Industry News

European Microwave Exhibition 2003

The following list is complete at the time of going to press. GP stands for German Pavilion.
7 Layers ......H109 A.T. Wall Companies ......H53 ACAL GmbH ......GP Accent Optical Technologies ......H93 Actipass Co. Ltd. ......H95 Aeroflex ......H139 Agere Systems ......H52 Agilent Technologies ......G48 Alfred Tronser GmbH ......H51 American Technical Ceramics ......H74 Amplifier Research ......H101 Analog Devices ......G18 Anaren Microwave Inc. ......H12 Andrew Corp. ......G52 Anritsu Ltd....
Read More

A Fully Integrated CMOS VCO for DCS-1800 Direct Conversion Receivers

The goal of this article is to prove that restrictive phase noise requirements can be achieved with a fully integrated CMOS VCO if the LC tank circuit is properly designed. The VCO has been designed in a standard two-metal layer process with 0.8 mm CMO...
The growing demand for mobile communications, mainly telephony, implies the need for better performance of RF transceiver architectures. A fundamental element in these front-ends is a voltage-controlled oscillator (VCO), the performance of which is a determining factor related to system limitations. Fully integrated VCOs usually suffer from poor phase...
Read More

Quarter-wavelength N-way Power Dividers/Combiners: Historical Aspects and New Modifications

Quarter-wavelength, in-phase, N-way power dividers/combiners are widely used in antenna arrays, power amplifiers and transmitters, mixers, phase shifters and vector modulators. This article briefly reviews the history of known quarter-wavelength power ...
The simplest quarter-wavelength, multi-port power divider, known as a Wilkinson divider, 1-2 provides a match at all ports, low loss, in-phase power splitting and high isolation between output ports. Historically, this device was reported earlier. 3-7 It was also described 5 together with the so-called Gysel-type combiner, 8 based...
Read More

Ask Harlan: October 7, 2003

ASK HARLAN YOUR RF & MICROWAVE TECH Q&A RESOURCE You may know Harlan Howe from his twelve years as publisher and editor of Microwave Journal ®, or from his 34 years as a Microwave design engineer and engineering manager, or from his service as an IEEE fellow and past...
Read More

Ask Harlan: October 15, 2003

ASK HARLAN YOUR RF & MICROWAVE TECH Q&A RESOURCE You may know Harlan Howe from his twelve years as publisher and editor of Microwave Journal ®, or from his 34 years as a Microwave design engineer and engineering manager, or from his service as an IEEE fellow and past...
Read More

New Products

COMPONENTS GaAs MMIC Switch The model SWM-6000-1DTU option 011 is an absorptive/non-reflective SPST switch that operates from 10 MHz to 6 GHz (other frequencies available). Insertion loss is 100 dB at 10 MHz and > 30 dB at 6 GHz. SWR is 1.5. Speed is American Microwave Corp., Frederick,...
Read More

UWB Set to Make Commercial Debut

With the absence of a currently available and standardized wireless technology that offers robust multimedia transport of multiple digital streams, Ultra-wideband (UWB) promises to be the technology that delivers the bandwidth and QoS that many consumer electronics companies have been looking for. In-Stat/MDR reports that, having seen the gap...
Read More

New Products

COMPONENTS Solid-state Switch The model SWN-218-2DT options 0518, HPR2W is a high power (2 W) absorptive SP2T switch, that works from 500 MHz to 18 GHz (10 MHz to 18 GHz optional). Insertion loss is 95 dB at 500 MHz and > 80 dB at 18 GHz. Amplitude is...
Read More
See More Videos