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首页> 外文会议>IEEE/MTT-S International Microwave Symposium >A Novel 24-GHz Air-filled Cavity-backed Slot Antenna Array with Out-of-phase Power Divider for Automotive Radar System
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A Novel 24-GHz Air-filled Cavity-backed Slot Antenna Array with Out-of-phase Power Divider for Automotive Radar System

机译：一种新型的24-GHz充气空腔背槽天线阵列，具有用于汽车雷达系统的电相电源分频器

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摘要

A novel 24-GHz cavity backed slot antenna with out-of-phase power divider based on multilayer air-filled print circuit board (PCB) for automotive radar is presented. By etching the bow-tie slot and rectangular slot on the antenna element, the two resonant frequencies at 23.45GHz and 24.15GHz are stimulated. For the antenna element, the measured operating frequency band is 23-25.01GHz and the maximum measured gain is 7.08dBi. And then, the antenna array with 16 antenna elements is proposed. The microstrip-to-slotline power divider with 180° phase difference is designed to compose the feeding network. According to the measured results of the antenna array, the impedance bandwidth is from 23.22-25.03GHz and the maximum gain is 14.83dBi. In addition, the front-back ratio (F/B) is larger than 25dB.
机译：提出了一种新的24-GHz腔压缩插槽天线，其基于用于汽车雷达的多层充气印刷电路板（PCB）的基于多层充气印刷电路板（PCB）。通过蚀刻天线元件上的蝴蝶结槽和矩形槽，刺激了23.45GHz的两个共振频率和24.15GHz。对于天线元件，测量的工作频带为23-25.01GHz，最大测量增益为7.08dbi。然后，提出了具有16个天线元件的天线阵列。具有180°相位差的微带到石英配功率分频器旨在构成馈电网络。根据天线阵列的测量结果，阻抗带宽为23.22-25.03GHz，最大增益为14.83dbi。另外，前后比（F / B）大于25dB。

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