Radar Sensor Has Roots In Antenna Switching

Jan. 26, 2010
FOR PHASED-ARRAY RADAR sensors, the design should be a simple structure with fewer receivers than antennas. A K-band, frequency-modulated, CW (FMCW) phased-array radar sensor with a low-complexity receiver based on antenna switching was ...

FOR PHASED-ARRAY RADAR sensors, the design should be a simple structure with fewer receivers than antennas. A K-band, frequency-modulated, CW (FMCW) phased-array radar sensor with a low-complexity receiver based on antenna switching was recently proposed by Moon-Sik Lee from Korea's Electronics and Telecommunications Research Institute together with Yong-Hoon Kim from Korea's Gwangju Institute of Science and Technology. Using a beamforming method, the researchers evaluated the radar sensor's performance based on angle and range information.

The short-range radar sensor comprises the following: a transmitter; transmitting antenna; four receiving antennas; a single-pole, four-throw (SP4T) switch; a receiving channel; two analog-todigital converters (ADCs), a digital-to-analog converter (DAC), and a digital signal processor (DSP). The receiving antennas are periodically switched to the single receiving channel. See "Development of a K-band FMCW Phased Array Radar Sensor with Low Complexity Receiver Based on Antenna Switching," Microwave And Optical Technology Letters, December 2009, p. 2848.

About the Author

Nancy Friedrich | RF Product Marketing Manager for Aerospace Defense, Keysight Technologies

Nancy Friedrich is RF Product Marketing Manager for Aerospace Defense at Keysight Technologies. Nancy Friedrich started a career in engineering media about two decades ago with a stint editing copy and writing news for Electronic Design. A few years later, she began writing full time as technology editor at Wireless Systems Design. In 2005, Nancy was named editor-in-chief of Microwaves & RF, a position she held (along with other positions as group content head) until 2018. Nancy then moved to a position at UBM, where she was editor-in-chief of Design News and content director for tradeshows including DesignCon, ESC, and the Smart Manufacturing shows.

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