Antenna Systems & Technology - Summer 2016 - (Page 15)

COMPONENTS / SUBSYSTEMS NEW PRODUCTS & SERVICES New Waveguide Twists Operating from 18 to 110 GHz Across Seven Bands Pasternack has introduced a family of precision waveguide twists operating from 18 to 110 GHz across seven frequency bands. Suited for systems requiring a gradual turn in the polarization and waveform, these twists are designed and constructed to prevent unwanted distortion in the signal's transmission. Pasternack's waveguide twists are useful components when building a waveguide system, as they allow the waveguide to be turned at a precise angle in order to meet the mechanical and electrical constraints of the overall system. These waveguide twists are also beneficial in applications to ensure correct polarization of the signal. Pasternack offers both 45° and 90° waveguide twists from stock, with the 45° versions being available in both right hand and left hand twist configurations. More than 20 unique models of waveguide twists are offered from Pasternack with waveguide sizes ranging from WR-42 (18 GHz) to WR-10 (110 GHz). This portfolio of waveguide twists boasts gold plated brass construction that offers improved electrical performance with VSWR as low as 1.02:1 and insertion loss as low as 0.2 dB. Both square and circular UG-style flange types are available and mechanical length ranges from 1 to 2.7 inches. All waveguide twists from Pasternack are in-stock and available to ship the same day. "Our new family of waveguide twists are the perfect addition to our growing waveguide product line as they provide more options for designers and engineers to choose from when constructing their systems," said Mark Blackwood, Passive Components Product Manager at Pasternack. New Family of Digital Programmable Attenuators Fairview Microwave, Inc. has announced the release of their digitally controlled programmable attenuators with performance up to 40 GHz and up to 60 dB attenuation range with 0.03 dB minimum step size. These programmable attenuators are commonly used in electronic warfare, military and space communication systems, radar and test and measurement applications. Fairview's digitally controlled attenuators perform the important function of adjusting the amplitude of signal levels in RF, microwave, and millimeter-wave systems. The designs utilize PIN diode semiconductor technology that generates extremely fast switching performance between attenuation states over wide frequency bands. This performance is highly desirable and widely used in transceiver RF and IF sections and in equipment applications such as signal generators to adjust the output level of test signals. The programmable attenuators from Fairview Microwave have integrated TTL driver logic control bit circuitry that ranges from 5 to 10 binary bits depending on the model. This number of bits benefits in very precise and linear digital control of attenuation step sizes that can be as low as 0.03 dB to 1 dB maximum over the entire attenuation range. The command control interface is via a 15 pin female Micro-D socket or USB connector. The circuits are enclosed in environmentally sealed metal packages with epoxy paint finish with either stainless steel SMA or 2.92 mm connectors. Guaranteed operating performance covers a temperature range of -50°C to 85°C. "This selection of programmable digital attenuators is available in rugged coaxial packages and offer accurate and controlled levels of attenuation for use in a variety of signal processing applications in RF, microwave and millimeter-wave systems," said Brian McCutcheon, vice president and general manager at Fairview Microwave. "We have all models available in-stock and ready for immediate shipment." www.AntennasOnline.com Summer 2016 Antenna Systems & Technology 15 http://www.AntennasOnline.com

Table of Contents for the Digital Edition of Antenna Systems & Technology - Summer 2016

Editor’s Choice
LEED with DAS: Ensuring Connectivity in LEED-Certified Buildings
Advertorial: An Evolution in Antenna Design
Antennas
Components/Subsystems
Software / System Design
Test & Measurement
Industry News
Marketplace
The Unexpected Cost of Low-Cost Microwave Antennas

Antenna Systems & Technology - Summer 2016