A Multi-Beam and Multi-Range Radar With FMCW and Digital Beam Forming for Automotive Applications

Abstract

Abstract-In this paper, we propose a multi-beam and multi-range (MBMR) radar with frequency modulated continuous wave (FMCW) waveform and digital beam forming (DBF) algorithm to cover a detection area of long range and narrow angle (150 m, ±10 • ) as well as short range and wide angle (60 m, ±30 • ) as a single 24 GHz sensor. The developed radar is highly integrated with multiple phased-array antennas, a two-channel transmitter and a four-channel receiver using K-band GaAs RF ICs, and back-end processing board with subspacebased DBF algorithm. The proposed 24 GHz MBMR radar can be used for an adaptive cruise control (ACC) stop-and-go system which typically consists of three radars, such as two 24 GHz short-range radars for object detection in an adjacent lane and one 77 GHz longrange radar for object detection in the center lane.

Multi-beam and multi-range antenna array for 24 GHz radar applications

“…In [12] the multi-beam and multi-range radar has been proposed, in which the FMCW and digital beam forming has been applied. The radar system described in [12] uses two independent antenna arrays of different ranges and different beamwidths for the detection of hazards in the surrounding of a vehicle.…”

Design of High Gain Novel Dielectric Resonator Antenna Array for 24 GHz Short Range Radar Systems

“…DRAs can also be excited with different feeding methods, such as probes, micro strip lines, slots, and co-planar lines [1 also fabricated from a high relative permittivity (ε r =10-100). As compared to the m antenna, the DRA presents several advantages as small size, light weight, low cost, shape and feeding mechanism, simple structure, possible automotive applications of SRR technology [9], (b) A go system with max range of width critical for SRR and LRR [10]. and the most of gned using microstrip antennas technology because of some advantages such as and the ease of design and test during R&D phase.…”

A 77 GHZ Series Fed Weighted Antenna Arrays With Suppressed Sidelobes in E- And H-Plane

“…As well known, in millimeter-wave band, series-fed method is better than parallel-fed one in consideration of the simple feeding network and low insertion loss. Therefore, series-fed method has been more widely adopted in 77 GHz radar, as can be seen in [9][10][11]. This paper presents the design of a 77 GHz series-fed antenna array.…”