Today, electronic warfare applications need to detect a wide variety of signals ranging from UHF communications to GPS and other data signals in the L band to high-frequency radar signals that can fall in the X, S, or K bands. Therefore, these receivers need to operate across an extremely wide range of bandwidths to pick up and understand signals anywhere from 300MHz to 20GHz and beyond. However, a basic general wideband antenna isn’t sufficient for these applications because selectivity is needed to determine what you are actually listening to. Additionally, as if the task of designing an ultra-wideband receiver with selectivity wasn’t challenging enough, RF designers are simultaneously facing pressure to reduce the size, weight, and power (SWaP) of these applications as well.

Mark your calendars for Thursday, May 13 at 11 AM EDT to join Knowles Precision Devices, Microwave Journal, and RFMW for a live webinar where we will discuss the filtering challenges for digital broadband receivers in electronic warfare applications.

Over the last four decades, the number of devices that need to maintain mission-critical satellite communications (satcom) has rapidly grown. At the same time, the information transmitted on these devices has become increasingly more complex. As a result, the RF circuit building blocks that make up satcom technology have been through many changes to accommodate the latest advancements in the industry including miniaturization, increased reliability, and the ability to rapidly transmit more complex data.

Let’s explore the following four RF design trends we’ve identified based on our 40-years of expertise in the RF industry that are helping satcom design engineers meet the demands of the many industries relying on their devices today.

Before small cell technology took its place as a central component to realizing the promise of 5G networks, it played an important role in helping to improve the coverage and capacity of 4G. These mini base stations could be installed in discrete locations like on buildings or streetlights and became part of heterogeneous networks—together with traditional macro base stations—to improve service in high-traffic locations such as sporting events and concert venues. In this pursuit, small cells have proven valuable for extending signal penetration and increasing wireless density and these small, lightweight devices will continue to be a key technology for the data-intensive transition to 5G. 

As the demand for more network capacity, improved network performance, and more reliable coverage are all growing, operating in the mmWave spectrum is becoming an increasing more attractive option. To address this demand, the use of 28-GHz small cells, which are compact, lightweight devices mounted on outdoor equipment such as lampposts or telephone poles, is becoming a practical and affordable way to deploy 5G in the mmWave spectrum.

As 5G innovation forges on, radio systems continue to emerge. Each system has a range of requirements, including specific RF filter performance needs, and it’s up to the 5G FR2 Ecosystem of suppliers to meet that demand. In response, Knowles Precision Devices (KPD) supports a wide variety of 5G radio applications.

On Thursday, April 16 at 11am EDT Knowles Precision Devices and Microwave Journal will host a live Webinar about the practicalities of building a 28 GHz small cell for 5G applications.