Single-transmitting and multiple-receiving SIW lens antenna for on-board anti-collision radar
A technology of anti-collision radar and lens antenna, which is applied in the direction of antenna, antenna array, antenna parts, etc., can solve the problems of high price and large volume of anti-collision radar, and achieve simple structural layout design, suppression of clutter signals, and high integration degree of effect
Active Publication Date: 2016-03-23
DALIAN ROILAND SCI & TECH CO LTD
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Problems solved by technology
The existing anti-collision radar is expensive (phased array system) or due to the limitation of the chip, the general lens radar needs to separate the sending and receiving, and multiple lenses need to be designed, so the volume is large
Method used
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Embodiment 1
[0026] Vehicle-mounted anti-collision radar with one-shot and multiple-receive SIW lens antenna, including plano-convex lens 2 on the upper layer, shielding cavity bracket 7 on the middle layer, SIW array antenna 3 on the lower layer and microwave circuit board carrier board 8, SIW array antenna 3 is placed on the microwave circuit board On the carrier board 8; the SIW array antenna 3 includes a multi-channel SIW receiving antenna and a multi-channel SIW transmitting antenna 11, the SIW transmitting antenna and the SIW receiving antenna are distributed alternately, and the feeding points of the two are distributed at different two ends, Multiple SIW transmitting antennas 11 are phase-combined into one transmitting channel through a feeding network, and multiple SIW receiving antennas are respectively connected to multiple receiving channels through feeders. A choke groove 9 is provided between the SIW transmitting antenna 11 and the SIW receiving antenna; the SIW receiving ante...
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A single-transmitting and multiple-receiving SIW lens antenna for an on-board anti-collision radar comprises a planoconvex lens on an upper layer, a shielding cavity bracket on an intermediate-layer and an SIW array antenna and a microwave circuit board carrier on a lower layer, wherein the SIW array antenna is arranged on the microwave circuit board carrier; and the SIW array antenna comprises multiple paths of SIW reception antennas and multiply paths of SIW transmission antennas, the SIW transmission antennas and the SIW reception antennas are distributed in a staggered manner, and feed points of both the SIW transmission antennas and the SIW reception antennas are distributed at two different ends, and the multiple paths of SIW transmission antennas are combined into one path of transmission channel in an equivalent phase manner by means of a feed network, and the multiple paths of SIW reception antennas are separately connected to four reception channels by means of feed lines. According to the single-transmitting and multiple-receiving SIW lens antenna for the on-board anti-collision radar, which is provided by the present invention, space domain filtering can be implemented at a radio-frequency front end, so that a clutter signal is effectively suppressed; and the antenna is high in gain, small in volume, low in cost and high in integration, and can reach high angular measurement precision by amplitude-comparison angle measurement.
Description
technical field [0001] The invention belongs to the field of lens antennas, in particular to a vehicle-mounted anti-collision radar one-shot-multiple-receive SIW lens antenna. Background technique [0002] Early lens antennas used for 77GHz anti-collision radars generally used multiple lenses, and this form of radar was relatively large in size; currently, the 77GHz anti-collision radars of the US company Trina (TRW) on the market use waveguide lens antennas, based on and The principle of difference beam, the angle measurement function is realized by comparing the amplitude and the phase. This kind of radar has a small range of angle measurement, and the signal processing needs to identify the phase information, which is relatively complicated; the 77GHz of Bosch (Bosch) in Germany adopts the form of lens antenna LRR3 radar (based on Infineon's newly developed chip, with four receiving channels), the two channels in the middle are shared for sending and receiving, so the two...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q21/00H01Q1/22H01Q19/06H01Q1/32
CPCH01Q1/2283H01Q1/3233H01Q19/06H01Q21/00
Inventor 田雨农陈军周秀田史文虎
Owner DALIAN ROILAND SCI & TECH CO LTD