Microwaves & RF articles

Recent articles from Microwaves & RF

Buckley is named Harris Fellow.(people)(Richard Buckley honored)(Brief article)
May 1, 2009... RICHARD BUCKLEY has been named the 2009 recipient of the Harris Fellow Award, the highest recognition for engineering achievement at Harris Corp. Buckley, a Senior Scientist with the RF Communications division in Rochester, NY, is a 25-year veteran of Harris. He is being honored for his...

Meetings.(education)(Conference news)(Brief article)(Calendar)
May 1, 2009... 2009 National Conference on Microwave and Millimeter Wave in China May 23-26, 2009 (China) Xi'an Qujiang International Conference and Exhibition Center, P. R. China For more information contact: Mr. Wei Zilun Phone: 86-755-83655339 FAX: 86-755-836290073 E-mail: kingradio@163.net,...

Generate ultra-short pulses at 50 attoseconds and beyond.(R & D roundup)(Brief article)
May 1, 2009... RESEARCHERS ARE INCREASINGLY leveraging ultra-short light pulses in areas as diverse as high small-scale lithography and high-speed switching and communications. In fact, a simple system for attosecond pulse generation using optic devices known as multistage microring resonators has been...

Sending surface waves along coaxial cables: part 1 of this three-part series introduces the concept of surface waves and high-frequency, low-loss propagation along the surface of a single-conductor or high-impedance coaxial line.(DesignFeature)
May 1, 2009... Coaxial cables had once been thought to support only a single transverse-electromagnetic (TEM) propagation mode. But a solution to the Maxwell-Heaviside equations supports the existence of a propagating transverse-magnetic (TM) surface-wave mode as well. This mode is suppressed by the outer...

Build LPFs with dot-terminations: high-frequency lowpass filters with flat passband responses ideal for digital signal transmissions can be fabricated withmicrostrip dot-terminations.(DesignFeature)(lowpass filters)
May 1, 2009... Lowpass filters with maximally flat group delay are ideal for digital signal transmission systems, since they allow pulsed signals to rise and fall smoothly and settle rapidly to final values without distortion. Filters such as the Bessel-Thomson lowpass filter have been used in these...