平行板波导锥形槽天线阵列

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 Pub Date : 2006-03-06 DOI:10.1109/IWAT.2006.1608974

S. Yamaguchi, K. Yamashita, K. Nishizawa, H. Fushimi, H. Miyashita, S. Makino

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引用次数: 4

摘要

锥形缝隙天线(TSA)具有超宽的带宽，适合于宽带相控阵天线。然而，当采用较小孔径抑制相控阵光栅瓣时，VSWR性能明显下降。为了克服这一困难，提出了一种新的锥形缝隙天线;带平行板波导的锥形槽天线(PPTSA)在最低工作频率下，即使孔径宽度小于半波长，PPTSA也能提供超宽带宽特性。在之前的报告中通过数值模拟和实验展示了单个PPTSA的主要性能。本文对PPTSA的阵列性能进行了研究。提出了一种新的结构，通过在PPTSA附近引入截止波导来抑制来自地平面的波纹。并给出了VSWR和辐射方向图的实测和计算数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Tapered slot antenna array with parallel plate waveguides

Tapered slot antennas (TSA) are adequately applicable to wideband phased array antennas due to their ultra wide bandwidths. However, a significant degradation of VSWR performance is observed when a smaller aperture is adopted to suppress grating lobes for the phased array. To overcome the difficulty, a new tapered slot antenna is proposed; tapered slot antenna with a parallel plate waveguide (PPTSA). The PPTSA is capable of providing the ultra-wide bandwidth characteristics even when the width of the aperture is less than a half wavelength at the lowest operating frequency. Major performances of a single PPTSA was presented through numerical simulations and experiments in the previous report. In this paper array performances of PPTSA is investigated. A new configuration to suppress ripples from the ground plane is proposed by introducing cut-off waveguides close to the PPTSA. Measured and calculated data for VSWR and radiation pattern are also presented.

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来源期刊

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003

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