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Analog and Digital Signal Generators with High Spectral Purity Hewlett-Packard Co. Santa Rosa, CA Due to the increasingly stringent requirements for communications channels, today's signal generators must have extremely low phase noise to determine if a device, component or subsystem meets test specifications. A new series of spectrally pure...

A 165 W LDMOS FET for 900 MHz Operation An internally matched, common source, N-channel, enhancement-mode laterally diffused metal-oxide semiconductor (LDMOS) FET intended for large-signal amplifier applications in the 860 to 900 MHz frequency range has been developed. The model PTF 10100 LDMOS FET is rated at 165 W...

Advanced Large-signal Models for Transistor Parameter Extraction Software Optotek Ltd. Kanata, Ontario, Canada Accurate model generation is becoming a progressively more important part of the computer-aided-design process. Of special importance are large-signal models capable of accurately predicting the performance of nonlinear circuits. LASIMO large- and small-signal modeling software 1...

Technical Feature Modeling of Metal and Substrate Losses in CMOS and BiCMOS Inductors for RFICs Paolo Arcioni, Rinaldo Castello, Luca Perregrini, Enrico Sacchi and Francesco Svelto Please click here to view the pdf file of the Technical Feature...

Tutorial Signal Generator Spectral Purity Considerations in RF Communications Testing Brian Cheng Please click here to view the pdf file of the Tutorial...

Low Cost Briefcase Satphone Terminal Antennas Two low cost L-band briefcase satphone terminal antennas, a two-element linear array of probe-fed metallic discs and a 2 x 2-element sequential feed planar array of aperture-coupled microstrip patches are investigated. The two antennas were tested indoors in an anechoic chamber and outdoors...

Compact Internal Multiband Microstrip Antennas for Portable GPS, PCS, Cellular and Satellite Phones Mohamed Sanad and Noha Hassan AMANT Reno, Nevada Compact multiband internal integrated microstrip antennas have been developed for different combinations of hand-held portable global positioning systems (GPS), PCS, cellular satellite phones, Personal Computer Memory Card International...

COMPONENTS 0.5 - 3 GHz Miniature Digital Attenuators The models AA105-86 and AA106-86 single positive control GaAs IC FET digital attenuators are four and five bit, respectively. The AA105-86 offers high attenuation accuracy at 1 dB steps to 15 dB; the AA106-86 features high attenuation accuracy at 0.5 dB...

SUBSYSTEMS 1000 W Power Supply The TX1000 series single-output, 1000 W power supply with active input power factor correction circuitry accommodates a 90 to 264 VAC input for global applications. Standard output configurations include 3.3, 5, 12, 15, 18, 20, 24, 28, 36 and 48 V models to support...

TEST EQUIPMENT Voltage Tester Kikusui Electronics Corp.'s model TOS5052 withstanding voltage tester is designed for use with electronic equipment or components and features a rise-time control that automatically increases test voltage to specified levels as required by UL-type and IEC safety standards. It offers a high capacity power supply...