67f68f1ec363e4b9d7725065 Quantic Wenzel 1540 800

5 Critical Questions to Ask When Selecting Fixed Frequency Sources for Digitally Reprogrammable Multifunction AESA Systems

April 15, 2025
Choosing the right fixed-frequency source is critical for AESA systems. Our white paper outlines five key questions RF engineers must ask to ensure optimal phase noise, stability, and spectral purity for radar, EW, and comms. Download now to make the right choice!

Today’s Multifunction Active Electronically Scanned Array (AESA) systems are engineered and manufactured to simultaneously perform different operations, such as radar, electronic warfare (EW), and communications functions. One of the most critical elements of digitally reprogrammable multifunction AESA systems are the fixed-frequency sources. In short, fixed-frequency sources take one or more precise timing reference signals as inputs, then convert and synchronize the timing references within critical AESA systems. The phase noise, stability, spectral purity, and jitter of fixed-frequency sources influences the range, resolution, and accuracy of digitally reprogrammable multifunction AESA systems. To help RF engineers make the right selection, we’ve outlined our top five questions to ask and key factors to consider when selecting fixed-frequency sources for digitally reprogrammable multifunction AESA systems.

This content is sponsored by:

Sponsored Recommendations

Explore cascaded amplifiers, revealing how a single driver can dominate performance in a four-parallel setup and how optimized input power can reduce AM-to-PM distortion for maximum...
See how an X-band SSB upconverter built with Mini-Circuits components uses IQ mixing to suppress unwanted sidebands and boost spectral efficiency for applications from 5G to radar...
Mini-Circuits VP of Engineering Joe Merenda explains additive phase noise (APN) in RF amplifiers, covering theory, measurement, specifications, and small vs. large signal behavior...
The new M4SWA4-34DR+ SP4T MMIC switch delivers fast, wideband signal routing from DC to 30 GHz, with superior power handling, quick switching, and cost advantages over SOI devices...