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Introduction to WLLs: Application and Deployment for Fixed and Broadband Services Raj Pandya Arcadia Publishing 243 pages; $79.95 ISBN: 0-471-45132-0 The primary objective of this book is to provide a system level view of the technical, planning and deployment aspects of wireless local loop (WLL) systems. It also includes...

In the past, high frequency RF and microwave design engineers faced difficult choices when selecting an electromagnetic (EM) design and verification tool. The choices were often between a full-blown 3D EM tool with great accuracy but less than optimal simulation speed and design flow integration, or a planar EM...

A new GaAs dual low noise amplifier (LNA) that combines high gain and state-of-the-art noise figure with high IP3 performance and is ideal for balanced amplifier use has been introduced. The CDQ0303-QS dual amplifier uses GaAs pseudomorphic high electron mobility transistor (PHEMT) device technology and is designed to cover...

To save time and money, HFSS 3D electromagnetic-based virtual prototyping is replacing the classical build-and-test design. By generating high accuracy, physics-based models, HFSS improves engineering productivity, reduces development time and better assures first-pass design success. The high performance electronics industry counts on HFSS™ to provide precision virtual prototypes for...

A new quad-band/dual-band power amplifier (PA) module has been developed for use with dual-mode GSM and EDGE handsets. The RMPA1852 PA module was designed to deliver the highest power efficiency in EDGE mode without sacrificing performance in GSM mode. The product achieves 27 percent power-added efficiency (PAE) in EDGE...

The planar inverted-F antenna (PIFA) is widely used in cellular phones, primarily due to its compactness and size. 1 The demand for communication devices for personal communication systems has led to a constant search for ways to reduce the cellular phone dimensions. Applications, such as loudspeakers, cameras, etc., are...

With the increasing volume of data that government authorities and the military have to handle, it is becoming more and more important to have high speed connection for short as well as long haul ranges. Combined with the fact that in many countries the 4 GHz frequency band is...

To efficiently deal with modern day threats, the commander of a naval vessel requires a system that will provide him a highly effective communications and radar threat profile in near real-time. Even better, of course, is if that system can also provide automatic surveillance, together with operational flexibility leading...

Thin film interconnects are a standard circuit technology used in high frequency design components and subsystems where transmission line widths of .005" and under are critical to performance as well as high power applications where thermal conductivity is of concern and materials such as beryllium oxide and aluminum nitride...

The development of Soldier Modernization Programs (SMP) across NATO and other countries poses challenges — not only through the extension of voice and data communications down to each infantryman, but the parallel need to define the level of security required to protect the information sent. Communications security for individual...