120 GHz RADAR TRANSCEIVER

TRA_120_002

The radar front end TRA_120_002 is a compact IC module characterized by a high measurement resolution in the license-free ISM band between 122.0 and 123.0 GHz. Its transmitter and receiver branch have separate signal lines.

The focus of radar MMIC TRA_120_002 is on maximum integration. Here both antennas, one for transmitter and one for receiver branch, are monolithically integrated in the chip to offer lowest size and loss. Please also see our hybrid integrated MMIC radar TRX_120_001.

Application

The radar chips provide measurement signals for distance and speed measurement for objects as an analogue signal. Including a subsequent external signal evaluation at customer side possible applications are the investigation of a material surfaces, the measurement of layer thicknesses and other properties of the measurement objects. The main application area of the 120-GHz transceiver radar front end is for short-range radar systems with an operation range of up to 10 meters. By using dielectric lenses or mirrors, the range can be increased beyond 100 metres.

No handling of high frequencies on PCB

In the radar front end, the high-frequency radar signal is already converted to a smaller frequency in the IC. It is output as an analogue signal with a frequency of max. 2 GHz. This allows for routing andsignal processing of all signals on cost-efficient PCBs. It can therefore be implemented on standard FR4 boards and combined with other IC components for control loops, for voltage stabilization, frequency modulation and AD conversion.

Product Details

TRA_120_002
Transceiver
Article NumberTRA_120_002
Frequency120 GHz
Frequency Range

min/max

119.1 GHz / 125.4 GHz
Operation ModeFMCW / CW
Single Supply Voltage3.3V
Power Consumption112 mA
PackageQFN 32: 5 x 5 mm²
Evaluation Boards / KitsEvalKit Easy

Differences between TRX 120_001 and TRA_120_002

The radar antennas of the TRA 120_002 are monolithically integrated on the silicon chip and encapsulated in the housing. To achieve increased directivity, the antennas of the TRX_120_001 were designed as larger patch antennas and integrated in a separate carrier from the circuit within the QFN package. This results in different sizes and performance characteristics of the two radar modules with respect to radiation, beam characteristics and range. These can be further optimized by a combined set-up of the radar ICs with silicon and plastic lenses or reflectors.

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