- Buyers Guide
The CuClad 6250 and 6700 are low melting point bonding films that have been developed for lamination of stripline or other multilayer circuits fabricated from CuClad or other company PTFE-based laminates. Dielectric constants of 6250 and 6700 bonding films fall in the midrange of CuClad® and DiClad® microwave printed circuit board substrate product lines and ensure uniform reproducibility of electrical performance.
Arlon Materials for Electronics,
The WB series of dry photoresist is an attractive alternative for wafer bumping versus liquid resists. This thick, dry photoresist (from 50 to over 100 microns) is applied in one step, with no solvents or drying required. The result is fewer overall process steps, and exact thickness uniformity from edge to edge of the wafer can be achieved, no matter what wafer size is being produced. A range of WB dry photoresist thicknesses and formulations are available for use in lead-free, photostencil and standard electroplating applications.
DuPont Electronic Technologies,
Research Triangle Park, NC
Injection Molded Absorbers and Dielectric Materials
These compounds offer magnetic and dielectric properties that are utilized with injection molding and thermal compression techniques for production of high quantities. The injection molding technique was introduced in order to improve part cost compared to traditional machining of customized shaped parts. Standard dimensional tolerances can be maintained with molding techniques. Within the magnetically loaded compounds, the applications include absorber termination loads, attenuators, absorber covers and housings. Dielectric loaded compounds are customized in functions of the required permittivity, temperature and mechanical stability.
Emerson & Cuming Microwave Products,
Custom Optoelectronic Device Packaging
This custom packaging of optoelectronic devices was designed to meet commercial, indus-trial and military fiberoptic applications. Packages include industry accepted DIL, Mini-DIL, butterfly, coaxial, and TO styles, requiring hermetic environmental sealing. This device packaging of customer supplied devices in bare chip form or on a sub-mount includes MIL-Spec qualifiable lasers, ELEDs and a variety of detector products. Additional custom test services and product qualification plans are also available.
Laser Diode Inc., a business unit of Tyco Electronics,
Liquid Crystalline Polymer
The R/flex® 3000 family of liquid crystalline polymer (LCP)-based circuit materials complements the R/flex 3600 LCP, single-clad laminate. The R/flex 3850® double-clad laminate offers a low dielectric constant (Dk = 2.9) for controlled impedance combined with good dimensional stability for dense fine-line applications. R/flex 3850 laminate is produced in a range of copper and film thicknesses, just as the single-clad laminate, and is available in standard panel formats. The R/flex 3000 family of materials now includes a single-clad lower melt point and a double-clad high melt temperature laminate. These materials offer a unique combination of mechanical, electrical, thermal and environmental properties for tightly controlled impedance flex interconnections, next-generation wireless handsets, high density flip-chip packages and moisture-resistant sensors.
Gaskets and Shielding Products
These Quietshield™ electromagnetic gaskets and shielding products are available in fabric-over-foam, metal mesh, fabric and tape, waved metal and conductive elastomer varieties. Quietshield gaskets provide unique solutions to the most stringent shielding, grounding, ESD and packaging requirements and represent the cost-effective avenue for creativity in design. These gaskets have a shielding effectiveness of 70 to 100 dB between 1 MHz and 18 GHz.
Spectrum Control Inc.,
Thermally Stable Material
The TSM-30 is a material that was specifically engineered to offer customers a thermally stable material, while also providing a high performance, high frequency material that exhibits low loss and dimensional stability. TSM-30 is currently available in sizes up to 36" ¥ 48", with cut panel sizes available: 12" x 18", 18" x 24" and 24" x 36". Material can be purchased in increments of 0.0050", with all standard copper thicknesses.
High Resistivity Silicon
This HiRes™ is a high purity, high resistivity silicon for microwave and millimeter-wave applications. Wafers made from it can replace existing RF wafer substrates without compromising important parameters and make “one chip” solutions possible. It is a monocrystalline silicon grown by the Float Zone process with a bulk resistivity from 8000 Ω-cm to 30,000 Ω-cm. This silicon is available with both p and n-type dopants and has a narrow axial and radial resistivity tolerance to ensure uniform microwave performance. A material’s loss tangent (tanδ) is significant and HiRes silicon claims to exhibit values of tand far below those of low resistivity silicon.
Topsil Semiconductor Materials,
+45 47 36 56 00,
The model SWN-1170-4DT-AKG-standard with option 120 is an SP4T non-reflective (absorptive) solid-state, PIN diode switch. This unit has high isolation with 110 dB minimum across the frequency band of 10 MHz to 20 GHz. The insertion loss is 5 dB maximum and VSWR is 2.0 maximum. RF input power is +20 dBm operating and +30 dBm survival. The power supply is +5 and –12 VDC both at 100 mA maximum. Size: 1.25" x 1.25" x 0.70".
American Microwave Corp.,
Single Layer Capacitors
The 116 series of dielectric M, Max-K™ is the newest addition to the single layer capacitor line. This product has a stable X7R temperature coefficient of capacitance of ±15 percent over the temperature range of –55° to +125°C with a nominal dielectric constant of 25,000. The 116 Max-K is designed for reliable automated wire and ribbon bonding and supports various attachment methods such as eutectic die bonding, epoxy die bonding or solder attachment.
American Technical Ceramics,
Huntington Station, NY
Microminiature Coaxial Connectors
This series of MC-Card microminiature coaxial connectors offers a 50 W impedance and can replace MMCX connectors in many wireless and telecom applications. These connectors feature snap-on mating, allowing rotation when mated, and operate through a frequency range of DC to 6 GHz. This series is available in configurations that include cable connectors, PC board receptacles, switching connectors and adapters. These MC-Card connectors have gold-plated brass bodies and Teflon dielectrics. Center contacts are gold-plated beryllium copper or brass.
Delta Electronics Manufacturing Corp.,
The model DWDM is a 2.5 gigabit small form-factor pluggable transceiver that has begun sampling to optical network equipment manufacturers. This ultra-small low power transceiver complies with the SFP multi-source agreement, which allows communication equipment manufacturers to design high port-density DWDM 2.5 Gbps optical line cards at lower costs. In addition, the hot pluggable feature enables OEMs to reduce manufacturing cost and inventory and allows optical port upgrades and flexibility at the customers’ premise at any point.
Eudyna Devices USA Inc.,
San Jose, CA (408) 232-9500,
The model DMI6018 is a broadband isolator that supports the frequency range of 6 to 18 GHz. This unit is primarily utilized in test setups and radar system applications. It comes standard with SMA connectors. This isolator has specifications of 15 dB typical isolation, 0.9 dB typical insertion loss and 1.45 typical VSWR. Power handling is 2 W average and 20 W peak. Operating temperature is 0 to +85°C. Size: 0.50" x 0.58" x 0.38". Delivery: in-stock item.
DiTom Microwave Inc.,
Fresno, CA (559) 255-7045, www.ditom.com.
Circle No. 227
These waveguide-to-coax 1.85 mm (˚V™) adaptors cover the frequency range of 33 to 65 GHz. All adaptors are CAD/ CAM manufactured, offer good reliability and repeatability and are available with either male or female connectors. The adaptors are available in either precision or standard commercial grades. The maximum VSWR of the precision grades is 1.3 (typically 1.15) whereas the VSWR of the lower cost standard commercial grade units is 1.4 maximum (typically 1.25).
Cornwall, England +44
(0) 1208 77777,
The model GC10000-390 is a comb (harmonic) generator that takes 10 GHz input signals and converts to high frequency harmonics, 20, 30, 40 and 50 GHz at the output. The typical output power level at 50 GHz is –20 dBm. The standard required input power at 10 GHz is +27 dBm. The input is matched to 2:1 maximum VSWR. The unit has a SMA-male input connector and a K-female output connector.
San Jose, CA
Tetra Band Duplexer
The model WSD-00305 is a high performing, high power rated duplexer used on China’s 450 MHz tetra band system. The duplexer can be integrated with additional components such as a low noise amplifier and coupler, and is rack mountable.
K&L Microwave Inc.,
GPS Notch Filter
The model 5DBR-1227/1575-S is a dual band GPS notch filter with one input and one output. The filter features 1 dB maximum insertion loss out-of-band with typical 3 dB bandwidths of 10 percent. The VSWR is 2.0 excluding the notch area. The notch depths are specified as 60 dB minimum. The unit features a 2.1 x 0.8 x 0.4 package size with SMA-female connectors.
2.4 GHz Diplexer
This model BK-21N is a pre-tuned diplexer that is designed to separate and combine low frequency signals from 80 to 2170 MHz with the 802.11b WiFi signals at 2.4 to 2.5 GHz. This suspended substrate design offers the performance of a cavity (> 50 dB isolation/0.5 dB typical loss) at a low cost. The unit is rated at 150 W input for the low frequency bands, PIM is specified at < –140 dBc, and both arms have DC continuity.
This DBTC series of directional couplers operate from 5 to 2000 MHz and feature nine different coupling values that range from 9 to 20 dB. These couplers deliver flat coupling over broad multi-octave bandwidths. The 50 and 75 Ω models stand 0.15" square and employ LTCC construction to embed circuits inside the ceramic base thus realizing good temperature stability, repeatability and ruggedness. Patented with additional patent pending. Price: $1.99 each (25).
Automotive Coaxial Connectors
These USCAR plugs and jacks have been developed to meet the specific requirements of the American automotive industry. The connectors are for use up to 6 GHz and optimized for a frequency range of DC to 4 GHz and support all RF applications found in cars such as radio, TV broadcast, GSM and GPS. The plugs and jacks can withstand a temperature range of –40° to +110°C and offer a high cable retention force of up to 110 N for standard 5/50 cable (RG58) and for 2.6/50 cable (RG316).
+33 1 49 35 35 35,
These single pole, double throw (SPDT) switches are based on the reliable series of coaxial switches. A precision machined waveguide transition assembly is combined with coaxial switch technology to produce a compact device that features the low current and fast switching time of a coaxial switch with waveguide inputs and outputs. Units are available in various waveguide sizes that cover 7.05 to 40 GHz with a variety of options.
RLC Electronics Inc.,
Mount Kisco, NY
Isolators and Circulators
This BQ series of isolators and circulators is designed for high volume OEM manufacturing. The BQ series combines performance and reliability with a semi-automated manufacturing process to deliver a range of specifications to match performance and cost requirements. This series is designed for AMP, GSM, DCS, PCS and UMTS (3G) base station power amplifiers and filter delay assemblies.
Dorval, Quebec, Canada
250 W Dual Isolator
This CS 1170-NT series of high isolation dual isolators utilize unique design techniques. The typical performance of the series is 45 dB minimum isolation, less than 0.5 dB insertion loss and 1.20 maximum VSWR over the 290 to 320 MHz frequency range. The unit is designed to operate under severe military environments. Type N connectors are standard. Other frequency ranges are also available. Size: 3-3/8" x 4-1/4" x 1-1/2".
UTE Microwave Inc.,
Asbury Park, NJ
Low Noise Figure Amplifier
The model PEC-12-50M40G-4R0-15-SFF is a low noise figure amplifier that offers 12 dB of gain with a gain flatness of ±2 dB while providing a low midband noise figure of 4 dB. This model’s operating frequency ranges from 50 MHz to 40 GHz. The amplifier offers a VSWR in/out of 2.50, input third order intercept of 8 dBm and an operating current of 225 mA at +15 VDC. Size: 0.834" x 0.750" x 0.365".
Planar Electronics Technology,
Successive Detection Log Video Amplifier
The model SDLVA-0120-70 is a successive detection log video amplifier with options dB and 0208. This amplifier operates from 200 to 800 MHz with a limited IF output of –16 dBm and a logging range of –75 to –5 dBm. The input VSWR at –23 dBm is 2.5 and the TSS is –80 dBm typical. The rise and fall times are < 30 ns and the power supply is +15 VDC at 100 mA maximum and –15 VDC at 190 mA maximum. Size: 3.75" x 1.50" x 0.50".
Planar Monolithics Industries Inc.,
The model 400S1G4 and model 450S1G3 are broadband amplifiers that are ideal for use as driver amplifiers in testing wireless and communication components and subsystems. Both amplifiers have good linearity, low noise, low distortion and full rated poweracross the band. The model 400S1G4 is a 400 W, 0.8 to 4.2 GHz unit that can be used as a test instrument that covers multiple frequency bands. The model 450S1G3 delivers more power in a narrower bandwidth of 450 W from 0.8 to 3 GHz.
MMIC Buffer Amplifier
The model 28LN3UA0102 is a gallium arsenide (GaAs) monolithic microwave integrated circuit (MMIC) three-stage buffer amplifier with ultra-wide bandwidth and high dynamic range. Using 0.15 micron gate length GaAs pseudomorphic high electron mobility transistor (pHEMT) device model technology, this buffer amplifier covers the 18 to 38 GHz frequency bands and can operate at 3.5 or 5.5 V. This device can also operate with all three stages biased in parallel or with independent bias for input and output stages, as required to optimize performance.
Mimix Broadband Inc.,
Low Profile Antenna
This MicroCell is a low profile antenna that exhibits a hemispherical pattern. The good cover age of the MicroCell Hemi is specifically designed to distribute RF within large areas, such as a warehouse or a city block without concern for the orientation of the antennas. The elliptical polarization minimizes losses typically associated with cross-polarization. The MicroCell is available in 800, 900 MHz, 2.4 GHz, dual band and dual polarization models.
Astron Wireless Technologies Inc.,
The IBS-18 series of synthesizers is based on indirect PLL design technology with internal DDS for fine resolution. This series is ideally suited for ATE as well as radar and EW system applications where broadband coverage, low phase noise, fast switching speeds and reliability are of primary importance. This unique design architecture allows for switching speeds of 125 ms combined with low phase noise levels. This series features an output frequency range of 0.05 to 18 GHz (0.01 to 6 GHz optional). Size: 1U x 16.75 x 22” deep. Weight: 25 lbs.
Temperature-compensated Crystal Oscillator
The model FOX783 is a voltage-controlled temperature-compensated crystal oscillator (VCTCXO) that is utilized with frequencies from 1.5 to 312.0 MHz. This model is ideal for telecommunications, base station, avionics, satellite and military applications as well as in test equipment and other high frequency applications. This oscillator features a standard frequency stability of ±2.5 PPM over the operating temperature range of –40° to +85°C. Price: $68.00 (1000). Delivery: eight weeks (ARO).
Fort Myers, FL
The model HMC368LP4 is an amp-doubler-amp MMIC that is ideal for use as an LO multiplier in microwave radio, VSAT, radar and ECM applications. When driven with a +2 dBm signal, this model provides +15 dBm of typical output power from 9 to 16 GHz, making it ideal for driving the LO port of MMIC mixers. This amp-doubler-amp, or active ¥2 multiplier, offers a wide input power range of 0 to +10 dBm, while isolating the F0 and 3F0 signals by 18 dB with respect to the desired output. Size: 4 x 4 mm.
Hittite Microwave Corp.,
Temperature-compensated Crystal Oscillator
The MTT series is a high performance temperature-compensated crystal oscillator (TCXO) that operates in the frequency range of 12 to 26 MHz. The series is ideal for a wide variety of industrial and military applications. These TCXOs offer an operating temperature of –30° to 75°C, with an available industrial temperature range of –40° to 85°C and stabilities down to ±1 ppm. Size: 5.0 x 3.2 x 1.5 mm. Price: $2.50 (10,000).
Rancho Santa Margarita, CA
The model CRO2275A is a voltage-controlled oscillator that covers 2250 to 2300 MHz in 0.5 to 4.5 VDC of tuning and good phase noise performance. This model is geared for the wireless broadband industry and delivers a spectral signal of –85 and –114 dBc/Hz at 1 and 10 kHz offsets, respectively, while covering the 50 MHz bandwidth with an average tuning sensitivity of 15 MHz/V. In addition, the CRO2275A is designed to operate off a 5 VDC supply while drawing only 20 mA of current, providing the end user with 1.5±1.5 dBm of output power into a 50 W load and operates in a range of –10° to 75°C. Size: 0.050" x 0.50" x 0.22". Price: $29.95.
San Diego, CA
The RS-100 series of switches provide 1-for-N shared redundant paths for protecting multiple fiber optic or coaxial transmission links. The switching system accepts alarm signals from the customers’ equipment. When a piece of the equipment or a transmission link fails, the redundant link is automatically engaged to carry that particular signal. No manual patching is required and by sharing a single redundant path, total cost of the system is reduced when compared with providing individual spares for each active link.
CrossPoint Technologies Inc.,
The Signature model MS2781A is a signal analyzer that provides the spectrum and signal analysis tools engineers require to design and manufacture advanced RF and microwave communications systems, including WLAN, 3G and 4G. Signature has been developed with a new and advanced architecture that provides spectrum analyzer performance as well as digital modulation analysis over the 100 Hz to 8 GHz frequency range. In addition, the architecture provides an optional 30 MHz resolution bandwidth for capturing, measuring and analyzing wide modulation bandwidth signals. Price: $49,500.
Morgan Hill, CA
High Power/Temperature/ Altitude Test Facility
This RF, high power/temperature/altitude test facility includes a test chamber with internal dimensions of 6 x 5 x 7 feet and high power amplifiers that operate from 400 MHz to 18 GHz and produce up to 1000 W CW and 10,000 W peak power. It is fully computer controlled and can be programmed to test over a temperature range of –73° to +250°C and altitudes ranging from site pressure to 100,000 ft. Additionally, the chamber has RF absorbing material to allow for antenna testing while transmitting RF power. The facility is ideal for testing antennas and other large microwave components.
Nurad Technologies Inc.,
Get access to premium content and e-newsletters by registering on the web site. You can also subscribe to Microwave Journal magazine.