Since the advent of Network Synthesis Theory at the turn of the last century, filter designers have been developing ever more sophisticated solutions to translate polynomial transfer functions into working, physical components.

This application note aims to explain test procedures and give recommendations towards characterization of the relevant parameters for active phased array antennas and their passive subsystem, as often used in applications for Mobile Communication and RADAR.

Mechanical integration of microwave components often becomes the last step while addressing manufacturing considerations for system-level designs. In many cases, the electrical design is analyzed, boards built, designs reverified, then mechanical engineers fit everything into the final package. This paper shows how component manufacturers can help solve system-level packaging problems using Airstrip technology.

Solid-state technologies such as gallium nitride (GaN) are transforming satellite communications (satcom). GaN’s advantages of high RF power, low DC power consumption, high reliability and smaller size (which reduces system weight) are opening new markets and revolutionizing the RF front-end (RFFE) in existing satcom applications.

Amplitude resolution is a key specification for digitizers. How is this specification matched to the measurement requirement? What are the technical tradeoffs involved in the selection of digitizer amplitude resolution? Having made such a selection what can be done to improve the resolution of the acquired data? Find the answers!

Quality digital down conversion (DDC) is challenging with high-speed time-interleaved analog-to-digital converters (TIADC) due to frequency response mismatches of sub-ADC slices, which cause spurious components. This paper describes a novel method for real-time DDC with slice mismatch equalization.

Aperture tuning is essential in enabling smartphones to operate efficiently over increasing RF frequency bands and support transitions to 5G, but implementation requires in-depth knowledge. In Qorvo’s new e-Guide, learn how to apply this method to your board design with this deep-dive look at aperture tuning.

Network operators are deploying active mmWave antennas in unprecedented volumes, fueled by emerging 5G wireless networks.  Silicon ICs are enabling operators to meet the challenging performance, reliability and cost goals. This paper covers several key considerations for active mmWave 5G antennas and how silicon ICs are addressing the operator needs.

This white paper introduces some of the fundamental theory behind beamforming antennas. In addition to these basic concepts, calculation methods for radiation patterns and a number of real world measurement results for linear arrays are shown.

In this White Paper Knowles Precision Devices reviews some of the areas of 5G communications that will be implemented in the millimeter wave (mmWave) region of the RF spectrum and provides a guide to available RF filtering options at these frequencies.