Home Tag "Analog Devices Inc."

RF Converters Enable Efficient Multiband Radios for Next-Generation Wireless Base Stations

by John Oates, Analog Devices, Inc. To support rising wireless data demand, modern base station radios are being designed to support multiple E-UTRA bands, as well as carrier aggregation techniques. These multiband radios employ next-generation, GSPS RF ADCs and DACs that allow frequency agile, direct RF signal synthesis, and sampling techniques. To deal with the […]

Power Supply Management of GaN MMIC Power Amplifiers for Pulsed Radar

by David Bennett and Richard DiAngelo, Analog Devices, Inc. Systems that incorporate highly integrated and highly sophisticated, high power radio frequency (RF) GaN power amplifiers (PAs), such as pulsed radar applications, are a constant challenge for today’s digital control and management systems to keep up with these ever-increasing levels of sophistication. To compete in this […]

Receiver IC Blend Mixers, Synthesizers, and IF Amps

by Marc Goldfarb, Ben Walker, Russell Martin, Tom Bosia, Ed Balboni, and Dragoslav Culum, Analog Devices, Inc. Wireless base stations were once contained in large, climate controlled spaces—but now, they could be mounted anywhere. As wireless network service providers attempt to achieve coverage everywhere, the pressure is on base station component suppliers to provide more […]

Improved DAC Phase Noise Measurements Enable Ultra Low Phase Noise DDS Applications

by Peter Delos and Jarret Liner, Analog Devices, Inc. In radar applications, phase noise is a critical performance metric for systems requiring high clutter attenuation. Phase noise is a concern for all radio systems, but radar in particular can require phase noise performance at frequency offsets much closer to the carrier than a communication system. […]

Step-Down Silent Switcher® 2

The LT8650S is a dual 4A, 42V input synchronous step-down switching regulator. Its unique Silent Switcher 2 architecture uses four internal input capacitors as well as two internal BST and a single INTVCC capacitor to minimize the area of the hot loops. The design dramatically reduces EMI emissions. ANALOG DEVICES, INC. (28)

VFTT – Analog Devices

John Cowles, GM of RF and Microwave Business Unit, Analog Devices MPD: Millimeter wave frequencies will be used for cellular communications for the first time in 5G. What challenges and opportunities does this present for the microwave industry? JC: The emergence of the millimeter wave 5G frequencies at 28 and 39 GHz for cellular communications is very […]

Transmit LO Leakage (LOL)—an Issue of Zero-IF that Isn’t Making People Laugh Out Loud

by Dave Frizelle, Analog Devices Inc. There are several major advantages to zero-IF architecture. However, there are also some challenges that need to be overcome. Transmit local oscillator leakage (referred to as transmit LOL) is one such challenge. Uncorrected, transmit LOL will produce an unwanted emission within the desired transmission, potentially breaking system specifications. This […]

Challenges for Electronic Circuits in Space Applications: Part Two

by Chris Leonard, Analog Devices, Inc. Part 1 of this article examined the challenges engineers encounter in implementing circuits for space level applications. Challenges related to the reliability, radiation effects and the ability of electronic devices to tolerate harsh environmental conditions encountered in a constantly changing environment of outer space. We also surveyed the space […]

Challenges for Electronic Circuits in Space Applications: Part 1

by Chris Leonard, Analog Devices, Inc. This article provides insight into the challenges engineers encounter in implementing circuits for space level applications. Concerns about reliability, radiation effects and the ability to tolerate harsh environmental conditions require special attention during the design process to ensure mission success. The global space market is approximately $330 billion. We’ll […]