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
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
RF power couplers calculator is available here.
| 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.
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,
| 702-293-1576 | Boulder City, NV
Attenuators, power dividers, voltage probes, pulse
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. RF design services available.
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.
| 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.
| 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.
Microwave | 203-250-9678 | Cheshire, CT
Directional couplers, circulators,
terminations, filters, coaxial & waveguide adapters, diodes, detectors.
| 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.
+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.
| +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.
Industries (ETI) | 973-394-1719 | Boonton, NJ
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.
| 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.
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
Couplers, power dividers, isolators, coaxial & waveguide circulators.
| 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,
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.
| 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.
| 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.
| 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.
| 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
Krytar | 877-734-5999
| Sunnyvale, CA
Couplers, combiners, hybrids, detectors, terminations, power meters &
| 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.
| 408-778-4200 | Morgan Hill, CA
Amplifiers, converters, couplers, DC blocks, dividers,
doublers, fiber-optic devices, mixers, waveguide.
| 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.
| 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.
Mercury Systems) | 603-883-2900 | Hudson, NH
Test equipment, noise sources, voltage
controlled oscillators, switches, limiters, phase shifters, attenuators.
| 203-272-3234 | Cheshire, CT
Waveguide rotary joints, bends, straight, twists, adapters,
couplers, horns, terminations, tees.
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.
| 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.
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.
| 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.
| +82-43-903-4828 | South Korea
SMD, drop-in, coaxial, waveguide isolators, circulators,
directional, hybrid couplers, 2way, 3way, 4way dividers, attenuators, terminations.
| 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.
| 201-348-7000 | Secaucus, NJ
Surface mount capacitors, directional couplers, antenna
switches, SAW filters, attenuators, power dividers, duplexers, transformers, inductors,
| 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.
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.
Technology (now The Waveguide Solution) | +44 (0) 1626 835255 | UK
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,
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.
+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.
| 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.
| 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.
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.
| 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
dividers, couplers, hybrids, filters, rotary joints, mixers, phase shifters including
Wireline and Wirepac products.
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
| 727-573-1280 | Clearwater, FL
Quality, cost effective waveguide components including
flexible, terminations, adapters, and couplers.
| 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.
| 973-890-7763 | Clifton, NJ
Attenuators, directional couplers, bias tees, DC blocks,
hybrids, power dividers, PIN diode switches, phase shifters, oscillators, integrated
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.
| 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.
| 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.
| 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.
| 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
| 914-279-6187 | Brewster, NY
Directional couplers, combiners, dividers, transformers.
(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
| +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.