Custom Capacitors Available Quickly
The Tecate Group has announced the quick-turnaround availability of custom ultracapacitor modules expressly engineered to accelerate the development of military ground-mobile, sea, and airborne products and systems. The modules employ either Tecate's PowerBurst or Maxwell Technologies' BoostCap ultracapacitor cells. The 2.7-V, high-powerdensity RoHS-compliant cells feature capacitance values ranging from 0.5 to 3000 F and low equivalent series resistance (ESR) for optimal performance in mission-critical military applications. The quick-turn custom ultracapacitor modules are available encased in a rugged, aluminum housing and an array of custom packaging alternatives. A wide choice of mounting options, together with cables and interconnect options are offered.
7520 Mission Valley Rd.,
San Diego, CA 92108-4400;
(619) 398-9700, FAX: (619) 398- 9777,
Synthesizer Tunes From 0.5 To 20.0 GHz
The 20 GHz QuickSyn microwave frequency synthesizer from Phase Matrix is based on a patented, phaserefi ning technology that provides a unique combination of fast-switching speed, low phase noise, and low spurious content, all for a reasonable price. For example, the model FSW-0020 frequency synthesizer operates from 0.5 to 20 GHz (extendable to 0.2 GHz) with 0.001 Hz resolution. It features frequency switching speed of 100 s and delivers +13 dBm output power across the frequency range. The single-sideband (SSB) phase noise is -116 dBc/Hz offset 10 kHz from a 20-GHz carrier, with spurious content of typically -60 dBc. It includes a wide range of modulation capabilities, including amplitude modulation (AM), frequency modulation (FM), phase modulation, and pulse modulation. It also includes power leveling and performs frequency and power sweeps.
Lowpass Filter Supports L-Band
Model AE1706L8769 is a lumpedelement lowpass fi lter designed for applications at L-band frequencies. It has a cutoff frequency of 1706 MHz and passband insertion loss of less than 0.6 dB with passband return loss of better than 18 dB. The rejection at 3300 MHz is greater than 40 dB, increasing to more than 65 dB at 4800 MHz. The compact surface-mount lowpass fi lter is supplied with SMA coaxial connectors and measures just 1.5 x 0.5 x 0.4 in.
Supplier Augments Ceramics And Services
Laser Services has expanded capabilities in both ceramic materials inventory and laser-based machining services for those materials. The company stocks ceramic substrates (primarily alumina) from leading suppliers, with a support staff that maintains up-to-date details on the critical ceramic material parameters that can impact the mechanical and electrical integrity of a customer's design. These include consistency of dielectric constant, coeffi cient of thermal expansion (CTE), and dissipation factor. The company also offers extensive laser machining services for all types of materials. The fi rm's array of laser-based machine tools includes high-power, midpower, and low-power lasers to cut, mark, weld, and perform a wide range of machining operations on a variety of materials. A combination of high-power Nd:YAG lasers and high-power CO2 laser systems can accommodate surfaces as large as 5 x 10 ft., while mid-power CO2 systems provide optically aligned precision cuts. Dualbeam and quad-beam CO2 laser systems can handle detailed designs whether in small prototype runs or large production runs.
Laser Services, Inc.,
123 Oak Hill Road,
Westford, MA 01886;
(978) 692-6180 FAX: (978) 692-7271,
Terminations Absorb 10-kW Peaks To 18 GHz
The models 368BNM and 369BNM high-power terminations are designed for highpower applications to 18 GHz. Model 368BNM operates from 2 to 18 GHz, handles 500 W average power and as much as 5 kW peak RF power. It exhibits maximum VSWR of 1.45:1, weighs 6.5 lbs., and measures 12 x 3 in. Model 368BNM covers 700 MHz to 18 GHz and handles 175 W average power and as much as 10 kW peak RF power. Its maximum VSWR is 1.20:1. It measures 13 x 2.4 in. and weighs 2.5 lb. Both models use Type-N female connectors, although other connector types are available. Both terminations are available for immediate delivery.
Tantalum Chip Caps Extended To 75 V
The commercial-off-the-shelf (COTS) solid tantalum chip capacitors in the TANTAMOUNT Hi-Rel COTS T97 and commercial 597D series from Vishay Intertechnology have been enhanced with a 75-V rating. The T97 series offers designers a wide array of ratings not found in available MIL specifi cations, combining the fl exibility and convenience of a commercial product with the reliability needed for demanding applications. They are designed for safety-critical applications, such as in military and aerospace systems, including DC-to-DC converters and power distribution in weapons and radar systems, avionics, and space-based electronics in accordance with MIL-PRF-55365. Both series are available with capacitance values from 10 F to 1500 F and voltage range from 4 to 75 V in nine case sizes.
Vishay Intertechnology, Inc.,
63 Lancaster Ave.,
Malvern, PA 19355- 2143;
Hybrid Coupler Runs 0.5 To 3.0 GHz
Model IPP-7032 is a 3-dB, 90-deg. surface-mount hybrid coupler from Innovative Power Products that operates from 500 to 3000 MHz. It can combine two signals totaling 100 W CW output power in a surface-mount housing measuring only 1.80 x 0.50 in. It exhibits insertion loss of less than 0.60 dB with VSWR of less than 1.30:1. The amplitude balance is better than 0.80 dB while the phase balance is better than 5 deg. The hybrid coupler achieves better than 18 dB isolation between ports. It is also available in two RoHS compliant versions that are RoHS Tin (IPP-7032RT) and RoHS Gold (IPP-7032RG).
Innovative Power Products,
1170-7 Lincoln Avenue,
Holbrook, NY 11741;
(631) 563-0088, FAX: (631) 563-9898,
e-mail: [email protected],