The Opportunities and Challenges of LTE Unlicensed in 5 GHz
David Witkowski, Executive Director, Wireless Communications Initiative
In 1998, the Federal Communications Commission established the Unlicensed National Information Infrastructure or U-NII 5 GHz bands. These are used primarily for Wi-Fi networks in homes, offices, hotels, airports, and other public spaces and also consumer devices. U-NII is also used by wireless Internet Service Providers, linking public safety radio sites, and for monitoring and critical infrastructure such as gas/oil pipelines.

MMD March 2014

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Band Reject Filter Series
Higher frequency band reject (notch) filters are designed to operate over the frequency range of .01 to 28 GHz. These filters are characterized by having the reverse properties of band pass filters and are offered in multiple topologies. Available in compact sizes.
RLC Electronics

SP6T RF Switch
JSW6-33DR+ is a medium power reflective SP6T RF switch, with reflective short on output ports in the off condition. Made using Silicon-on-Insulator process, it has very high IP3, a built-in CMOS driver and negative voltage generator.

Group Delay Equalized Bandpass Filter
Part number 2903 is a group delayed equalized elliptic type bandpass filter that has a typical 1 dB bandwidth of 94 MHz and a typical 60 dB bandwidth of 171 MHz. Insertion loss is <2 dB and group delay variation from 110 to 170 MHz is <3nsec.
KR Electronics

Absorptive Low Pass Filter
Model AF9350 is a UHF, low pass filter that covers the 10 to 500 MHz band and has an average power rating of 400W CW. It incurs a rejection of 45 dB minimum at the 750 to 3000 MHz band, and power rating of 25W CW from 501 to 5000 MHz.

LTE Band 14 Ceramic Duplexer
This high performance LTE ceramic duplexer was designed and built for use in public safety communication and commercial cellular applications. It operates in Band 14 and offers low insertion loss and high isolation to enable clear communications in the LTE network.
Networks International

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December 2012

Tim Going
President, StratEdge Corporation

Q: For those of you serving the military market, what do you expect 2013 will bring in terms of opportunities in this sector?

A: We see the adoption, and therefore a lot of broadband use, of gallium nitride (GaN) technology, especially accelerating for radar and radio communication systems and satellite applications. Also, we see further expansion of phased array radar applications which will demand much higher density than previous packaging solutions both for airborne as well as ground and shipboard applications. This is true not just for the United States, but also for international military applications, including activities with NATO allies.

Q: If your company serves the commercial markets, are you encouraged by any particular emerging application or technology?

A: No, we see a flat commercial marketplace for 2013, although we do see a transition, again, from gallium arsenide (GaAs) to GaN for some of the commercial backhaul microwave radio applications and to high power GaN power amplifiers. We don’t consider this an expansion of the marketplace, but rather an evolution of the marketplace. We think that the telecommunications industry is going to be relatively flat in terms of its consumption and, as a result, the test and instrumentation market will also be relatively flat. In 2013 we expect a gradual increase in the automotive sector for microwave applications, primarily for collision avoidance radar sensors in higher end vehicles worldwide.

Q: Last year, we asked what impact the global economic crisis was having on the markets you serve and on how you run your business. What is your current perspective?

A: In 2012 we cut way back on our personnel, ran a very lean organization, and kept that through the first half of the year. We’ve just started to add back slightly, but the direction of the government and economy will determine how much this will continue. Right now we’re forecasting a flat 2013 with zero growth because of the downturn of the European market. The European economy, along with uncertainty in our political situation, military applications, and potential sequestration are causing serious cutbacks or delays in military programs, which will result in reduced or delayed sales. So we’re not optimistic about growth.

Q: What countries or regions do you believe will provide the greatest growth potential for the wireless industry in 2013?

A: We still see a huge build-out of 4th generation wireless infrastructure in the US, which will be a pretty big market for it, although we’re still not projecting huge telecom growth in 2013.

StratEdge is a pretty good indicator for the telecom industry because we sell packages used for testing high frequency ICs to manufacturers of test equipment used in telecom equipment. Our customers tell us that their businesses will be down until next year, so it looks like the telecom industry will be flat. ♦


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Uncertain Times for DefenseOpen’s Systems and Changes in DoD Procurement: This Time It’s Real
By Barry Manz

The U.S. Department of Defense has a well-earned reputation for inertia. Many proposals for change are made – but nothing happens. The COTS initiative, which promised cost savings through the use of off-the-shelf commercial parts, sounded terrific at the time. It heralded a major departure from standard DoD procurement that more or less guaranteed that every system would be different in part because it used parts that were developed from scratch, leading to “one-off” systems that were very expensive. Read More...

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