Antenna Systems & Technology - Fall 2016 - 15

SOFTWARE / SYSTEM DESIGN NEW PRODUCTS & SERVICES While this all sounds reasonable, it does pose a challenge. For multi column antennas, such as the TTTT, the array factor is determined by the column spacing, phase, and amplitude distribution. The column spacing is the most commonly debated factor here. Figure 5. Values provided to BTS vendors * If set to 0.5 (narrow) we get the best beam steering with degraded MIMO. * If set to 1 (wide) we get the best MIMO but with larger steering grating lobes. It's important to strike a balance between the resulting grating lobe and MIMO performance. Conclusion We rarely get to truly examine base station antennas, and as such, misconceptions about the technology have grown into industry-wide myths. However, I hope this article has help cleared some from your mind, and helped you to understand some of the antenna industry's best kept secrets. Dr. Mohamed Nadder Hamdy is director of wireless network engineering for CommScope, based in Dubai. Prior to joining CommScope, Mohamed worked for Etisalat, starting in 1997, in Abu Dhabi, Cairo and Lagos. His last role there was the director of Mobile Networks Technology Strategy, outlining future strategies for small cells, spectrum bands, antennas, LTE CA, VoLTE and others. For more information about CommScope, please visit www.commscope.com. September 27-28, 2016 DONALD E. STEPHENS CONVENTION CENTER // ROSEMONT, ILLINOIS register now! PASSES ARE FREE FOR A LIMITED TIME! Use code ANTENNA for a free Expo Hall Pass during Advance Rates! AS THE GROWTH OF THE SENSORS MARKET CONTINUES TO EXPAND AND GROW, SENSORS MIDWEST WILL BRING TOGETHER THOUSANDS OF ENGINEERS IN THE MIDWEST MARKETPLACE LOOKING FOR ACCESS TO THE LATEST SENSOR TECHNOLOGY ADVANCEMENTS AND OPPORTUNITIES TO CONNECT WITH THE AREA'S GREATEST TECHNOLOGY LEADERS AND SUPPLIERS. The 2-day event will feature: EDUCATION THEATERS directly on the Expo Floor featuring cutting-edge trends & applications, case studies, and demos from the industry's leaders and experts 65+ EXHIBITORS showcasing their latest sensing technology and products PLUS - Sensors Midwest and Embedded Computing Design have partnered together to bring attendees the Industrial Internet of Things (IIoT) University - one full day of technical training aimed at designers of IIoT products and systems NETWORKING EVENTS that will bring attendees and exhibitors together from both shows to discuss sensing challenges, trends, topics, and solutions INTERESTED IN EXHIBITING? CONTACT: CAL GROTON Group Director 617-219-8375 | cgroton@questex.com www.AntennasOnline.com JOE ZUCCERELLA Director, National Accounts 617-219-8366 | jzuccerella@questex.com WWW.SENSORSMIDWEST.COM PRODUCED BY: Fall 2016 OFFICIAL PUBLICATION: CO-LOCATED WITH: Antenna Systems & Technology 15 http://www.commscope.com http://WWW.SENSORSMIDWEST.COM http://www.AntennasOnline.com

Table of Contents for the Digital Edition of Antenna Systems & Technology - Fall 2016