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Design of broadband planar array composed of 2×2 slotted cavities fed by E-plane waveguide parallel-feeding circuit in millimeter-wave band

机译:电子平面波导并行馈电电路在毫米波波段馈电的由2×2开缝腔组成的宽带平面阵列设计

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An 8×8 element array antenna is composed of the E-plane waveguide parallel-feeding circuit in the lower layer and the 2×2 slotted cavities in the upper layer. The E-plane waveguide parallel-feeding circuit consists of two plates and assembled at the center of the broad wall of the waveguide to achieve low-loss property and wide bandwidth simultaneously. The 2×2 slotted cavities are designed to obtain lower Q factor and an ideal radiation patter in combination with the array factor of the cavity arrangement. The simulated bandwidth with reflection lower than -15 dB were wider than 5 GHz. The sidelobe level was lower than -12 dB and the gain was 26.0 dBi at 73.5 GHz.
机译:8×8单元阵列天线由下层的E平面波导并行馈电电路和上层的2×2开槽腔组成。 E平面波导并行馈电电路由两块板组成,并组装在波导宽壁的中心,以同时实现低损耗特性和宽带宽。 2×2开槽腔设计用于获得较低的Q因子和理想的辐射模式,并结合腔布置的阵列因子。反射低于-15 dB的模拟带宽大于5 GHz。旁瓣电平低于-12 dB,在73.5 GHz时增益为26.0 dBi。

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