Our latest eBook LTE Best Practices Download

All topics

Interference Isolation Techniques for Transmitters and Receivers in Antenna Systems

Achieving sufficient isolation The correct degree of isolation between transmitters and receivers can be implemented by one of two methods: 1) Use two antennas, physically separated by a given distance, or; 2) Use the appropriate duplexer with a single-antenna system. Let’s examine the first option of two physically separated antennas. Within this option, there are […]

Wireless 24 August 2016

How To Overcome Interference Challenges In Duplex Communications?

How isolation helps overcome challenges in duplex communications? In duplex RF systems, transmitting and receiving frequencies are close to each other. In addition, the antennas will also be physically close, or even share a single antenna. This results in two main sources of interference  – receiver desensitization and transmitter noise. How can we overcome these […]

Wireless 17 August 2016

Isolating Sources Of Interference In Wireless Systems

Example Sources of Interference: An RF communications system that employs simultaneous, two-way flow of voice, data or other information is called a duplex system. Duplex communications systems combine multiple transmit and receive channels on a shared antenna, with information flowing both ways at the same time. Imagine the simultaneous flow of traffic on a busy […]

Wireless 10 August 2016

Remote Radio Head (RRH) & Their Advantages

A new kind of remote control: In the innovation game, improvements often come in small steps. But, every now and then, a quantum leap takes place, changing our ideas of what’s possible. In the case of cellular base station technology, an innovative and increasingly popular approach to its basic architecture means more performance for fewer […]

Wireless 3 August 2016

Amplification Methods For Co-Siting Solutions

Amplification: Another technology that makes co-siting possible is amplification. There are several ways amplification can be used in support of the co-siting devices, expanding their utility, power and range. Single carrier power amplifier: One of the hybrid combiner’s drawbacks is its high rate of insertion loss for both TX and RX signals. One way to […]

Wireless 27 July 2016

Co-Siting Solutions: Multi-band and Same-band Combining

What is Multi-Band Combining? Multi-Band Combining is a method of frequency multiplexing. It takes advantage of the fact that feeder cables are naturally well suited to being shared by multiple frequency bands. In other words, multiple base station services can be funneled into a single feeder cable that runs up the tower to the antennas. […]

Wireless 20 July 2016

An Overview of Co-Siting Solutions

Challenges with Co-siting Solutions: If you’ve ever tried to get more use out of the space in your home by combining a home office with a guest bedroom, you may not have been entirely satisfied with the results? Sure, you’ve saved space by making one room do the job of two, but you probably found […]

Wireless 13 July 2016

The Concept of Cellular Base Station Antennas

Cellular antenna concepts: Cellular antennas are a familiar feature in nearly every corner of the world. In many cases, these are cellular networks that bring new connectivity where it had never before been possible – and these connections depend on cellular base station antennas. In cellular base stations, there are two basic antenna types currently […]

Wireless 6 July 2016

How To Increase Antenna Signal Strength Through Design

Vertical and horizontal antenna radiation patterns: All antennas, regardless of polarization, have three-dimensional radiation patterns. If the pattern is extended in all directions equally, the resulting shape would be a sphere, with the antenna at its center. The polarization of the antenna determines which portion of that sphere represents an antenna’s actual pattern. Slicing the […]

Wireless 29 June 2016

The Quest For A Stronger Signal Strength With Base Station Antennas

Getting the signal across: Today, the quest for a stronger antenna signal strength – or for some, any signal strength at all – has become a routine part of our daily lives. We’re always searching for a way to get more “bars” on our cell phones or faster Wi-Fi connections on our computers. Whether you’re […]

Wireless 22 June 2016