The LDAM1102 speed-measuring radar antenna module adopts the German BGT34LTR11 series 24GHz radar MMIC chip, combined with a high-gain antenna design. Suitable for Doppler speed measurement applications, it features high sensitivity, low power consumption and compact size.
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24GHz LDAM1102 Industrial Radar Antenna Module With I/Q Output
The LDAM1102 speed-measuring radar antenna module adopts the German BGT34LTR11 series 24GHz radar MMIC chip, combined with a high-gain antenna design. Suitable for Doppler speed measurement applications, it features high sensitivity, low power consumption and compact size.
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Main Parameters
| Part number | LDAM1102 |
| Color | Green |
| Type | Speed measurement |
| Output | I/Q Signal |
| Working voltage | 3.9-5.5V |
| Working current | 36-49mA |
| Working Temperature | -45℃~+85℃ |
| Transmission frequency | 24-24.25GHz |
| Temperature drift | -1MHz/°C |
| Output power | +18~+20dBm |
| Transmitter duty cycle | 0.01 |
| Spurious interference | -30dBm |
| Intermediate frequency output impedance | 100Ω |
| Intermediate frequency amplification gain | 50dB |
| I/Q signal amplitude balance | 3dB |
| Phase shift of I/Q signals | 80°-100° |
| Level | 12° |
| Vertical | 24° |
| Size | L/W/H 46×40×7.5mm |
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What is the operating frequency?
The LDAM1102 operates in the 24GHz band (24–24.25GHz), compliant with global ISM regulations.
What is the power consumption?
Typical current is 40mA at 5V, with low power consumption for energy-sensitive applications.
What is the output power and sensitivity?
EIRP output power is +18dBm to +20dBm. Receiver sensitivity is -122dBm, with overall system sensitivity of -140dBc for reliable weak signal detection.
What outputs does the module provide?
It provides I/Q intermediate frequency outputs with 90° phase shift, enabling speed and direction detection. IF range is 20Hz to 20kHz.
What are the beam width specifications?
-3dB beam width is 12° horizontal and 24° vertical, with side lobe suppression of -20dB and -18dB respectively.
What is the operating temperature range?
The module operates from -45°C to +85°C, suitable for both indoor and outdoor harsh environments.
What are the dimensions and interface?
Dimensions are 46×40×7.5mm. Interface is simple 6-pin: Vcc, GND, IFI, IFQ, and two NC pins.
What are typical applications?
CW Doppler speed measurement, motion detectors, speed sensing, lighting control, access control, smart home, and alarm systems.
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