FMCW mm Wave detection haiden object

W-band FMCW Sensors for Remote Detection

of Hidden Objects and Persons

(Prof. Y. Pinhasi, Prof. B. Kapilevich, Dr. M. Einat)

Clutte

r

Man target

RX

TX

IF

LO

RF

FMCW

Source

15-16

GHz

DAQ LNA

Power

divider

Mixer

Multiply

x 6

Multiply

x 6

target

The offset angle of the radar

Antenna

Antenna

Block-diagram of the sensor Experimental setup “Solid Works” art-design Recorded signal in IF channel before processing After processing

Reception parameters: Receiving antenna gain: 35dBi Base band Low pass filter: 3KHz Video amplifier:10dB 12bit DAQ Sampling rate: 22 KHz Lab view controlling software MATLAB processing program

Transmission parameters: Synthesizer frequency range: 15-16 GHz, frequency span = 200MHz, multiplication = 6 Transmitted frequencies: 90 -96 GHz Linear FM Frequency deviation:1.2GHz Sweep time: T= 0.25sec Transmission Power: 10mW Transmitting antenna gain: 35dBi

Lab-View Interface

Experiments: In-door and Out-door

• Detecting a person at distance 60m

• Detecting electric power line in presence of clutters

• Gun covered by a fabric

MATLAB graphs of reflections

from different targets detected

within 60-meter from the radar

B.Kapilevich, Y.Pinhasi, M.Anisimov, B.Litvak, D.Hardon, “FMCW MM-wave Non-Imaging Sensor for Detecting Hidden Objects”, Spain, 2011, IEEE MTT-S, Int. Workshop on MMwave Technologies, pp.664 -667,

B. Kapilevich, Y.Pinhasi, M.Anisimov, B.Litvak, D.Hardon, Y.Wool, “Detecting power lines using

330GHz FMCW sensor”, Microwaves, Communications, Antennas and Electronics Systems

(COMCAS), 2011 IEEE International Conference on , 2011 , pp.1 – 4, Tel Aviv.

Research students: M. Anisimov, Y. Wool, A. Etinger, N. Balal

RF Microwave MMwave Lab

Noise floor

Corner

reflector

Adult

Child