ISSUE DATE: AUGUST 2004  OPTIONS
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August 2004 - In This Issue

[Cover Story]
Liquid-Crystalline Polymers Bond Multilayer Circuits
Flexible circuits have long been associated with polyimide films, although such materials have been limited in high-frequency performance. The R/flex® 3000 line of liquid-crystal-polymer (LCP) circuit materials from Rogers Corp....  — Jack Browne

[News]
Technologies Combine For Broadband Solutions
Broadband is a word that once implied military radar systems operating from 2 to 18 GHz. The term has taken on different meaning in recent years, becoming almost synonymous with technologies that support commercial high-speed data...  — Jack Browne

[Design Features]
Optically Sculpt UWB Waveforms
Ultrawideband (UWB) and optical waveforms with arbitrary and wideband modulation can be generated by sculpting the spectrum of a broadband optical pulse and subjecting it to linear dispersion. The technique can be visualized as a two-step...  — Jason Chou , et al.

[Design Features]
Ensure Stability In Amplifier Designs
Amplifiers can be designed as simply as by installing a transistor in a 50-Ω system. As was shown last month in the first installment of this article series, in this simple case, the gain at each frequency was just the square of the...  — Joseph F. White

[Product Technology]
Field-Strength Analyzer Scans 100 kHz To 2.9 GHz
Practical field-strength measurements call for an analyzer that is portable yet powerful. The model 3290 RF Field Strength Analyzer from PROTEK Test and Measurement (Allendale, NJ) is a handheld instrument that contains not only a...  — Jack Browne

[Product Technology]
Firm Designs/Builds Microwave Antennas
Antenna design is one of the remaining "mystical" areas of the high-frequency electronics industry. Although mathematical modeling software and electromagnetic (EM) simulation tools have made the task somewhat more predictable, successful antenna...  — Jack Browne

[Editorial]
Trying To Define Broadband Systems
Assembling the special report on "Broadband Technologies" beginning on p. 33 proved to be more than just the routine task of compiling data and making telephone calls. Occasionally, a term becomes so ubiquitous that its original meaning becomes...  — Jack Browne