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Free-space vs. One-horn Interferometer Techniques for Radar Absorber Measurements The reflection coefficient measurements of radar-absorbing materials (RAM) in free space (FS) and using the one-horn interferometer (OHI) technique are compared for different test samples. It is observed that the problems in the measurement of reflection coefficients using the OHI...

MESFET and HEMT Design Using Fast Physical Device Simulation This article demonstrates how fast physical device simulation can be used in conjunction with measured data to gain insight into device operation and help troubleshoot device designs. The need for device simulation, which is fast enough to provide a reasonable...

Around the Circuit INDUSTRY NEWS UK-based Bowthorpe plc has announced that its specialist power supply subsidiary, Switching Systems International (SSI) , Anaheim, CA, has acquired the business and certain assets of Orange, CA- based Conversion Equipment Corp. (CEC) . By obtaining CEC’s custom power supplies for equipment manufacturers, SSI...

New Literature Nylon Resin Brochure This eight-page brochure describes the company’s Capron® XFI™ series nylon resins for large-part (automotive panels, tractor decks and hoods, and lawn tools) and thin-wall (cellular telephones, battery housings, pagers and hand-held electronics) applications. Product photographs are included. AlliedSignal Plastics, Morristown, NJ (888) 565-9835. Product...

Web Update RF and Microwave Products This enhanced Web site details a broad range of categories, including new product data sheets, application notes, employment opportunities and product overviews. The site represents the company’s ongoing efforts to keep customers informed regarding the company’s continually improving production processes to meet market...

COMPONENTS Thin-film Directional Couplers The CP0805 series thin-film directional couplers feature typical coupling performance of 16 dB over a wide frequency range. The units are available in two basic configurations with five different coupling types that feature characteristic impedance of 50 W, maximum insertion loss of 0.25 dB and...

SOFTWARE Load Pull Software This Windows"-based load pull software combines the powerful capability of the latest CCMT DOS version with user-friendly Windows. The software features macro file operation and editor, a configurable tool box, integrated harmonic tuning (requires additional hardware), on-line help, multiple measurement lists, a user-defined figure of...

HARDWARE Ball Slides These ball slides provide accuracy of 0.001" at prices as low as $53 and are reliable due to good shock and impact resistance, which translates into reduced downtime and longer bearing life. Long life is further enhanced by the stainless steel balls and races, which offer...

MATERIALS PTFE Laminates The RO3200™ series woven glass reinforced, ceramic-filled polytetrafluoroethylene laminates have good characteristics, including stable dielectric constant over temperature and low dielectric loss. The laminates offer increased rigidity and improved processability over nonwoven reinforced laminates. The models RO3203™ and RO3210™ are available with electrodeposited copper as a...

ANTENNAS 28 GHz Sector Horn Antennas These sector horn antennas have been developed for LMDS and local multipoint communications systems applications. A 27.35 to 29.5 GHz unit is offered in a 90° sector model with vertical and horizontal polarization models also available. The antennas are designed as head-end or...