Jack Browne

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.

Articles
Ruggedized Synthesizers Soar to 23 GHz
RF Series frequency synnthesizers from Elcom Technologies are single-loop designs with 50-microsecond frequency switching speed across bandwidths as wide as 25 percent from 1 to 23 GHz. The phase-lock-loop (PLL) synthesizers feature step sizes of 1, 5, ...
Signal Generator Tunes 9 kHz to 1.2 GHz
AR Worldwide has introduced the model SG1200, a compact signal generator with 1-Hz frequency resolution from 9 kHz to 1.2 GHz. Output-power levels can be adjusted from -140 to +13 dBm with 0.1-dB resolution. The phase noise is better than -124 dBc/Hz ...
SPDT Switches Control DC To 33.5 GHz
Single-pole, double-throw (SPDT) switches in the CCR-33K series from Teledyne Relays are electromechanical designs suitable for applications above 26.5 GHz. The break-before-make latching switches offer a bandwidth of DC to 33.5 GHz with insertion loss ...
Wideband Power Sensor Supports On-Site Testing
When combined with the company's Site Analyzer, model 5000-EX ditgital power meter, or a personal computer, the model 5012 wideband power sensor from Bird Electronic Corporation can perform a wide range of power measurements for cellular site management ...
Vector Signal Generator Aims At Economy
The model p1211B vector signal generator from precisionWave is an economical test solution for emulating the complex modulated signals found in modern wired and wireless communications systems. It covers the main cellular bands from 800 to 1000 MHz and ...
Microstrip Band- Reject Filter Makes Use Of Metamaterial Substrate
METAMATERIAL SUBSTRATES feature dielectric behavior that can be altered by the application of a voltage. In order to understand how such materials might be used in the design of a band-reject filter, Zachary Thomas and a group of fellow researchers ...
Keeping That New Year's Resolution
For an RF/microwave engineer, a New Years resolution could be as simple as the resolution to get better as an engineer, family member, and friend.
Superstrate Antenna Suitable For Integration With MM-Wave Transceivers
MILLIMETER-WAVE frequencies have long held the promise of generous bandwidths, if only the technology could be made more affordable. With that goal in mind, Thomas Zwick and researchers from the IGM Thomas J. Watson Research Center (Yorktown Heights, NY) ...
Calculating Return-Loss Uncertainty
For reflection measurements, the uncertainty in magnitude VRC, U(|*|) can be converted to the equivalent return loss uncertainty, U(RL), using Eq. 38: where: * = the measured VRC. Calculating phase uncertainty: For a given S-parameter, Sij (i ...
Portable Instrument Puts Eye Patterns At Hand
Portability has come to eye pattern measurements as well as to spectrum analysis, with the introduction of the MP1026A Eye Pattern Analyzer from Anritsu Co. (www.us.anritsu.com), also known as the Bit Master™. The Bit Master brings the same ...
Multiband Antenna Links To Mobile Satellite-Communications Terminals
MOBILE SATELLITE TERMINALS are of increasing interest for military applications requiring rapid deployment and changes in operational positions. In order to support the trend away from large satellite ground stations, Stephen Targonski of the Wideband ...
Handheld Spectrum Analyzers Scan 20 GHz
These battery-powered spectrum analyzers bring new measurement capabilities to a portable package that can fit in the palm of a hand.
Anritsu Launches Two-Port Cable Analyzers
Anritsu Company has introduced its enhanced Broadband Site Master(TM) S810D/S820D cable and antenna analyzers with optional CW signal source module for performing loss measurements from 2 MHz to 20 GHz on long runs of coaxial cables. The portable ...
Giga-tronics, TestMart Team On GSA Agreement
Test-equipment manufacturer Giga-tronics and test-and-measurement marketer TestMart have announced a Government Services Administation (GSA) partnership agreement designed to cost-effectively bring Giga-tronics test equipment lines to government and ...
Probe Station Designed For Lifetime Of Testing
The model PS4L probe station from SemiProbe is designed for a lifetime of testing. The versatile microwave probe station can be upgraded over and over to meet growing needs and applications including on-wafer and printed-circuit-board (PCB) testing. ...
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