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Industry News

International Report

International Report TETRA to the Rescue in Poland The response time and coordination of the emergency services in Czluchow, Poland, are set to improve, after the Polish government commissioned a pilot project to set up a new control centre equipped with a modern TETRA radio system. With a view...
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The Commercial Market

The Commercial Market Ultra Wideband Can Find Relief from CE Industry According to ABI, ultra wideband (UWB), a wireless technology based on modulated pulses of energy, stands to capture technology market share over the next several years in a variety of applications, especially the distribution of wireless video, audio...
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The Book End

Commercial Wireless Circuits and Components Handbook Mike Golio, Editor CRC Press LLC 402 pages; $99.95 ISBN: 0-8493-1564-6 This book provides, in a single volume, comprehensive coverage of microwave and wireless circuits and components design. It can serve as a starting point for any project involving design, development or acquisition...
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Radio On a Chip for Affordable Wireless Networking

A new Radio On a Chip (ROC) has been developed to meet the needs of the emerging short range and low data rate wireless link market. The HRF-ROC093XC ROC has been introduced for wireless, digital data applications in a broad arena of industries. This radio operates in the 902...
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A Compact Dual-band Antenna for WLAN Applications

In the world of portable electronics, antennas are problematic. They need to be small, light weight and possess the ability to perform well in a variety of conditions. It also helps if they can be neatly integrated into the product without protrusions that can be easily damaged or broken...
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A High Frequency Broadband Filter

X2Y® technology is a new balanced component capable of high frequency performance across a broad frequency range. The component uses a standard ceramic capacitor with subtle, but important modifications to its structure. These structural changes create a circuit inside the capacitor that is capable of broadband electromagnetic interference (EMI)...
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Custom Test Fixtures Using Bolt-on Transitions and Calibration Kits

The term "one size fits all" has never applied to microwave test fixtures. They are instead almost always custom creations designed to serve a specific test application, and cannot easily be modified to meet other needs in the future. This has always presented a problem for cost-conscious designers. In...
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A 35 to 45 GHz Low Noise or Buffer Amplifier with Wide Dynamic Range

A versatile new three-stage buffer amplifier has been introduced that is ideal for use as a receiver front end low noise amplifier, but, as a result of its dual bias configurations, it can also be used as a driver amplifier or LO buffer with good linearity and higher gain....
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A Low Power Consumption Architecture for Mobile Phones Above 1800 MHz

The satisfaction that mobile phones can provide is highly dependent on their autonomy. For this reason, many efforts are being made to improve this property. A particular architecture for telecommunication receivers has been designed and is described i...
The satisfaction that mobile phones can provide is highly dependent on their autonomy. Three factors can be easily identified which have a strong influence on autonomy: the power consumption of the mobile phone, the intensity of the electromagnetic field near the mobile and the battery capacity. The first of...
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Application of GTEM Cells to Wireless Communication Transceiver Designs

The GTEM cell has been widely accepted as a sufficient tool in electromagnetic compatibility for both radiated susceptibility tests and radiated emission tests. In this article, the relationships among basic quantities such as input power, electric fie...
The gigahertz transverse electromagnetic mode (GTEM) cell was first proposed in 1987 1 and subsequently patented in 1989 by D. Konigstein and D. Hansen 2 as a high frequency variant of the transverse electromagnetic mode (TEM) cell, which is also known as the Crawford cell. 3 The GTEM cell...
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