ST Electronics AP97 K-Band Miniature Microwave Doppler Transceiver Module User Manual Installation Instruction

ST Electronics (Satcom & Sensor Systems) Pte Ltd K-Band Miniature Microwave Doppler Transceiver Module Installation Instruction

VECAP97_User Manual_rev 2.pdf

sϮ͘Ϭϭ )HDWXUHV x0RWLRQGLUHFWLRQGLVFULPLQDWLRQ x6PDOODQGIODWSURILOH x/LJKWZHLJKW x&:DQGSXOVHPRGHRSHUDWLRQ x/RZFXUUHQWFRQVXPSWLRQ $SSOLFDWLRQV x0RWLRQGHWHFWLRQ x/LJKWLQJFRQWURO x6HFXULW\DODUP x$XWRPDWLFGRRUFRQWURO The AP97 series K-band miniature sensor is a Doppler transceiver with a HEMT oscillator, two sin-gle balanced mixers and bi-static microstrip patch antenna arrays. It is suitable for applications in automatic access, security, lighting control and speed measurement. It also has I-Q outputs to discriminate motion direction. Its lightweight, miniature size and slim profile offer the flexibility to OEMs in making trendy and slim products. $3 'XDO&KDQQHO0LQLDWXUH.-EDQG0LFURZDYH6HQVRU All dimensions are in mm. Note 1: Complies with EN 300 440. Note 2: Complies with FCC Part 15.245. Note 3: CAUTION: ELECTROSTATIC SENSITIVE DEVICE. Observe precautions for handling and storage. Pin Name Description 1 NC Not connected 2 +V Supply voltage, VIN 3 I Channel I 4 GND Ground 5 Q Channel Q 0RGXOH2XWOLQH
sϮ͘Ϭϭ 0306090120150180210240270300330-40-30-20-100-40-30-20-100 Normalized Radiation Pattern (dB) X Y$QWHQQD%HDP3DWWHUQ 7HFKQLFDO6SHFLILFDWLRQV Unless noted otherwise, the specifications are measured in CW mode, VIN = 5 VDC and 12k ohm load at +25°C. Parameter Remarks Min Typical Max Units Operating Conditions Supply voltage, VIN AP97,AP97-1,AP97-2 4.75 5 5.25 VDC AP97-3 2.85 3 3.15 VDC Current consumption 30 40 mA Operating temperature -20 60 °C Recommended Pulse Scheme Pulse frequency Pulse mode 2 KHz Duty cycle Pulse mode 2 % Transmitter Operating frequency AP97 24.000 24.125 24.250 GHz AP97-1 24.075 24.125 24.175 GHz AP97-2 24.150 24.200 24.250 GHz AP97-3 24.000 24.125 24.250 GHz Radiated power (EIRP) 15 dBm Spurious emission -30 dBm Frequency drift vs temperature -1 MHz/°C Antenna Antenna beam-width (3 dB) - X 80 ° Antenna beam-width (3 dB) - Y 32 ° Antenna sidelobe rejection 15 dB Receiver I&Q amplitude balance 0.5 3 dB I&Q phase difference 70 90 110 ° Physical Properties Dimensions 25.4×25.4×11.7 mm Weight 3 g 67(OHFWURQLFV6DWFRP6HQVRU6\VWHPV3WH/WG $QJ0R.LR(OHFWURQLFV3DUN5RDG-67(QJLQHHULQJ+XE6LQJDSRUH 7HO)D[ :HEVLWHZZZDJLOVHQVHFRP5HJQ1R: %ORFN'LDJUDP
4 of 7 MSAN-00X AP97 K-Band Miniature Doppler Transceiver Module Application Note V1.00 7. Placing the module in enclosure When AP97 sensor module is housed in an enclosure, it is important to ensure that the performance of the module is not significantly degraded by the presence of the enclosure. A suitable material with both lower dielectric constant and lower loss tangent (that is ABS) is preferred. Microwaves penetrate through plastic material without significant loss as long as it does not have direct contact with the antenna patch surface. In comparison, metal results in full reflection while water results in significant absorption of microwaves. Therefore it is important not to place any metallic material in front of the antenna. Ideally, surface of the enclosure in front of the antenna should be flat. Curved surface introduces beam pattern distortion, both main beam and side-lobes. It is also important for user to note that the selection of the enclosure thickness, and the spacing in between from the antenna patch surface, is in relation to the wavelength of the microwave signal and the dielectric constant of the enclosure material. For ABS material that has a dielectric constant of between 2.5 to 3.5, the recommended spacing is approximately 6mm, and the recommended thickness is between 3 to 4mm. User is advised to fine-tune the spacing between the antenna and the enclosure in accordance to their application for optimum performance as depicted in figure 5. Figure 4: Optimizing thickness and clearance for ABS placed in front of AP97 sensor module. 3 ~ 4mm ABS enclosure Antenna side 6mm (requires fine-tuning) AP97 unit

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