| Dow-Key Microwave Corporation is the world's
manufacturer of electro-mechanical RF
switches. We are
and committed to providing unparalleled
service, competitive pricing, on-time
delivery and switch
products that are
distinguished by quality and reliability.
| Dow-Key offers the largest switch product line in
world with over 10,000 unique configurations.
Our Products Include:
Coaxial Switches - SPDT, DPDT, Transfer,
Manual, Fail-Safe, NO,
Switch Matrices - Multi-Pole,
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
|For our latest specials, please check our
Excess Inventory &
Out the Door in 24
Guided Wave Technology
|Guided Wave Technology's Coupling Matrix Synthesis (CMS) tool facilitates synthesis of N+2 coupling matrices
for Chebyshev bandpass filtering functions, with arbitrary finite-position transmission zeroes.
|The CMS tool gives
a fast and accurate
| ● Filter orders up to 12
● Arbitrary placement of transmission zeroes
● Complex transmission zeroes
● Extended parameter plotting options
file (s2p) generation
● Topology matrix definition of filter circuits
graph and marker functions
● Easily re-scalable axes
● Excellent overview - input/output
● Saving and loading of designs
● Fast response
● Intuitive and very user friendly interface
|Guided Wave Technology
is a microwave filter R&D company, specialized in development and production of
passive filter prototypes and series.
A-Alpha Waveguide Company
310-322-3487 | El Segundo, CA
Cast bends, rigid waveguide tubing.
83-31-353-5001 | Korea
Amplifiers, repeaters, power dividers/combiners, up/down converters, duplexers, waveguide filters, bias tees, couplers, antennas.
Advanced Microwave Components
727-571-1008 | Clearwater, FL
Manufactures a wide variety of standard custom and flexible waveguide components for the microwave | satellite industry including adapters, bends, couplers, gaskets, rotary joints.
+49 7191 9659 0 | Germany
Microwave components including circulators, isolators, waveguide and coaxial components, phase shifters, ferrites, thin film technology.
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.
A.J. Tuck Company
800-972-7330 | Brookfield, CT
Custom waveguide components - filters, horns, transitions, polarizers, double ridge, mm-wave.
Antenna Systems & Solutions
847-584-1000 | Schaumburg, IL
An international distribution firm specializing in HF, VHF, UHF, WiFi, and Microwave systems. Our installation and engineering technicians use the most advanced site planning technologies to make sure the project gets done, and gets done right. We have successfully completed a major communications project on every continent for high-end commercial companies and government agencies. Complete ranges of antennas, towers and masts for HF, VHF, UHF, and microwave, in parabolic, sector, yagi, omni directional, patch, and disguised formats. Coaxial cable and waveguide assemblies built & tested to your specs.
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.
732-560-3800 | Warren, NJ
Connectors, adapters, cable, cable assemblies, phase shifters, waveguide, terminations, attenuators.
A.T. Wall Company
401-739-0740 | Warwick, RI
Rigid rectangular & circular cold drawn, close tolerance waveguide tubing with smooth ID surfaces to meet all of your needs. Brass, BeCu, and Phos-Bronze. Seamless flexible in sizes WR10 through WR284. Flexible twistable in sizes WR22 through WR430. Components Includes adaptors, couplers, bends and twists.
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.
Cobham Microwave (formerly 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 and components for commercial and military applications.
203-250-9678 | Cheshire, CT
Directional couplers, circulators, terminations, filters, coaxial & waveguide adapters, diodes, detectors.
Continental Microwave & Tool (now Cobham)
603-775-5200 | Exeter, NH
Antennas, solid state switches, attenuators, microwave switch filter assemblies, high power switches, PIN-diode control components, and GaAs microwave devices, waveguide components, assemblies and subsystems, integrated assemblies.
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.
206-574-0900 | Seattle, WA
Planar, horn, 8.2 GHz to 110 GHz antennas, waveguide isolators & circulators, switches, adapters, connectors.
Eastern Wireless TeleComm, Inc
410-749-3800 | Salisbury, MD
RF & Microwave filters, duplexers, & multiplexers to 40 GHz for all commercial, military, & wireless, applications.
+370 5 233 34 26 | Vilnius, Lithuania
Mm-wave measurement instruments (Sweep generators, SNA, VNA, direct reading attenuators) mm-wave waveguide components (couplers, tees, bends, twists, horns, detectors, mixers, ...), waveguide components and assemblies for wireless applications.
541-878-3927 | Shady Cove, OR
Specializes in the design and fabrication of RF and microwave components, systems and sub-systems including antennas, antenna polarizers, circulators, isolators, waveguide loads, coaxial loads, microwave pulse compressors, waveguide windows, waveguide seals, waveguide shorts, waveguide couplers and microwave heating.
FSY Microwave (now Spectrum Microwave)
888-553-7531 | Columbia, MD
RF & microwave filters to 40 GHz. LC, cavity, ceramic, waveguide types. 20 years of design experience able to meet your custom specification.
Gerling Applied Engineering
209-527-8960 | Modesto, CA
Waveguide tuners, isolators, loads, transitions, straights, bends, flanges, magnetrons.
H. Rollet & Co
01384 255300 | England
Rigid and flexible waveguide tube, tube, sheet, rod, bar, strip, wire and sections in copper, brass, copper based alloys, aluminium and its alloys, nickel alloys, stainless steel, specialty metals, zinc and nylon/PTFE.
+82-32-816-1456 | Incheon-City, Korea
A wide selection of RF & microwave components as well as power dividers, power splitters, arrestors, bias-Ts, attenuators, terminations, directional couplers which cover the frequency range from DC to 18 GHz. Waveguide filters, diplexer, adaptor, couplers up to 40 GHz, custom designs are available to support applications for the military and commercial industries.
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.
410-749-2424 | Salisbury, MD
Filters, suspended substrates, waveguide.
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.
407-842-3550 | West Palm Beach, FL
DC-60 GHz, waveguide, coaxial, ridgeguide switches.
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.
+44 (0) 1568 612138
|Q-par Angus designs and manufactures antennas, positioners, components and subsystems across the radio frequency
spectrum, with specialisation in microwave & millimetric systems. We design, build and calibrate our products
to the highest engineering standards. Custom products designed to your specifications available.
- Product & Services from Q-par Angus -
| • Antenna Pedestals & Positioners - Surveillance,
EW, Tracking, Test and Measurement
Horn Antennas -
Plane Rectangular, Conical,
Multimode, Ridged and Corrugated
- Linear, Circular (CP),
Prime Focus, Offset, Parabolic, Profiled
Broadcast Antennas - Television and Civil
Sinuous Antennas - Linear, Dual Linear, CP
Spiral Antennas - Wideband LH and RH
Antennas - Vertical, Horizontal,
and Slant Linear
Helical Antennas - CP for Broadcast, Military,
Satcom and Airborne
• Log Periodic Dipole Arrays - Wideband
Millimetre Wave Patch Antennas - Feeds,
Couplers and Horns
• Printed Antennas & Arrays - To Specifications
Components - Waveguide Adaptors, Diplexers,
Filters, Polarisers, Transitions, Attenuators
|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
|» Straight » Bend
» Twist » Transition
» Magic Hybrid Tee
WG to Coax Adapter
|» Fixed » Variable
|» Single, Dual-Channel
» Circulator » Isolator
|» Low, Med, High Power
» Short Circuit
||» Fixed Attenuator
Microwave & Millimeterwave
|» Standard Gain Horn
» Wideband Horn
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.
High Power Attenuators & Terminations
High Power Waveguide Terminations
Isolators and Circulators
SMA Connectors & RPSMA Connectors
High Power Waveguide Terminations
Low Noise & Power Amplifiers
Subsystems & Frequency Converters
Waveguide Switches, Couplers, more
|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.
210-561-4800 | San Antonio, TX
Coaxial, drop-in & waveguide isolators & circulators; coax to waveguide adaptors, couplers, combiners, waveguide terminations, and waveguide bends.
909-987-4715 | Ontario, CA
Adapters, ATE, cable assemblies, connectors, noise sources, terminations, test equipment, tuners, waveguide.
800-333-6254 | St. Petersburg, FL
Power dividers, couplers, isolators, circulators, waveguide components, oscillators, filters, hybrids, attenuators, switches, terminations, amplifiers.
207-654-1700 | Gorham, ME
Waveguide tuners, slotted lines & Ts, miter bends, couplers, rotary joints, filters, gas barriers.
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.
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 Development Laboratories
800-383-8057 | Needham Heights, MA
Waveguide rotary joints, adapters.
+39(0)292162703 | Pioltello, Milano, Italy
Manufacturing of RF components including waveguide band and channel filters, duplexers, couplers, tapers, adapters, flanges, housings and cold plates for RF bridges, and also offers offering also electric testing, project consulting and problem solving.
+82-43-903-4828 | South Korea
SMD, drop-in, coaxial, waveguide isolators, circulators, directional, hybrid couplers, 2way, 3way, 4way dividers, attenuators, terminations.
Pacific Wave Systems
714-893-0152 | Garden Grove, CA
Low-loss waveguide transmission lines, broad-band and high power waveguide components, low VSWR waveguide adapters available in SMA, K and type N.
Penn Engineering Components
818-503-1511 | North Hollywood, CA
Adapters, cast miter bends, flanges, directional couplers, terminations, waveguide components.
Precision Waveguide Components
352-489-9893 | Hernando, FL
Straight sections, bulkhead feed-thru, 90 degree mitre H-plane, rigid twist, tapered transition (adapter), waveguide to coax type-N, waveguide to coax SMA, low power termination, shorting plates, rotary joints, shims.
Q-par Angus Ltd
+44 (0) 1568 612138 | UK
Discrete antennas & components and complete systems across the radio frequency spectrum, microwave design and consultancy, including research and development through to manufacture, tests and field trials, Antenna Calculator. Visit our Web Shop.
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.
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.
631-727-1441 | Manorville, NY
Specializes in the manufacture of EMI shielding, waveguide, connector, conductive, non-conductive, washer style, co-elastomer gaskets, fluid sealing products, static and reciprocating seals, and O-rings. Capabilities include die cutting, molding, laser cutting, extruding, and water jet cut gaskets, along with a wide variety of stocked sheet and roll goods.
Senor Lambda Microwaves
91 011 31047104 | India
Waveguide, adapters, terminations, loads, transitions, installation hardware.
Space Machine & Engineering
727-323-2221 | St. Petersburg, FL
Waveguide assemblies, rotary joints, waveguide adapters and couplers.
Spectrum Elektrotechnik GmbH
+49-89-3548-040 | Germany
Adapters, cable assemblies, circulators, isolators, phase adjusters, phase shifters, terminations, calibration components, coaxial switches, limiters.
727-573-1280 | Clearwater, FL
Quality, cost effective waveguide components including flexible, terminations, adapters, and couplers.
The Waveguide Solution Limited
0044 (0) 1626 835255 | UK
RF/Microwave components including waveguide assemblies, adapters, bends, couplers, loads, diplexers, rotary joints, rotary vane attenuators, connectors, coaxial cable assemblies, phase shifters, switches, hybrids, test equipment, flanges and much much more.
Vector Telecom Pty Ltd
+61 3 9607 8357 | Melbourne , Australia
Waveguide components and assemblies, coaxial components and antennas.
Vidyut Yantra Ydyog
91 1232 242223 | India
Manufacturer of microwave and millimeter waveguide components, antennas, & attenuators.
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.