ST Electronics HB7 HB7 Transceiver User Manual VECHB7

ST Electronics (Satcom & Sensor Systems) Pte Ltd HB7 Transceiver VECHB7

User Manual

1 of 7 X-Band Microwave Motion Sensor Module HB170 Users Manual V1.00 ST Electronics (Satcom & Sensor Systems) Pte. Ltd. 29 New Industrial Road, ST Electronics Paya Lebar Building, Singapore 536213 Tel: (65) 6521 7888 Fax: (65) 6521 7333 Email: agilsense@stee.stengg.com Website: www.agilsense.com ( Regn: 199103901W ) 1. Introduction The HB170 miniature microwave motion sensor is an X- Band Bi-static Doppler transceiver module. These modules are designed for applications in movement detection and speed measurement. The module consists of a Dielectric Resonator Oscillator (DRO), mixer, patch antenna array , and an added Low Noise Amplifier (LNA) at the receiver to achieve longer detection range. This User Manual highlights some important points for application with HB 7 series modules. Figure1: Block Diagram 2. Mounting Header pins can be used to connect the terminals (V1, V2, IF, GND) to the power supply and the amplifier circuits to serve as mounting support. Other mounting methods may be used. Caution must be taken to avoid pressure or stress being applied to the chassis of the module as it may cause performance deterioration. Figure2: Outline Diagram
2 of 7 X-Band Microwave Motion Sensor Module HB170 Users Manual V1.00 ST Electronics (Satcom & Sensor Systems) Pte. Ltd. 29 New Industrial Road, ST Electronics Paya Lebar Building, Singapore 536213 Tel: (65) 6521 7888 Fax: (65) 6521 7333 Email: agilsense@stee.stengg.com Website: www.agilsense.com ( Regn: 199103901W ) 3. Connection Connection Hole Definition: 1. GND: Ground 2. V1: +5VDC (See section 4) 3. V2: +5VDC (See section 4) 4. V3: NC (NOT CONNECTED); 5. IF: Doppler Shift Output 4. Pulse Operation The Pulse operation of Transmitter (V1) uses +5Vdc pulsed at up to 2kHz repetition frequency at a duty cycle of 5% for lower power consumption. The Pulse operation for the Receiver (V2) is not recommended. It is only operated at a supply of +5VDC. Figure3: Pulse Operation Block Diagram
3 of 7 X-Band Microwave Motion Sensor Module HB170 Users Manual V1.00 ST Electronics (Satcom & Sensor Systems) Pte. Ltd. 29 New Industrial Road, ST Electronics Paya Lebar Building, Singapore 536213 Tel: (65) 6521 7888 Fax: (65) 6521 7333 Email: agilsense@stee.stengg.com Website: www.agilsense.com ( Regn: 199103901W ) 5. Transmit Frequency The transmit frequency and power of the module is set by the factory. There is no user adjustable part in this device. The module is a low power radio device (LPRD) or intended radiator. Local radio communication authority regulates use of such a device. Though user license may be exempted, type approval of equipment or other regulation compliance may be required. Annex 1 shows the allocated frequency in some countries. 6. Radiation Pattern The module is to be mounted with the antenna patches facing to the desired detection zone. The user may vary the orientation of the module to get the best coverage. The radiation patterns of the antenna and their half power beam width (HPBW) are shown in below diagram. 7. Output Signals Doppler shift – The IF terminal outputs a Doppler shift signal when movement is detected. The magnitude of the Doppler Shift is proportional to the reflection of the transmitted energy and is in the range of microvolts (µV). A high gain low frequency amplifier is usually connected to the IF terminal in order to amplify the Doppler shift to a processable level (see Annex 2). Frequency of Doppler shift is proportional to velocity of motion. Typical human walking generates Doppler shift below 100 Hz. Doppler frequency can be calculated by Doppler equation in Annex 2. The Received Signal Strength (RSS) is the measured voltage of the Doppler shift at the IF output. The RSS figure specified in the technical data sheet is the level of a 25 Hz Doppler shift, generated from the modulated microwave signal received at the receiver antenna, The received microwave signal is attenuated to 93 dB below the transmit microwave signal from the transmit antenna of the same unit. Azimuth Azimuth Elevation
4 of 7 X-Band Microwave Motion Sensor Module HB170 Users Manual V1.00 ST Electronics (Satcom & Sensor Systems) Pte. Ltd. 29 New Industrial Road, ST Electronics Paya Lebar Building, Singapore 536213 Tel: (65) 6521 7888 Fax: (65) 6521 7333 Email: agilsense@stee.stengg.com Website: www.agilsense.com ( Regn: 199103901W ) The 93dB loss is the total losses combining two ways free space loss (82.4 dB for 30 meters at 10.525 GHz), reflection loss and absorption loss of the target, as well as other losses. This RSS figure can be viewed as an approximation of the output signal strength for a human at 15 meters away walking straight to the module at 1.28 km/hour. Reflection of a human body is varied with the size of the body, clothing, apparels and other environmental factors; RSS measured for two human bodies may vary by 50%. Circuit designer must take note of the maximum and minimum Received Signal Strength (RSS) specified in technical data sheet, when designing the amplifier. Sensitive deviation between modules has to be considered when setting amplifier gain or alarm threshold. On-production-line gain adjustment may be necessary if a narrow window for triggering threshold is required. Noise - The noise figure specified in the technical data sheet is the noise measured in an Anechoic chamber, that shields the unit-under-test from external interference, as well as reflections from surfaces. Hence, the figure is only representing the noise generated by the internal circuit itself. Other than noises generate from internal electronic circuit, in actual applications, other noises may be picked up from surrounding, or other part of the electronic circuit. Special attention has to be given to the interference picked up from fluorescent light, as the 100/120 Hz noise is closed at the Doppler frequency generated by human movement. On and off switching of certain devices (relay, LED, motor, etc.) may generate a high magnitude of transient noise at the IF terminal. Careful PCB layout and time masking is necessary to prevent false triggering. DC Level - DC level (0.01 to 0.2 Vdc) exists at the IF terminal and its polarity can be positive and negative. Its magnitude may vary over temperature. AC coupling is recommended for IF terminal connection. 8. Radiation Safety Microwave radiation from the module is well below established safety standards for general public environment, like ANSI C95.1-1991 of USA and NRPB-G11 of United Kingdom. 9. Handling The module has been fully tested to specifications. Upon opening, tighten or loosen the chassis will cause performance deterioration. The module is an electrostatic sensitive device (ESD). Precautions shall be observed for handling and assembly.
5 of 7 X-Band Microwave Motion Sensor Module HB170 Users Manual V1.00 ST Electronics (Satcom & Sensor Systems) Pte. Ltd. 29 New Industrial Road, ST Electronics Paya Lebar Building, Singapore 536213 Tel: (65) 6521 7888 Fax: (65) 6521 7333 Email: agilsense@stee.stengg.com Website: www.agilsense.com ( Regn: 199103901W ) 10. Product Support Please contact our product support engineers in the factory for technical assistance whenever necessary. Product Support (Microwave Sensors) Tel: (65) 6521 7948 Fax: (65) 6521 7801 e-mail: agilsense@stee.stengg.com This device complies with part 15 of FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications to ST Electronics equipment not expressly approved by ST Electronics could void the user authority to operate the equipment. The system integrated the radio should have label indicated the FCC ID of approved Radio. Such as putting a label on system as below: CONTAIN FCC ID: VECHB7 Warning : The radio does not allow to be installed and operated with other radio simultaneously when integrated in host system. Installed in such configuration may subject to additional FCC testing and equipment authorization.
6 of 7 X-Band Microwave Motion Sensor Module HB170 Users Manual V1.00 ST Electronics (Satcom & Sensor Systems) Pte. Ltd. 29 New Industrial Road, ST Electronics Paya Lebar Building, Singapore 536213 Tel: (65) 6521 7888 Fax: (65) 6521 7333 Email: agilsense@stee.stengg.com Website: www.agilsense.com ( Regn: 199103901W ) Annex 1: Transmission of RF Allocated frequency for several countries listed below: Frequency Country Remark 9.35 GHz Germany 10.525 GHz USA, Belgium, Netherlands 10.587 GHz UK, France Outdoor & Indoor applications 1. Though same frequency is allocated in some countries, national regulations may specify different EIRP, spurious emission or other requirements. 2. ETS EN300 440 is the recommended harmonized standard for European Community, member country may adopt their own national regulation. The HB7 series transceivers meet the requirement of EN300 440 3. The HB7 series is also designed to meet the FCC standard part 15.245 and is aimed for use in the America as well. 4. The regulations are subjected to change from time to time, please contact appropriate authorities for full and up-to-dated information. 5. Useful websites: Agency Website The Code of Federal Regulations, USA http://www.access.gpo.gov/cgi-bin/cfrassemble.cgi?title=199847 The European Radiocommunication Office http://www.ero.dk/ Federal Communications Commission http://www.fcc.gov/
7 of 7 X-Band Microwave Motion Sensor Module HB170 Users Manual V1.00 ST Electronics (Satcom & Sensor Systems) Pte. Ltd. 29 New Industrial Road, ST Electronics Paya Lebar Building, Singapore 536213 Tel: (65) 6521 7888 Fax: (65) 6521 7333 Email: agilsense@stee.stengg.com Website: www.agilsense.com ( Regn: 199103901W ) Annex 2: Doppler Equation Where Fd = Doppler frequency V = Velocity of the target Ft = Transmit frequency c = Speed of light (3 X 108m/sec)  = The angle between the target moving direction and the axis of the module. If a target is moving straight toward or away from HB100 (Ft = 10.525 GHz) The formula is simplified to: Fd = 19.49V (Velocity in km/hour) or 31.36V (V in mile per hour) Conversion factors for other frequencies are shown below: Frequency Fd (V in Km/hr) Fd (V in mph) 9.35 GHz 17.31V 27.85V 10.525 GHz 19.49V 31.36V 10.587 GHz 19.60V 31.54V CoscF2VF td

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