | 856-793-9255 | Mount Laurel, NJ
RF/microwave power combiners/dividers, unidirectional and bidirectional couplers, hybrid couplers, filters, and power amplifiers. New products added on regular basis.

Panasonic | 201-348-7000 | Secaucus, NJ
Surface mount capacitors, directional couplers, antenna switches, SAW filters, attenuators, power dividers, duplexers, transformers, inductors, coils, batteries.

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.

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.

Princeton Microwave Technology, Inc | 609-586-8140 | Mercerville, NJ
Manufacturer of high quality oscillators and amplifiers for the military and telecommunications markets - DRO, PLDRO, coaxial resonator oscillators, Military | Satcom amplifiers, power dividers, PHASE NOISE MEASUREMENT SYSTEM, phase shifters, phase locked YIG frequency synthesizers.

Pulse Research Lab | 310-515-5330 | Torrance, CA
Coupling and termination modules, RF power dividers & splitters, clock sources, RF switches & scanners.

Quasar Microwave Technology (now The Waveguide Solution) | +44 (0) 1626 835255 | UK
Flexible twistable and rigid waveguides, flanges, pressure windows, power splitters, hot stand-by couplers, filters, diplexers.

Radiall | 203-380-9800 | Stratford, CT
Antennas, attenuators, couplers, DC blocks, detectors, fiber optic components, phase shifters, surge protectors, terminations, coaxial adapters, connectors, switches.

Raditek | 408-266-7404 | San Jose, CA
Isolators, circulators, oscillators, synthesizers, couplers, splitters, combiners, hybrids, adaptors, cable assemblies, connectors, terminations, attenuators, bias tee's, lightning protectors.

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 | 978-772-7774 | Harvard, MA
Manufacturer of RF & microwave sub-systems  and components including isolators & circulators, dividers & combiners, waveguide components, coaxial RF switches, switch matrices, base station equipment.

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 & Noise Components Ltd | +44 (0) 5601 06 69 30 | Southend-on-Sea, Essex, UK
Design & manufacturer of RF & microwave components including circulators, isolators, combiners, couplers, dividers and power monitors. Specialising in custom designs to meet individual customer requirements. ISO9001:2008 Approved.

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.

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

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 Power Components (now Anaren) | 800-544-2414 | East Syracuse, NY
Couplers, power dividers, quads, splitter/combiner networks, baluns, vector modulators, mixers, resistors, terminations, attenuators, circulators, isolators, switches, ceramic circuit-board and component solutions.

RF Power Systems | 623-376-7720 | Peoria, AZ
Impedance matching transformers, splitters and combiners for RF amplifiers. We fill orders of all sizes using the finest materials and workmanship. We can also fill special orders to customer specifications.

RLC Electronics | 914-241-1334 | Mount Kisco, NY
Filters, couplers, coaxial switches, attenuators, power dividers, terminations, bias tees, DC blocks.

Sage Labs - Filtronic (now Spectrum Microwave, now API Technologies Corp) | 508-653 0844 | Natick, MA
Power dividers, couplers, hybrids, filters, rotary joints, mixers, phase shifters including Wireline and Wirepac products.

SHF Communication Technologies | +49-30-772-051-23 | Germany
Adapters - 3.5mm, 2.4mm, 2.92mm, 1.85mm, amplifiers (DC to > 50 GHz), connectors - 1.85mm, 2.92mm, optical transmitters, receivers, phase shifters, test equipment pattern generators, error analyzer, multiplexer, demultiplexer, clock recovery, bias tees, DC blocks, monitor tee, power dividers.

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

Synergy Microwave | 973-881-8800 | Paterson, NJ
Attenuators, switches, couplers, DC block, demodulators, filters, frequency synthesizers, SAW oscillators, mixers, phase shifters, power dividers, transformers, VCOs, test fixtures.

Taylor Microwave | 973-890-7763 | Clifton, NJ
Attenuators, directional couplers, bias tees, DC blocks, hybrids, power dividers, PIN diode switches, phase shifters, oscillators, integrated sub-assemblies.

TELSA | +390354876000 | Osio sotto (BG) Italy
Basestation antennas, combiners, couplers, circulators, filters, duplexers, power splitters and components for the air traffic control, private mobile radio, cellular, wireless communications and tactical markets.

US Microwaves | 408-970-9680 | Santa Clara, CA
Supplies custom and standard microwave thin film circuits, thin film components and semiconductors for analog and digital multi-chip module circuits, medical, military and commercial RF & microwave, fiber optic and optoelectronics, satellite, video and wireless communication applications.

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

vidaRF | www.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.

Waveline | 973-226-9100 | Fairfield, NJ
RF & microwave solid state and waveguide components - PIN diode components, switches, analog and digital attenuators & phase shifters, custom subassemblies, couplers, dividers, combiners, modulator.

Werbel Microwave | 973-900-2480 Livingston, New Jersey
RF and microwave passive components that operate up to 18 GHz. Products and designs are for the commercial wireless industry, featuring power dividers & combiners, directional and hybrid couplers, bias Ts, and resistive dividers.

Werlatone | 914-279-6187 | Brewster, NY
Directional couplers, combiners, dividers, transformers.

Wisewave Technologies (now Ducommun Technologies) | 310-513-7200Carson, CA
Amplifiers, antennas, attenuators, PIN diode switches, phase shifters, isolators/circulators, frequency converters, oscillators, couplers, magic tees, coax power dividers, bandpass, low pass, high pass filters, waveguide diplexers,  transitions, waveguide to coax adapters, waveguide components, integrated assemblies.

Woken Technology | +886-3-397-9900 | Taiwan
2.4 GHz embedded dipole antenna, 433 MHz & 2.4 GHz indoor dipole antennas, coaxial cable assemblies, flexible & semi-rigid, coaxial connectors to volume OEM manufacturers. SMA, SMB, MMCX, MCX, SSMT, N, TNC-series, BNC, Mini-UHF, FME, reverse-BNC, Reverse-TNC, Reverse-SMA, reverse-MMCX, SMA, N, BNC, F, UHF, mini UHF series adapters, BNC termination, F termination & fixed attenuators.