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.

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...


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

See all products in this issue




Octagon Communications respects the privacy of its customers, visitors, and other users of its We site, This The policy for this Web site and its subdomains is not applicable to other websites you may be able to access from the site, each of which may have data collection, storage, and use practices and policies that differ materially from Octagon’s privacy policy.


By using the site, you agree to the terms of this privacy policy.


We automatically track and collect the following categories of information when you visit our site:

• IP addresses
• Domain servers
• Types of computers accessing the site
• Web browsers used to access the site

Traffic data is anonymous information that does not personally identify. We also use "cookies" to customize content specific to your interests, to ensure that you do not see the same advertisement repeatedly, and to store your password (if applicable) so you do not have to re-enter it each time you visit the site. Octagon uses log files to analyze and administer our site. You remain anonymous in our Web site log files unless you have created a password or other information to access specific portion of the site.

To let you access certain parts of our site, such as signing up for our newsletters, mailing list, or to receive digital editions of the magazine, we require you to provide us with certain information that personally identifies you. This includes first and last name, e-mail address, other contact information, title, occupation, industry, place of employment, and other information necessary to provide a service that you requested. If you communicate with us by e-mail or otherwise complete online forms, any information provided in such communication may be collected as personal information.
Octagon maintains e-mail lists to keep registered persons informed about our company, and we use it to fulfill your requests or to contact you when necessary. We may also use your personal information to send you information that you requested, or to confirm service request submissions.

We may use your e-mail address to keep you informed about events or other items of interest, to notify you of recent updates to our site, or to provide you with product news notification. You may opt-out from our mailing lists by replying to the email message, This opt-out procedure may not be available for transactional or relationship messages, such as e-mails that are necessary to provide you with confirmation of a request, to provide notification of changes of terms of service. We may use your mailing address or telephone number to send you periodic mailings or telephone you to inform you of new products, services, or events. If you do not wish to receive such calls, you may request to be removed from the call list at the time of the call.
We generally do not share, sell, trade or rent your information to individuals or other entities, but may share it with our business partners who assist us by performing core services (such as hosting, fulfillment, or data storage and security) related to our operation of the site. These third parties and business partners have agreed to uphold the same standards of security and confidentiality that we have promised to you in this privacy policy. If you do not want us to share your personal information with any third parties, you may call Octagon at (201) 569-5870 and make your request.

If you do not wish to provide us with your personal information, you will still be able to access and use the entire site but places where personal information is required. If you do not wish to receive information and promotional material from us or from any third parties, please email We will keep your personal information private and will not share it with third parties, unless we believe in good faith that such disclosure is necessary to comply with relevant law or to respond to a court order or other legal process served on Octagon or to protect and defend our rights or property.

Your personal information is stored on secure servers that are not accessible by third parties. Any information you transmit to us is via secured and encrypted channels if you use a similarly-equipped web browser.

You must promptly notify us if your user name or password is lost, stolen, or used without permission. In such an event, we will remove that user name or password from your account and update our records accordingly.

Our Web site contains links to other Web sites. We are not responsible for the privacy practices or the content of such sites. Our provision of a link to any other Web site is for your convenience and does not signify our endorsement of such other Web site or its contents. We have no control over, do not review, and cannot be responsible for these Web sites or their content.

We reserve the right, at any time and without notice, to add to, change, update, or modify this policy by posting such change, update, or modification on the site and without any other notice to you. Any such change, update, or modification will be effective immediately upon posting on the site. If you object to any such changes, you must cease using the site. Continued use of the site following notice of any such changes indicates your acknowledgement of such changes and agreement to be bound by the terms and conditions of such changes.


We welcome your comments or questions regarding this privacy policy or in general. Please contact us by sending an email to

Octagon Communications
385 Sylvan Avenue
Suite 16
Englewood cliffs, New Jersey 07632
Phone: (201) 569-5870
Fax: (201) 569-6684
E-mail concerning this privacy policy and Web site:



You Can
Search by Number:

  All ads, articles, and products in printed issues of MPD have a number. Just look for the red arrow in the ad or at the end of the article or product description.


MMD March 2014

Previous issues click here


The Design of Ultra Narrowband Amplifiers Using Small-Signal Varactor Upconverters
This paper presents a method of realizing tunable microwave amplifiers with ultra narrow bandwidths that can be less than 0.5% by the use of a varactor up-converter (UC).
Planar Monolithics

Directivity and VSWR Measurements
Return loss and VSWR measurements are complicated by the finite performance of the directional device used to measure the reflected power. The only accurate and convenient way to make return loss measurements is with a well matched high directivity directional coupler or bridge.
Marki Microwave

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

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.

Home | About Us | Archives | Editorial Submissions | Media Kit (PDF) | Events | Subscribe/Renew | Contact Us
Copyright © 2011 Octagon Communication Inc. DBA MPDigest /, All Rights Reserved.
Privacy Policy | Site Map