www.e2v.com

e2v has been developing and producing microwave components for the automotive industry that enhance vehicle security and driver comfort for more than fifteen years.

The Company’s microwave alarm sensors provide superior vehicle security while e2v’s microwave semiconductor diodes are the power behind Adaptive Cruise Control technology.

Vehicle Security

Microwave Alarm Sensors

Alarm sensor

e2v’s alarm sensors are based on microwave technology and are designed to protect the interior of a vehicle without being sensitive to the external environment.

Unlike ultrasonic alarms, e2v’s microwave sensors only react when an unauthorised presence is detected in the car.

Features

• Designed to be fitted behind interior trim
• Microwave beam shaping
• Single or Multiple sensor installation
• Easy installation
• Low quiescent consumption
• Long vehicle battery life in a parked state
• Fits all vehicle platforms

Benefits

• Reduction in false alarms
• Immunity to climatic change
• Insensitive to vibration and impact
• Sunroof/soft tops/windows can be left open
• Programmable detection sensitivity
• Sensor can be hidden from view
• Retro-fitable as a vehicle option

Suitable for all vehicle types including:

• Cabriolets, Convertibles and Roadsters
• Saloons, Touring and SUVs
• Light and Heavy Commercial Vehicles

Driver Comfort

The Power Behind Adaptive Cruise Control (ACC)

ACC radar sensors use millimetre wave technology to detect objects up to 120m in front of the vehicle and adjust the vehicle’s speed to maintain a safe driving distance.

e2v has been at the forefront of millimetre wave technology for over thirty years. The most notable innovations during this time are e2v’s patented Graded Gap Gunn Diode (G3D), a planar packaged Voltage Controlled Oscillator (VCO) and the latest innovation, e2v’s Transmit Receive (TR) Module.

Graded Gap Gunn Diode (G3D)

Graded Gap Gunn Diode

Features

• 50mW of power at 77GHz (minimum)
• Good frequency stability against temperature
• Low circuit phase noise
• Low noise characteristics (both FM and AM)
• Operational across a wide range of temperatures

Benefits

• Works in all weather conditions
• Lower radar costs
• Enhanced system performance
• Highly efficient and reliable

Voltage Controlled Oscillator (VCO)

Features

• Very small outline (10 x 10 x 5mm)
• Hermetic packaging
• Low change in frequency with temperature
• Low FM noise
• Compatible with printed circuit board (PCB) and RF module assembly techniques

Benefits

• Designed for high volume automated assembly
• Low cost, high reliability
• 100% mm-wave tested
• Works in all weather conditions
• Uses e2v's G3D technology in a planar VCO

Transmit Receive (TR) Module

e2v is currently demonstrating a new transceiver (TR) module for 77GHz adaptive cruise control (ACC). Considerable emphasis is placed on low parts count, ease of assembly and test, excellent performance over temperature and straightforward system integration.

This approach is inherently low cost as the entire 77GHz oscillator is assembled into the module as a small (10 x 10 x 4mm), hermetically packaged device.

Benefits

• Small size (50 x 45 x 15mm)
• Low parts count
• Excellent performance over -30 to +85 °C
• Compatible with high volume manufacturing process
• Ease of assembly
• Hermetic packaging

SLIMSENS

SLIMSENS (Short and Long Range Integrated Multifunction Radar and Communications Sensors) is a joint industry, education and UK Government research project, which combines the expertise of e2v technologies, Jaguar Cars, BAE Systems and L.E.W. Techniques.

The aim of this 3 year project is to develop a sensor with short and long range sensing and broadband communications capability within a single unit. This could provide the vehicle with capabilities such as pedestrian detection, improved lane keeping, automated hands-free motorway driving, and the ability to stop the car completely when sitting in traffic and start when the traffic begins to move.

e2v technologies
106 Waterhouse Lane
Chelmsford
Essex
CM1 2QU

T. +44 (0)1245 493 493
F. +44 (0)1245 492 492
E. enquiries@e2v.com
W. www.e2v.com