Jack Browne

Technical Contributor,
Microwaves & RF

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

Quartz Crystals Fit Size-Challenged Designs
The NX2016AA series of surface-mount quartz crystals from NDKAmerica are designed for frequency-control applications requiring extremely small size. he crystals measure only 2 x 1.6 x 0.45 mm and operate at fundamental frequencies from 24 to 80 MHz. The ...
Keithley Publishes Free Data Acquisition Handbook
A comprehensive, 220+-page data-acquisition handbook is available free of charge from Keithley Instruments. The handbook, "Understanding New Developments in Data Acquisition, Measurement, and Control," contains nine sections that cover computer buses, ...
Dorado Delivers Dual-Junction Circulator
Dorado International has announced the availability of a new X-band dual-junction ciculator for phased-array radar systems. Model 4CMD 10-1X is designed for the front-end section of X-band phased arrays and features a 10-percent bandwidth in the ...
R&D Microwaves Delivers Unequal Dividers
R&D Microwaves LLC has developed a line of unequal power dividers for applications through 2.7 GHz. Based on a patented airline structure, the components maintain a fixed split ratio (with available split ratios from 1:3 to 1:1000 or coupling factors of ...
Active Doubler Yields 5 To 12 GHz
Mimix Broadband has introduced an active doubler based on InGaP HBT technology. It accepts input signals from 2.5 to 6.0 GHz and produces output signals from 5.0 to 12.0 GHz at +17 dBm output power. Rejection of fundamental-frequency signal levels is -35 ...
IPP Produces High-Power Combiners
Innovative Power Products has launched a line of in-phase power combiners with a variety of split ratios, frequencies, and power levels. For example, model IPP-1000 is a four-way combiner that handles total power levels fo 750 W CW from 400 to 1000 MHz. ...
State of the Art Ships Coplanar Attenuators
State of the Art (SOTA), best known for their high-rel and military chip resistors, has introduced a line of coplanar attenuators on alumina and aluminum nitride substrates Available with attenuation values from 1 to 20 dB, these tiny pads measure just ...
March 22, 2007 Newsletter
============================== Microwaves & RF UPDATE PlanetEE - http://www.planetee.com/ MWRF - http://www.mwrf.com/ March 22, 2007 ============================== Greetings and welcome to your personal copy of PlanetEE's Microwaves and RF UPDATE ...
Agilent Gains Enhanced WiMAX Forum Status
Agilent Technologies has received principal member status with the WiMAX Forum. The global leader in test equipment has been actively involved in the Forum since 2004. The firm was first to provide standard-compliant 802.16 design and test tools and ...
Mini-Circuits Launches 50-MHz Limiter
Mini-Circuits has announced the availability of the VLM-52+ coaxial limiter for applications from 10 to 500 MHz. Suitable for high-reliability and military applications, the limiter handles input power levels from +10 to +20 dBm and delivers typical ...
Microlab/FXR Unleashes 4 x 2 Hybrid
Microlab/FXR, a wholly owned subsidiary of Wireless Telecom Group, Inc., has introduced a broadband 4 x 2 hybrid combiner for wireless applications from 700 to 2700 MHz. It is designed to combine as many as four signals, as from different antennas, with ...
Loads Channel DC To 3 GHz
A pair of high-power terminations are suitable for handling high power levels in wireless applications from DC to 3 GHz. Model TB-70 is designed for 50 W power while model TB-75 is built to take 100 W power. The terminations feature VSWR of better than ...
Sangshin Elecom Serves Up WiMAX Filters
Sangshin Elecom has developed a line of monoblock filters well suited for 3- and 5-GHz WiMAX applications. The filters, which are available with a wide range of center frequencies and passbands from 2.3 to 6.0 GHz, provide improved electrical performance ...
Starting Smartly With Synthesizers
Making a synthesizer small requires some trade-offs, such as using an external reference source.
GPAs Extend Linear Gain To 6 GHz
These broadband amplifiers run on a single +5-VDC supply and combine high intercept points with low noise figures to excel in applications requiring good linearity.

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