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Industry News

Extracting a Nonlinear Electro-thermal Model for a GaN HFET

This article describes the procedure used to extract a nonlinear model for a gallium nitride (GaN) power HFET. The source device is a 2 mm gate-width GaN-on-silicon HFET produced by Nitronex Corp., although the procedure can be applied to many other ty...
The development of GaN technology has brought with it the need for accurate nonlinear active device models that can be easily used in standard design tools. A GaN HEMT model should ideally be scalable with gate width and should be able to predict the performance of the device over...
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CMOS AGC Design Strategies

This article presents seven widely used topologies for the AGC.
The automatic gain control (AGC) circuit is a critical building block in modern wireless transceivers. It is used in both the transmitter (TX) and receiver (RX). In the TX, the AGC is used to regulate the output power level. For example, a well-known issue in a CDMA system is...
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A Push-on Connector Series

The development of the multi-coax/DC connector has been prolonged and demanding, taking over 25 years. At first there was the development of the Quick Connectors or ‘push-on’ type connectors, which were originally designed and introduced for applications where limited space requirements made tightening, torquing and loosening a threaded coupling...
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Leadless SMT Cavity Filters

At present, market demand for miniaturization of SMT components is satisfied at the expense of poorer component insertion loss and limited levels of ultimate rejection. While high Q components offer increased range and/or reduced noise figure at the system level, miniaturized components fit mechanical constraints and tight budgets. The...
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Software Update

Intelligent Optimization Tool Optimizer is new intelligent tool for Vector Fields’ electromagnetic modeling and simulation software that will automatically find the best solution to a design problem. Optimizer automatically selects and manages multiple goal-seeking algorithms to eliminate the need for manual intervention and to make optimization feasible in virtually...
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New Waves: RF Components and Systems

SMT Mixer Hittite Microwave has introduced a new HMC258LC3B GaAs MMIC sub-harmonic SMT mixer intended for microwave radios, VSAT, test and measurement, instrumentation and military applications from 14.5 to 19.5 GHz. The unit has an integrated LO amplifier housed in a 3 x 3 mm leadless RoHS-compliant ceramic SMT...
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New Literature

Precision Frequency Sources This catalog describes the complete line of frequency synthesizers from Programmed Test Sources Inc. (PTS). These synthesizers produce fast-switching, low phase-noise precision frequencies. With easy remote programming, they are vital in advanced measurement or production systems and also serve as stand-alone test equipment. Programmed Test Sources...
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ANADIGICS Introduces 2.3 to 2.4 GHz Power Amplifier for WiMAX

Mobile World Congress, Barcelona, Spain
ANADIGICS Inc., a provider of semiconductor solutions in the broadband wireless and wireline communications markets, announced its new AWM6422 power amplifier (PA). By offering the AWM6422, which operates in the 2.3 to 2.4 GHz frequency band allocated for broadband mobile wireless services, ANADIGICS expands its portfolio of products for...
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Expert Advice Responses Page (Febuary)

Published Tuesday, Febuary 19, 2008 | Last Update 3.04.08 Here are your replies to the Febuary Expert Advice column This month, Rafi Hershtig, K&L Microwave talks About the Band-Reject Filter (BRF), or Band-Stop, is the solution of choice in an increasing number of cases. Exhibiting low loss and good...
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Skyworks Increases Shipments of GPRS Front-End Modules for SoC Applications

Mobile World Congress, Barcelona, Spain
Skyworks Solutions Inc., a developer of high performance analog and mixed signal semiconductors enabling mobile connectivity, announced that it has expanded its position in (GPRS) front-end modules (FEMs) through strategic engagements with leading system on chip (SoC) providers. To date, Skyworks has shipped more than 750 million GPRS power...
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