IN MY OPINION
IEEE 802.11ac: Challenges for Manufacturing TestKeeping the Right Perspective on Timing

By E.L. Fox, Jr.
Fox Electronics


Discussions about technology have the power to clarify or the power to confuse, depending on the perspective they take. And when you overlay business desires for smaller, more powerful, more economical, and more energy-efficient components, it becomes even easier to overlook the underlying physics behind technology options.

Read More...
FROM WHERE WE SIT

LightSquared:

LightSquared:
The Show’s Over
…Or Should Be
By Barry Manz

There are a lot of very technically astute people at the Federal Communications Commission. Many have decades of experience at every level of RF and microwave technology. How then might LightSquared’s proposal for a satellite/terrestrial LTE network have ever gotten past its first hurdle? Even a cursory inspection of the plan, in which the company's network would operate extremely close to GPS frequencies at L-band, makes interference to GPS devices almost a certainty. Read More...


CURRENT ISSUE PRODUCTS


Microwave Precision Fixed Attenuator
The YAT-1+ is a microwave precision fixed attenuator with a wide bandwidth of DC to 18 GHz, excellent attenuation accuracy and flatness, and a miniature package (MCLP™ 2 x 2mm). Applications include cellular, PCS, communications, radar and defense.

Mini-Circuits

New 3 dB 90º Hybrid Coupler
Model QH9141 is a connectorized hybrid coupler covering the 150 to 2000 MHz band. Rated for 150W CW, this unit will tolerate severe port-to-port unbalances while operating with an insertion loss of only 0.85 dB maximum. Operating temperature range is -55 to +85ºC.

Werlatone

New 4 GHz Oscilloscope
The R&S RTO1044 4 GHz high-performance oscilloscope with its 20 Gsample/s sampling rate addresses a wide variety of applications. It is ideal for analyzing fast signals and steep edges. The unit can handle different data interfaces up to a data rate of 1.6 Gbps.
Rohde & Schwarz

Resistive Power Divider/Combiner
Model 151-270-002 is a 2-way, 50 ohm resistive power divider/combiner that has a DC to 6 GHz operating frequency range, 1.50:1 VSWR, and SMA female connectors. It exhibits 1 dB nominal insertion loss (above theoretical loss), +/-0.5 amplitude tracking, and more.
Broadwave Technologies

See all products in this issue


December 2010
VIEW FROM THE TOP


Scott N. Talbot
General Manager, EM Research, Inc.

Q: Last year, we asked what impact the worldwide economic crisis had on the markets you serve and on how you run your business under these conditions. One year later, what is your perspective? Are things getting better? If you sell into the aerospace and defense market, what are your projections for the coming year?

A: While celebrating our 20th anniversary, 2011 will present challenges caused by the worldwide economic crisis. However, our perspective has remained the same as last year. It is still important to respond to the specific needs of our customers. We continue to use our resources to develop innovative products to support existing and emerging technologies.

Due to the recently announced efficiencies initiative by Secretary of State Robert Gates, the aerospace and defense markets will be going through a period of transition. No longer will contracts be awarded based on the latest and greatest technology. They will be aligned to the objectives of the “efficiency initiative” and awarded to support solutions that are “relevant, competitive and agile for the next generation of conflicts.” This will require a more streamlined and cost effective approach to solving problems of today and of the future.

Q: Do you participate in social networking sites such as Facebook and/or Twitter? If not, why not? If yes, what benefit do you feel comes from being on one or both of those sites?

A: We actively participate in several social networking sites including Facebook and Twitter. We believe that these sites provide another opportunity to get our “message” out. We also foresee the potential in social media as it grows in popularity within our industry and will use it as a customer relationship management tool.

Q: There remains a serious shortage of RF engineers out there – what’s the solution? Is your company involved in programs that might promote or encourage talented engineering students to pursue a career in the microwave industry?

A: The long-term solution for all technical industries is to continually encourage our youth to get a good education and support relevant programs. The University of Nevada, Reno has a great engineering program. We are actively involved on advisory boards and have an input in the curriculum. Involvement in the community and education system by participating in career fairs, internship programs, and giving talks and demonstrations to high school and junior high school students is an ongoing emphasis.

Q: Now that the Far East is growing its own RF and microwave component and subsystem manufacturing, have you seen any “inbound” competition?

A: We continue to see competition from numerous areas. In order to stay ahead of the competition, we focus on bringing new technology to market quicker. This allows our customers to enjoy a technical competitive advantage in their markets as well.

Q: If you could list three markets or technologies that will drive the industry in the next two years, what would they be?

A: As we continue to work through the economic crisis, it is important to offer cost effective solutions, which meet the more stringent requirements of industry. Higher data rates with increased bandwidths require continued product enhancement
.
Q: Has the enormous power of the FPGA had an impact on your designs?

A: Ultra-high speed GSPS FPGAs require very stable and low noise reference clocks. EM Research has significantly improved our products (ZLX, CLX, and PLXO Series). These parts offer exceptionally low phase noise that meet or exceed the requirements established for FPGA references.

www.emresearch.com
 

 

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March 2012

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WHITE PAPERS

Switch Solutions for Systems with Low PIM Requirements
Dow-Key Microwave has invested in R&D for new RF switch products designed specifically to reduce intermodulation (IM) in coaxial switches.
Dow-Key Microwave

How to Specify RF and Microwave Filters
Covers cavity, ceramic, LC, crystal and helical filters.
Anatech Electronics

Establishing An RF Safety Program
Topics include basic RF safety, standards, monitoring instruments, performing an emitter inventory, and the steps required to create a program.
Narda Safety Test Solutions

Mounting Considerations for Medium Power Surface-Mount RF Devices
Covers all factors that must be considered when mounting SMT devices.
TriQuint Semiconductor

Biasing MMIC Amplifiers
How to bias MMICs along with theory and techniques.
Mini-Circuits


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