Radar/sensor technologies and capabilities

Antennas

For over five decades, SELEX Sistemi Integrati designed, developed, built and tested many antennas: from reflectors to passive/active phased-array antennas , mainly from L through X-Band.

SELEX Sistemi Integrati has vast experience in designing phased array antenna elements, radomes, microwave beamformers, phase shifters, signal and control distribution networks, antenna controllers, in order to provide optimum performance over wide steering angles, meeting high profile customer requirements and to maintain and improve the related technologies and capabilities:

Electromagnetic Modelling Capabilities using Proprietary/Commercial Tools
Smart Skin Antennas, Tile concept and Ultra Wide Band/Scan Antennas for multifunction radar systems design capabilities
Anechoic Chamber Near Field facilities are specially designed and automated, achieving the convenience and speed required for accurate data gathering and reduction, focusing in Antenna Test, Fault Diagnosis and Calibration.

Mechanical Department

Mechanical Department is involved in the design of Radar Systems from the beginning of the project in order to meet the requirements regarding the physical and functional characteristics of the units and of the entire system.In particular, dimensions, weight, thermal behavior and transport requirements are the main issues to be analysed.
The analysis is performed by simulation techniques starting from solid model and virtually applying to it loads and temperatures to simulate the real behavior in an integrated environment following a virtual testing logic.
Principal items designed in the department are antennas, cabinets, pallets, shelters and rotating platforms.

High Performance Receiver

For modern Radar Sensors, SELEX Sistemi Integrati design and develop High performance Receivers starting from Front End up to advanced Digital Signal Processor.

SELEX Sistemi Integrati has a long experience in developing Transmit/Receive modules for electronically beam scanning antenna array, analog and digital beam forming and compact multiple receivers for last advanced Radar technology.
High performance Receivers and related waveform and frequency synthesizers has been realized in many classical radar bandwidth starting from VHF to millimeter band with high dynamic range, low noise figure and high selectivity.

TECHNOLOGIES

SELEX Sistemi Integrati has a broad range of internal capabilities in order to choose the best technology to match the specific requirements.
Receiver Designs can take advantage of:

State of the art GaAs and GaAn foundry for MMIC design and development
Microelectronics thick and thin film capabilities and advanced LTCC and HTCC multilayer for packaged monolithic and multichips assembly
Multilayer PCB with mixed SMT, Ball Grid Array and Flip Chip technologies
Photonic technology for design and development of very high speed signal processing components and subsystems such as A/D Converter at microwave frequency high bit rate data transfer, radar transponders and new generation of high frequency very low noise oscillators
Surface acoustic wave devices capabilities for high quality resonators, filters and analog waveform expanders and compressors
Latest generation CAD, CAE software tools for MMIC, component design and system simulation

PRODUCTS / SUBSYSTEMS

High Dynamic range linear receivers
Constant phase logarithmic receivers
Trasmit / Receive modules
Analog and Digital beam forming
Fast switching state of the art low phase noise frequency synthesizers
Digital waveform generation
Low phase noise oscillators and frequency multipliers
Phase invariant analog RF attenuator (STC)

Technical papers Integrated system technologies Radar/sensor capabilities&technologies R&D projects Enabling technologies Emerging technologies Collaborations with Universities Intellectual property Glossary

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