Innovative RF System Solutions

VISAT's 3D vertically integrated RF front end architecture.

 

SCALABLE RF FRONT END TECHNOLOGY

 

During the last ten years, EMAG Technologies Inc. has arduously pursued the development of a "generic" RF front end architecture that can be scaled over different frequency bands. The goal is to realize a modem-agnostic architecture the can be readily scaled, reconfigured and "programmed" to meet different power requirements, and at the same time, provide a versatile beam steering capability. In pursuit of that goal, EMAG Technologies Inc. has developed a patented antenna technology dubbed VISAT™ (Vertically Integrated Scalable Array Tile).

VISAT utilizes a compact, three-dimensional, vertically integrated architecture for active electronically scanned antenna (AESA) systems based on low-cost printed circuit board (PCB) manufacturing processes. A VISAT tile is a complete self-contained RF front end with DC, IF and digital control (SPI) connectors. The extremely low-profile stack contains all the amplification, frequency conversion and beam control stages. VISAT tiles can be tiled together and create larger apertures for higher aperture gains. A VISAT tile has a built-in thermal management system and can provide unmatched levels of SWaP (size, weight and power). EMAG offers VISAT solutions for a wide frequency range from L band (~1GHz) to Ka band (~40GHz).

 

Low-Cost Integrated RF Systems

A 256-element K-band AESA based on the VISAT technology.

The VISAT architecture allows several different types of functions to be integrated into a single aperture. A shared multifunction aperture provides numerous system integration opportunities such as combining a communications front end with a precision tracking system to address the beam pointing challenges of directional data links. A few examples of VISAT applications include:

  • Secure or covert directional communication systems
  • Tactical data links in networked battlefield environments
  • Satellite communications on-the-move
  • Cooperative asset tracking
  • Projectile guidance systems
  • Collision avoidance radar systems

EMAG Technologies Inc. has developed a wide range of communications, radar and tracking solutions based on the VISAT technology. Our scalable RF front end solutions are modem-agnostic and can easily be integrated and interfaced with your software-defined IF or baseband back ends. It is as simple as a few connectors: DC, IF, and digital control lines. The VISAT technology can give you a significant competitive edge from a cost-performance standpoint. Due to the proprietary nature of the technologies involved, we encourage you to contact us and discuss your specific requirements for further exploration of possible opportunities.