Antenna design and interfaces are some of the most varied and difficult topics to cover in any one venue, whether it be a book, application note, or classroom session. Unlike amplifier and filter design that has a relatively limited parameter set and defined well-defined input and output expectations, antennas, being so dependent on their operational environment, end up having to be satisfied with a set of trade-offs that come reasonably close to meeting expectations. Unless you are operating in a fully controlled environment such as an anechoic chamber, the presence of multipath alone can break even the best antenna design. The aforementioned amplifier and filters and most other RF components have the luxury of performing their individual functions from within the protective safety of some sort of shield from outside influences. Even with sophisticated optimizations software, antenna design is still largely a "black art." That, undoubtedly, is why you are here looking for someone to do the job for you. Please consider RF Cafe advertisers first when researching companies to help you.

Antenna Factor Merlin, OR Tel:  (800) 736-6677 Fax:  (541) 471-6251 Antenna Factor is a world leader in cost-effective  antennas. Standard and custom products are  available to support a wide variety of OEM  applications. Our antennas are designed to offer  maximum performance at a cost-effective price. Antenna Products Include Monopole - PW, CW, HW, RH, HD, RAH, RCR, RCS, RCL, LP, RA, PMA, PMB, PMC Dipole - HWR, HW, RCL, RCT, PML, RAF, MHW,  HDP, VDP, DSK, DBD Embeddable - Chip, SP, JJB, HE Series  Specialty - JJB, HE, SP, DSK, DBD, MHW, HDP,  VDP, RMT, RMS, Chip, "Ant Skins" covers  Dual-Band Hole-Mount - DBD, RMS, RMT Series  Magnetic Base - Allow for semi-permanent  mounting on metal surfaces  GPS - DBD, UC, ST, SE, PS Series  Fixed Point - Yagi & Corner Style  Custom - Tap into our expertise  Evaluation Systems - Kits for empirical testing Electro-Photonics 772-485-0927 Palm City, FL High frequency components and design services. We offer wire bondable passive components, coaxial products, printed antennas and very useful test boards for evaluating RF/Microwave components. Custom-design passive components and offer high frequency packaging services. The Electro-Photonics team can support your small R&D design requirements and save you valuable design and characterization time. • Passive RF Components    -  2-way power dividers/combiners    -  Wire-bondable quartz spiral inductors    -  Wire-bondable single-layer capacitors    -  Coaxial cable assemblies    -  Patch antennas • Chip & Wire Assembly Services    -  10K clean room    -  RF measurements to 110 GHz    -  MMIC package design • Custom Evaluation Boards    -  Evaluation boards per manufacturers' layouts    -  Layout optimization    -  0201, 0402, and 0603 2-terminal devices    -  SOLT de-embedding NuWaves Engineering Middletown, OH Tel: (513) 360-0800  NuWaves Engineering is a premier supplier of  Radio Frequency (RF) Systems, Subsystems, RF  Products and Engineering Design Services  designed to customer requirements.  We are a turnkey provider for RF/Microwave  communication custom designs with full project  management and design responsibilities; taking  ownership from the conceptual idea to  production. Design / Consulting Services  • Low Noise Designs • Prototype Development  • Reliability Analysis • Distribution Systems  • RF Amplifiers • Microwave Techniques  • Site Surveys • System Integration Products  • Antennas • Telemetry Transmitters  • RF Tuners • Bi-Directional Amplifiers  • Up/Dn Converters • Frequency Modulators  • Low Noise RF Front    End Amplifiers • Custom Analog and    RF Filters  • Complete RF and Wireless Data Transceivers AeroSat 603-673-4014 / Amherst, NH Design and manufacture of highest efficiency Ku broadband airborne antenna systems. AMT Microwave Corp 805-384-1560 / Camarillo, CA Designing, testing, and manufacturing of RF / Microwave antennas and antenna systems for the military and aerospace industries for over 25 years. Appropriate for a variety of platforms including military attack and communication aircraft, munitions, UAVs, and shipboard and submarine applications. Antenna Design & Manufacturing Co 301-498-1140 / Jessup, MD Design, development and manufacture of calibrated antennas of all types. Antenna Development Corp 575-541-9319 / Las Cruces, NM Custom and standard antennas for spacecraft. Specialize in low-gain antennas. Antenna Products Corp 940-325-3301 / Mineral Wells, TX Antennas - RF spectrum from kHz to GHz, support mission critical military, air/sea navigation, ILS and voice/data communications applications. Accessories - towers, telescoping masts, rotators, rotator controls, HF baluns and tower safety climbing equipment. Antenna Research Associates (A.R.A.) 301-937-8888 / Beltsville, MD Omnidirectional, microstrip, tactical, UHF/VHF/HF, integrated, directional, tripods, masts, military, telecom, ELINT/SIGINT. antennas.us 954-0975-2712 / Margate, FL Antennas for military, mobile radio, GPS, EMS, satellite/terrestrial, ISM, WLAN/Wi-Fi/WiMax, Ham, AM/FM/satellite radio. Cable assembly, connectors, diplexers & filters, software, measurement services. Antenna Technology Communications Inc. (ATCI) 480-844-8501 / Chandler, AZ Antennas, fiber optics, test equipment. Antenna World 305-471-9507 / Miami, FL Offers a wide selection of antennas, cable, connectors and antenna accessories for various applications and markets. Also provides testing and design services. Antenova 847 551 9710 / Elgin, IL Developer and supplier of high performance antennas and RF antenna modules for mobile handsets, portable devices and laptop computers. AN Wireless 717-465-0519 / Johnstown, PA Self supporting tower systems for wireless communications, wireless internet, wireless networking, microwave, paging, broadcast, two-way radio and amateur radio. BAZ Spezialantennen Bad Bergzabern, Germany We produce directional antennas (quad, Yagi, dual band, cross Yagis) for 2m, 70cm,23cm and 13cm,also WLAN antennas. In addition we produce ferrite antennae for VLF, LF,MF, HF, Sferics, 137 MHz, Navtex. BlueSky Mast, Inc 877-411-6278 / Tampa, FL Light weight, portable mast systems from 2 - 20 meters, Designed for one-man portability and light weight, they easily deploy in the harshest of environments with no need for external supports such as shelters or vehicles. Byers Chassis Kits 717-292-4901 / Dover, PA Manufacture of aluminum chassis kits and cabinets. Small sheets of aluminum and brass. VHF and UHF antenna parts. Cobham Antenna Systems +44(0)1638 732177 / Suffolk, UK High gain, printed circuit arrays, ultra wide-band spirals, multi-octave bicones and collinear omni-directional antennas between 100 MHz and 40 GHz. Custom designs. WLAN, RFID, WiMAX, TETRA, telemetry. Compliance Engineering Pty Ltd +(613) 9763 3079 / Knoxfield Australia A single source for all of your EMC requirements, including EMC compliance testing, EMR surveys, consultancy, EMC equipment sales, EMC test system integration, RF shielded enclosures, and antennas. CommsAudit +44 (0)124 225 3131 / Cheltenham, England RF and digital equipment and subsystems for Defence, Telecommunications, Military, and broadcast communications applications. Frequency range 10 kHz to 60 GHz including digital control and digital signal processing (DSP). COTS, quadrature I/Q Receivers, multi-channel receiver systems, RF switching matrix, RF multicouplers, antenna matrices & multicoupler distribution units, masthead amplifiers, RF filters. 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. 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 and components for commercial and military applications. DBL Antennas (+44) 07806 935495 / UK Offers up-to-date antenna system design, by the application of modern computer-modeling, and use of novel techniques for very cost-effective solutions for high-performance systems. Do-It-Yourself 2.4ghz Antenna Free Do-It-Yourself information. Elboxrf +48 (32) 754 25 43 / Poland WLAN 2.45GHz/5.8GHz directional microstrip antennas, RF design services. Eletec Broadcasting Equipment Company + 0033 0493019999 / Nice, France Designs, manufactures and markets radio-TV broadcasting and telecommunication systems, including antennas, FM amplifiers, exciters, power combiners, rebroadcast receivers, transmitters. Filtronic +358 8 8806 122 / Kempele Finland Wireless cellphone antennas: stand alone, internal multiband, external multiband, non-cellular and integrated modules. GeoTool 714-403-2026 / Newport Beach, CA Rick Curtis, WA6JKH. Heavy duty pickup truck antenna mounts were developed to provide Amateur, CB, and commercial radio operators a very strong, easily installed antenna mount for several types of antennas. Eliminates the need to drill holes in the exterior body of your truck, and will maintain a mounting location optimal for long distance communications. GreenWave Scientific 919-876-6220 / Raleigh, NC Develops unique form, fit and function antennas for unique applications and requirements. Very simply, we design and manufacture antennas unlike any other antennas in the world. Custom designs available. Huber+Suhner 866-482-3778 / Essex VT Coax, S-parameter and PIM test data available on every cable, RF connectors, adapters, antennas, fiber-optic products. HyperLink Technologies (now L-com) 800-341-5266 / North Andover, MA Directional parabolics, reflector grids, radome enclosed yagis, panel, omnidirectional antennas, bi-directional amplifiers for wireless LAN, RF connectors, adapters, coax cable, assemblies, combiners, surge protectors, power supplies. 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. 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. Kathrein-Werke KG (0 80 31) 184-0 / Rosenheim, Germany Satellite and terrestrial antenna systems, broadband communication systems, base stations antennas, broadcast antenna system for FM, TV, DAB and DTV filters, combiners and amplifiers. Laird Technologies St. Louis, MO Designer and manufacturer of antenna, electromagnetic interference [EMI], telematics and thermal management solutions for the telecommunications, data-communications, computer, general electronics, network equipment, aerospace, defense, automotive and medical equipment industries.

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 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. New: VNA cable sets. Vector 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 Wenteq 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 cover the frequency range from 100 MHz to 26.5 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        • Microwave 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. Linx Technologies Corp 800-736-6677 / Grants Pass, OR Antennas, 90 degree SMA connectors, PCB-mount, long range wireless RF modules, pre-certified transmitters, receivers in ISM band, transceivers. Lun'tech (English language) Lun'tech (French language) (33) 4 67 55 69 56 / Perols, France For more than 40 years, Lun’tech designs, develops, manufactures, repairs and sales passive and active reflectors (Luneberg lens, trihedral reflector, active system) and antennas as well as microwave measurements in anechoid chamber (3.5 to 40 GHz). ISO9001:2008 certification. 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. M2 Antenna Systems 559-432-8873 / Fresno, CA Yagi, helical, discone, log periodic, satcom, wireless, az/el, turnkey systems. Mentorport 44 (0)2380 868582 / Southampton, Hampshire, UK An electronic design consultancy specialising in low cost, fast turnaround RF, wireless and microwave product design. Microwave Specialty Company 760-744-1544 / San Marcos, CA Arrays, Autotrack, Cassegrain, dipole, DF, dual mode horn, fan beam, feed horn, helical, line sources, lens type, lobing, parabolic, pencil beam, reflector, radomes, spiral, shaped beam, scanning, slot, patch, standard gain, tracking, waveguide feed, corner reflectors. mWAVE Industries, LLC 207-892-0011 / Windham, ME Antenna & antenna component design, development & manufacturing, antenna testing, consulting, build to print, volume manufacturing, antenna improvement studies. Products: Parabolic antennas, shaped beam, sector, omni, horns, helical, microstrip, patch, waveguide, embedded. Antenna Feeds: (waveguide, coax, multi-band, conscan, monopulse, Cassegrain). Patriot Antenna Systems (now Cobham) 800-470-3510 / Albion, Michigan Antennas, feeds, LNB's. PCTEL 800-323-9122 / Bloomingdale, IL Provides antenna solutions for multiple wireless applications including land mobile radio, broadband wireless access, RFID, in-building wireless, aeronautical navigation, GPS, and satellite communications. We produce the industry leading antenna brand MAXRAD. PK's Loop Antennas +61 412 302 939 / Croydon, Victoria Australia Manufacturers of RF converters, filters, amplifiers and loop antennas for longwave, mediumwave,   and shortwave radio reception. Powerwave Technologies 888-797-9283 / Santa Ana, CA Designs, manufactures and markets antennas, boosters, combiners, filters, repeaters, multi-carrier RF power amplifiers, tower-mounted amplifiers and advanced coverage solutions, all for use in cellular, PCS and 3G networks throughout the world. Poynting Antennas (Pty) Ltd +2711 262 5155 / Wendywood, South Africa DF and monitoring range of antennas cover the 20MHz to 3GHz spectrum, military and EMC, ISM/WLAN, GSM/Cellular. PROCOM +45 48 27 84 84 / Denmark Communications antennas, bandpass filters, RF combiners, receiver multicouplers, diplexers, duplexers, RF connectors, RF circulators, RF isolators, RF couplers and SWR meters. 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. Radiall (now Larsen Antennas) Manufacturer of interconnect components including RF coaxial connectors and cable assemblies, antennas, fiber optic and microwave components, and multipin connectors. Radio Modules Limited +44 (0)1761 234 327 / UK Provides a range of high quality radio modules, telemetry modems, wireless video products and antennas, which are suitable for a wide variety of projects and applications. Radiotronix 405-794-7730 / Oklahoma City, OK A premier manufacturer of high performance wireless embedded radio modules and network solutions design platforms for applications in industrial, medical, commercial, automatic meter reading (AMR) and wire replacement markets. Radio Waves, Inc 978-459-8800 / Billerica, MA A proven supplier of high quality microwave antennas for cellular base station interconnects, internet service providers, hospitals and campus environments, Wi-Fi, private networks, disaster recovery and many other applications. Randtron Antenna Systems (now L-3 Communications) 650-326-9500 / Menlo Park, CA Antennas designed for surveillance, high-resolution, ultra-wide frequency bands, detection of low radar cross section (LRCS) targets, LRCS installations, severe environmental applications and polarization diversity. Raven Research +441189714540 / Reading, Berkshire, UK British RF engineering company. Specialising in the design and manufacture of multicouplers, aerials (antennas), radio & GSM, direction finders, radio & satellite training equipment, audio, RF, IF, & baseband distribution. SAMCO Antennas, Inc 817-36-4351 / Fort Worth, TX Full line of Yagi antennas for frequencies from 88 to 1000 MHz and custom made antennas to your specifications. SCAN Antenna A/S +45 43 33 16 20 / Skovlunde, Denmark Antennas for GPS, Wi-Fi, Iridium, satellite, land & marine mobile, base stations. Skymasts Antennas Limited 00 44 1604 494132 / Northampton, UK Design, manufacture and worldwide distribution of professional wireless base station antennas, specialised low profile antenna products, power splitters, duplexers, filters and antenna installation hardware. ISO9001 certified, RoHSS compliant. Spectral Isopole Antennas 949-296-0360 / Santa Ana, CA High-end VHF&UHF antennas for military, commercial and amateur applications. Stella Doradus +353-51-387-145 / Waterford, Ireland 352-465-2181 / Dunnellon, FL Solid & wire mesh parabolic, planar, quarter-wave, base station antennas for ISM, MMDS, WLAN. Taoglas +353 53 9169500 / Ireland +1 858 7760587 / Escondido, CA  Designs, manufactures, and supplies ceramic and PCB based antennas and other wireless components such as patches, chip antennas, PIFA antennas, helix antennas, multi-band antennas, stamped metal. Quad-band GSM antennas. 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. Token Passive Components +886-2-2981 0109 / Taiwan Ceramic resonators, filters, dielectric patch antennas, resistors. Twin Antennas 00912652652628 / India Antennas, WLAN, GSM, CDMA, custom built, accessories. Ultra-Crea Oy +358 50 444 9100 / Finland Specializes in the design, development and manufacture of custom designed/specialty antennas and RF filters from 10 MHz to 6 GHz. Vector Telecom Pty Ltd +61 3 9607 8357 / Melbourne , Australia Waveguide components and assemblies, coaxial components and antennas. Wisewave Technologies, Inc (now Ducommun Technologies) 310-513-7200 / Carson, 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.