Guest Blogs

Just the Facts, Maam: Key Considerations for Selecting and Installing Antennas for Public Safety Vehicles

Adam Alevy, Vice President of Technology,
Lairds Infrastructure Antenna Systems Group

Some people get nutty about Star Wars collectibles. Some people are bonkers for the Boston Red Sox. Others lose themselves in old stamps from countries that dont even exist anymore. That is all well and good, but I geek out when it comes to old radio and antenna technology, especially the wireless systems that were in the police cars from back when I was growing up. All the better if they resemble the ones from the cop shows with chase scenes that were all the rage on tv thenon all three channels being broadcast at the time! Websites like this one about public safety radios from that period are essentially a virtual museum of wireless technology from the 60′s, 70′s and 80′s. It was a simpler time for sure: One police car, one radio and one antenna. Continue reading

When Tower Design Meets the Real World: How Antenna Selection Must Adapt During the Site Development Phase of a New Tower Build

John Keating, P.E., EVP of Market Operations
Centerline Solutions

This article is Part 2 in a series that Antenna Systems & Technology has invited me to write about how antenna selection evolves over the course of a new wireless tower project, impacted by factors that emerge during each of the three phases of these projects:

  • The initial RF design and antenna selection phase
  • The site development phase, which includes site Engineering, leasing and permitting; and
  • The final phase of tower construction and testing Continue reading

The Many Benefits Of Testing Your Antenna

Glenn Robb, Principal Engineer
Antenna Test Lab Co.

Your customers must succeed for you to succeed. Customers expect your system or products to perform their best at all times. In this RF world, that means your antennas have to shine! Not only will great antennas contribute to joint vendor/customer success, they help your company rise above the competition of mediocre or even bad antenna competition. Continue reading

What Does 5G Mean for IoT?

Chris Anderson, Vice President of Engineering
Taoglas

The universal goals of 5G are to decrease latency, provide at least a 10 times speed increase over LTE, and service up to a million Internet of Things (IoT) devices per square kilometer. To meet these goals,5G networks will look a lot different than any existing 3G or 4G network. Deploying technology solutions in the millimeter wave spectrum has completely different requirements and challenges from anything currently commercially deployed. Continue reading

The Ripple Effect: Impacts of Antenna Selection on the Stages of a New Wireless Tower Build

John Keating, P.E., EVP of Market Operations
Centerline Solutions

Every decision has consequences. Like ripples in the surface of a pond that travel outward, each choice influences everything that comes afterward. These ripples intersect with those created by other decisions, forming new patterns in the process. Standing on the shore of a pond and watching the waters surface probably isnt the first thing that comes to mind when you think of wireless tower projects, but its an apt metaphor for the way antenna-related decisions throughout a tower project impact how the process unfolds and reshapes the next phase of the project. Continue reading

Selective Deposition of Silver Layers via Jet Metal Technology for the Production of Antennas

Koen Staelens, Business Development Manager
Jet Metal Technology

Since the start of the company in 2007, Jet Metal Technologies focused its efforts to place its unique in-line metallization technology by spraying on the market for decorative applications in cosmetic and spirit bottle applications. In such decorative applications a layer stack consisting of a base coat varnish (15-20 m), a thin silver layer (~80 nm) and a protective top coat varnish (15-20 m) is used. The many advantages of the Jet metal technology led to great success as nearly 20 industrial lines in Europe and North & Middle America were installed and produce annually millions of metallized spirit bottles, scent bottles and caps for big players like Coty, Hennessy, LOral, Louis Vuitton, Procter and Gamble and Pernod-Ricard. (see Figure 1) Continue reading

Aperture Tuning, the Best Technique for Closed Loop Tuning

Paul Tornatta,VP RF Systems and Antenna Engineering
Cavendish Kinetics, Inc.

Modern Smart Phones are packed with useful features. In order to maximize the user experience, the performance of the radio must be optimized at all times. Antenna Aperture Tuning is a method used by all top-tier Smart Phone makers for optimizing the antenna performance across several frequency bands of operation. The next step in antenna optimization is closed loop tuning. In closed loop tuning, some performance metric (often antenna reflection coefficient) is used to change the response of the RF front-end to dynamically compensate for variations in usage including compensating for the detuning effects of the users head and hands during phone operation. Dynamic tuning to compensate for head and hand effects is not a new concept. Most RF engineers believe the best way to implement closed loop tuning is with an impedance matching network, but if aperture tuning, not impedance matching, is the best way to tune an antenna, then why not use aperture tuning for closed loop tuning as well? Continue reading