Industry News

A Dual-mode Sensor Solution for Safe Helicopter Landing and Flight Assistance

Helicopters are in danger of suffering damage, collision or crashes when taking off and landing in brown-out/white-out conditions. This article provides an overview of how new developments in radar and laser technology and particularly sensor fusion ca...
During take off and landing flight phases, helicopters can encounter serious brown-out or white-out problems in dusty, sandy or snowy areas as the downwash of the rotor blades creates dust clouds that can completely engulf the helicopter. This is graphically illustrated in Figure 1 . During landing in particular,...
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A Multi-band Inserted Yagi-type Arrayed-slots PIFA Antenna Using a Large Offset Rectangular L-shaped Feed

By inserting Yagi-type arrayed-slots on a metallic plate placed on a foam base with a large offset U-L-shaped feed, a low-cost, surface-mount, planar inverted-F antenna (PIFA), suitable for cellular, PCS, IMT-2000 multi-band operations, is realized. Th...
Along with monopole, patch and slot antennas, the inverted-F antenna (IFA) has become of primary importance for portable and handheld wireless communication units. It is known as a high-efficiency, quasi-omni-directional antenna, with a height of approximately 0.05 to 0.1λ, which is 2.5 to 5 times shorter than a quarter-wave...
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Latest Electromagnetic Simulation Continues to Transform and Define Microwave Design

The introduction of three-dimensional (3D) electromagnetic (EM) Simulation launched a revolution in microwave design by allowing engineers to design, analyze and refine 3D microwave components on their computers. For the first time, designers could visualize the electromagnetic fields in their device, understand the device’s electrical behavior to an unprecedented...
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A True Synthetic Test Environment

Today’s test and measurement suppliers face ever-increasing pressure to deliver more cost-effective solutions to users. They strive for higher production rates while producing products with greater complexity. They are therefore being challenged to supply flexible, scalable and efficient test systems that solve these problems. Synthetic instruments that “synthesize” the...
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Catalog Update

Microwave and Millimeter-wave Conversion Products MITEQ’s 515-page Microwave and Millimeter-wave Conversion Products Catalog features the company’s latest state-of-the-art mixers, image rejection mixers, modulators, multipliers and custom products. This detailed engineering reference manual features product specification sheets including typical test data, outline drawings, questions and answers, technical applications and notes....
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New Waves: Radar/Antenna

High-power L-band Radar Amplifier The Aethercomm Model SSPA 1.2-1.4-200 is a high power, pulsed RF amplifier that is employed in military L-band radar systems and operates from 1200 to 1400 MHz. This PA was designed for L-band radars on fighter aircraft but can be employed in any system. The...
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Microwave Metrics

Monthly Worldwide Semiconductor Revenue The Semiconductor Industry Association (SIA) has released revenue numbers for September 2007 of $25.75 B (raw numbers not three-month moving average). The September numbers are up from $25.50 B in September of 2006 and represent 1.0% growth month-over-month versus 9.0% in August. January 2007 started...
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The Book End

Adaptive Radar Signal Processing Simon Haykin, Editor Wiley Interscience • 243 pages; $94.95 ISBN: 978-0-471-73582-3 This book focuses on two types of radar: Surveillance radar, the purpose of which is target detection in the presence of unwanted signals, interference and noise; and low tracking radar, which is complicated by...
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