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首页> 外文期刊>Microwave and optical technology letters >A BROADBAND BEAM-FIXED PLANAR-ARRAY ANTEMNA USING SLOT PAIR AND CONDUCTIVE BAR AT MILLIMETER-WAVE FREQUENCIES
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A BROADBAND BEAM-FIXED PLANAR-ARRAY ANTEMNA USING SLOT PAIR AND CONDUCTIVE BAR AT MILLIMETER-WAVE FREQUENCIES

机译：毫米波频率下使用缝隙对和导电棒固定宽带天线的平面阵列天线

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摘要

This paper presents a broadband millimeter-wave planar-array antenna that uses a slot pair and crossing conductive bar. The antenna is fed by a waveguide feed network in the E-plane to reduce the feed-line loss and a microstrip-feed network in the H-plane in order to decrease fabrication costs. The waveguide and microstrip are coupled through the slot pair, which is placed a quarter guided-wavelength distance apart, so that the reflected waves from the slots cancel each other. As a result, the antenna exhibits very broadband characteristics. The conductive bar is laid above the slots to increase the coupling. Results from simulation and measurement of the fabricated antenna show the reflection bandwidth to be more than 7.1% of the 40.5-43.5-GHz frequency range. The antenna also has fixed beams, low side-lobe levels (SLLs) at all frequencies of interest, and a high gain of 28.1 dBi at 41.5 GHz.
机译：本文提出了一种使用缝隙对和交叉导电棒的宽带毫米波平面阵列天线。天线由E平面中的波导馈电网络馈电以减少馈线损耗，并由H平面中的微带馈电网络馈电，以降低制造成本。波导和微带线通过缝隙对耦合，缝隙对之间的导波波长间隔为四分之一，因此来自缝隙的反射波会相互抵消。结果，天线展现出非常宽带的特性。导电条放置在槽上方以增加耦合。人造天线的仿真和测量结果表明，反射带宽超过40.5-43.5 GHz频率范围的7.1％。该天线还具有固定波束，所有感兴趣频率处的低旁瓣电平（SLL），以及在41.5 GHz时具有28.1 dBi的高增益。

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