BEA-T4 DRO K-Band Doppler Transceiver User Guide
Document History
| Date | Comment | Ver./Rev. | Author | Approval |
| 2021/03/09 | 01.01 | ATO | JPL | |
| 2021/05/11 | Canadian Regulatory information | 01.02 | JPL | JPL |
| 2021/06/21 | FCC & IC instruction | 01.03 | ATO | JPL |
Description
The BEA T4 is a 24GHz K-band Doppler transceiver with active antenna. Based on an advanced oscillator with low power consumption. This dual channel transceiver enables the detection of moving object with direction information. Thanks to its unique transmit and receive antenna, it offers a symmetrical radiation pattern. With its active switch it allows to electrically change the radiation pattern from wide to narrow field.
General
| Frequency band | K |
| Sensor type | Doppler |
| Radar type | Continuous wave |
| Modulation | Unmodulated |
| Antenna type | Active |
| Detection mode | Motion |
| Weight | 15gr |
Technical characteristics
Parameter | Conditions | Symbol | Min | Type | Max | Unit |
Operating conditions | ||||||
| Supply voltage | Vcc | 5 | V | |||
| Supply current | Icc | 25 | 35 | 40 | mA | |
| Operating temperature | Top | -30 | 70 | °C | ||
Transmitter | ||||||
| Transmit frequency | 25°C | F | 24.125 | 24.150 | 24.175 | GHz |
| Tx output power | EIRP | Pout | < 20 | dBm | ||
| Frequency drift in temperature | -30°C to 70°C | ∆F | 1 | MHz/°C | ||
IF output | ||||||
| I/Q phase | 90 | ° | ||||
| IF output resistance | 5 | kΩ | ||||
Antenna | ||||||
| Antenna switch logic | Horizontal Wide | 3.3 | 5 | V | ||
| Horizontal Narrow | 0 | V | ||||
Technical Construction File
CONFIDENTIAL – PROPRIETARY INFORMATION
Interface
| PIN # | DESCRIPTION | IN / OUT | COMMENT |
| 1 | VCC | Input | Supply voltage |
| 2 | IF1 | Output | Doppler signal |
| 3 | GND | Input | Ground |
| 4 | IF2 | Output | Doppler signal |
| 5 | SWITCH | Input | Antenna sw command |
Mechanical outlines
Housing material : Zamak coated with Lami
Regulatory Compliance
This device has been tested and approved to be compliant with Part 15 of the FCC Rules and with RSS-210 of Industry Canada.
Operation is subject to the following conditions:
- This device may not cause harmful interferences, and
- This device must accept any interference received, including interference that may cause undesired operation.
FCC & IC Instructions
List of applicable FCC rules
The module has been tested following FCC 47 CFR part 15.245 and RSS-210.
Summarize the specific operational use conditions
The module is considered as a field disturbance sensor. It will be used as doppler sensors to detect low speed moving targets (such as pedestrian, vehicules,…) in industrial environment.
The module must be installed and used in strict accordance with the manufacturer’s instructions as described in the user documentation that comes with the product.
Power supply of the module must be conform to the electrical specifications as described in § “Technical characteristics” of the current user manual.
Limited module procedures
Not applicable
Trace antenna designs
Not applicable
RF exposure considerations
Applicable conditions:
The module is made to be used in fixed applications.
The following information is required to be incorporated in the user manual of the final system:
- This device has been tested and approved to comply with FCC 47 CFR part 15.245 and RSS-210
- The antenna of the module may not be removed, replaced nor modified. The antenna must not be co-located or operating in conjunction with any other antenna or transmitter. No additional antenna must be used.
- This device may not cause harmful interferences, and this device must accept any interference received, including interference that may cause undesired operation.
Antennas
The module has build-in antennas. Modification on the antenna can not be operated and no additional antennas can be used.
Label and compliance information
A label with the words ‘Contains FCC ID:G9B-100606’ and ‘Contains IC:4680A-100606’ shall be applied and visible from the outside of the end product.
Information on test modes and additional testing requirements
Not applicable
Additional testing, Part 15 Subpart B disclaimer
Changes or modifications made to the equipment not expressly approved by BEA Inc. may void the FCC & IC authorization to operate this equipment.
OEM integrator is responsible for ensuring that after the module is installed and operational into the host, it continues to be compliant with the listed FCC rules
