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Baseband pulses are video or carrier-less pulses of very short duration. Their spectral content is concentrated primarily from zero frequency through the microwave region of the spectrum. This tutorial attempts to describe some of the vagaries of these pulses and their use in ground penetration radars and communications. Figure...

The setups presented are essentially of two types - thin dielectric sheet testers and z-axis testers. These are the tools that are employed to independently measure the components of the substrate dielectric constant. It is supposed that suitable propagation models may use this information to better predict propagation mode...

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...

High Technology Solutions This redesigned Web site incorporates the company’s new corporate identity and integrates all the products from Aeroflex’s eight product divisions into one complete, searchable site. The home page features a snapshot of Aeroflex including: What’s New, Trade Shows, Business News, and a link to sign up...

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...

HARLAN HOWE Click here to submit your question to Harlan now . 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...

As part of Phase 3 of China Unicom's expansion of its nationwide CDMA2000 1X network, the company is deploying networks based on Nortel Networks solutions in four markets in China. The deployments, which began in April 2003 and are expected to be fully completed by the end of the...

NTT DoCoMo Inc. has announced the development of micro base stations for the FOMA® (a mobile service based on W-CDMA) 3G network that are up to 1/30th the size of conventional base stations. The FOMA service area has developed steadily, reaching 96 percent of the population nationwide at the...

Filtronic, a global designer and manufacturer of customised microwave electronic subsystems for the wireless telecommunications and defence industries, has announced that it has been selected by a new OEM customer to supply initial quantities of an integrated radio frequency head unit to be installed in 3G wideband code division...

A new standard from the Institute of Electrical and Electronic Engineers (IEEE) opens the world of wireless communications to inexpensive applications, from sensors and switches for industrial and residential use to smart tags and badges, interactive toys, inventory tracking and much more. The standard, IEEE 802.15.4,™ provides for low...