About the Author
Ray Butler is vice president of Wireless Network Engineering at CommScope, responsible for wireless technical sales leadership in outdoor RF products. Before, Ray led the R&D team responsible for base station antennas, filters, combiners, remote radio heads and RF power amplifiers. He previously worked for Andrew Corporation as vice president of base station antennas engineering, and systems engineering and solutions marketing, respectively. He has served as director of national RF engineering with AT&T Wireless and vice president of engineering, research and development, and international operations at Metawave Communications, a smart antenna company. Ray was technical manager of systems engineering for Lucent Technologies Bell Laboratories, having also held other management positions responsible for the design of RF circuits, filters and amplifiers. Ray holds a bachelor of science degree in electrical engineering from Brigham Young University and a master of science in electrical engineering from Polytechnic University.
Implementing 5G has its technological challenges. It will require exploiting millimeter wave frequency bands, which has been formidable so far. In this video blog post, Ray Butler explains more about the 5G technology hurdles the wireless industry is working to surmount.
Many operators are in the midst of evolving to the next level of sophistication in antenna configuration, planning the move from 2-way receive to 4-way receive. 4X2 MIMO will further improve the traffic carrying capability of the RF path and increase the capacity of the link from the base station to the mobile. The 4-way receive configurations will also ease the transition to 4X2 downlink MIMO. Ray Butler explains more in today’s blog post.
Need help selecting the right base station antennas for your LTE network? Today’s blog post by Ray Butler introduces a new white paper that can help. Co-authored with Sprint, the new white paper provides a free overview of antennas and their application in practical configurations for various types of LTE antenna techniques. See the blog post for more information about why this is so important.
Ray Butler authored a chapter in CommScope’s new LTE Best Practices ebook; today, he authors a blog post. In the blog, Ray explains how high performance base station antennas that radiate signal in tight patterns are essential for LTE to function fully. Networks with poorly designed or improperly deployed antennas will suffer from reduced data throughput and degraded user experience.
Passive intermodulation (PIM) has gone from a vaguely understood but accepted nuisance to a major concern that wireless service providers seek to manage and minimize. When it comes to field-testing by installers and services technicians, the awareness of PIM and how to properly detect it may not be as strong as it needs to be. CommScope has developed a new white paper that addresses how to accurately field test for PIM and neutralize the variables that may affect test results.
There are some practical considerations to take into account in any small cell deployment. One of them is how to achieve maximum data throughput in areas with high data usage by customers. Another involves acquiring the necessary approvals to install small cell sites. CommScope’s Ray Butler discusses these matters here and at the LTE North America 2012 conference on Wednesday, November 14.
Andrew Solutions participated in the recent “Mobile Broadband: Innovation and Opportunity” event hosted by RCR. Questions about the status of 3.5G and 4G network roll-outs, the role and requirements of in-building systems, and the need for more green, energy-efficient network solutions were obviously important topics. PIM interference in next generation networks, however, remains one of the industry's top concerns.