ADF5904

The EV-ADF5904SD2Z evaluation board allows the user to evaluate the performance of the ADF5904 24 GHz receiver downconverter. Figure 1 shows the board, which contains the ADF5904, five high frequency SMA connectors for the local oscillator (LO) input, four receiver (Rx) inputs, eight SMA connectors for the baseband outputs, banana connectors for power supply, and a connector for serial interface.

The evaluation kit also contains software that is compatible with Windows^® XP and later versions to allow easy programming of the device.

This evaluation board requires an EVAL-SDP-CS1Z SDP-S board (not supplied with the kit). The SDP-S board allows software programming of the ADF5904 device.

Full specifications on the ADF5904 are available in the product data sheet, which should be consulted in conjunction with this user guide when working with the evaluation board.

Оценочная плата EV-RADAR-MMIC2 предназначена для оценивания характеристик чипсета радиолокационной системы с непрерывной частотной модуляцией, состоящего из монолитных интегральных схем передатчика диапазона СВЧ 24 ГГц ADF5901 и приемника диапазона СВЧ ГГц ADF5904, а также микросхемы синтезатора с фазовой автоподстройкой частоты с полосой 13 ГГц ADF4159.

Плата EV-ADAR-D2S содержит дифференциальный усилитель AD8129, который выполняет преобразование дифференциальных выходных сигналов ADF5904 в полосе модулирующих частот в несимметричные сигналы с коэффициентом усиления 20 дБ.

Оценочный комплект также включает в себя программное обеспечение, совместимое с Windows^® XP и более поздними версиями Windows, которое упрощает программирование компонентов

Для работы с платой требуется плата SDP-S или SDP-B (не входят в состав комплекта). Платы SDP нужны для программного конфигурирования всех компонентов чипсета.

The 24 GHz radar sensor platform called Demorad is a novel microwave radar evaluation platform solution with out-of-the-box software examples and easy startup of radar sensor all done within minutes. Demorad platform enables rapid product prototyping aimed at R&D interests in investigating radar and developing radar sensor products that can measure real-time information such as target/object presence, its movement, angular position, velocity, and range from the sensor.

The Demorad platform provides both hardware and software that allows for very fast evaluation and development of 24 GHz radar without the need to have RF microwave and signal chain system expertize, and significantly reduces development time and system expertize during product development phases.

A high performance RF and analog full signal chain including DSP processing, that is, an RF to bits solution is provided that allows for flexible processing on raw acquisition data, allowing radar experiments on a state-of-the art level hardware in a very short time.

Full software support of 24 GHz radar ICs using a software graphical user interface (GUI) and in DSP radar support function libraries with added capability to write raw data for post processing on PC using Matlab tools.

Figure 1. Demorad 24GHz Evaluation Software Window showing Range-Doppler mode.

Demorad Details

The Demorad uses ADI’s 24 GHz, multichannel radar solution. The sensor consists of a single PCB with 2 transmitter/4 receiver antennas on the front side connected to the 24 GHz RF chipset and data  acquisition ADC’s and DSP on the reverse side. This forms the basis for a reference design that customers can use to build their final product design.

Figure 2. Demorad full signal chain.

The Demorad uses FMCW radar to detect range and velocity of objects up to 200 m away with a resolution of approximately 75 cm. The field of view (FOV) is approximately 120° in azimuth and 15° in elevation based on the antenna array design. By combining antennas as used in digital beam forming (DBF), the Demorad uses DBF to calculate angular information in the FOV.

Figure 3. Demorad system setup.

Applications

• Traffic monitoring and car parking
• UAV/drone collision avoidance and altimeters
• Monitoring and security systems