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
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.
| 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, horns,
| 702-293-1576 | Boulder City, NV
Attenuators, power dividers, voltage probes, pulse generators.
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.
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,
| 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.
| 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.
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
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.
| 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,
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.
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
| 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
| 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,
| 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.
| 866-444-6322 | Denville, NJ
RF & microwave components for in-building, satellite, radar, radio, telemetry,
mobile radio, aviation & ATC. Attenuators, directional & hybrid couplers,
isolators & circulators, power dividers & combiners, loads, DC blocks, bias-Ts
and adapters & cables.
| 973-992-7700 | Livingston, NJ
Attenuators, bias tees, couplers, dc blocks, coaxial junctions, terminations,
low pass filters, power splitters/dividers, tuners & line stretchers, waveguide
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,
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.
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.
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.
| +82-32-822-3290 | Incheon, Korea
Manufacturer of RF attenuators and terminations, coaxial connectors, adapters,
and cable assemblies, DC blocks, surge arrestors, power combiner / dividers, and
| 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, coils, batteries.
| 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
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.
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
Flexible twistable and rigid waveguides, flanges, pressure windows, power splitters,
hot stand-by couplers, filters, diplexers.
203-380-9800 | Stratford, CT
Antennas, attenuators, couplers, DC blocks, detectors, fiber optic components,
phase shifters, surge protectors, terminations, coaxial adapters, connectors, switches.
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.
Noise Components Ltd | +44 (0) 5601 06 69 30 | Southend-on-Sea, Essex,
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
Power 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 dividers.
| 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
| 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.
| 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.
| 973-515-3001 | Whippany, 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, and resistive dividers.
| 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 assemblies.
| +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.