毫米波差分驱动圆极化平面孔径天线

2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) Pub Date : 2015-11-12 DOI:10.1109/IRMMW-THZ.2015.7327653

D. Bisharat, S. Liao, Q. Xue

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引用次数: 4

摘要

提出了一种用于圆极化(CP)辐射的差分驱动平面孔径天线。该天线结构简单，采用标准印刷电路板(PCB)技术，仅在单层层压板上构建。圆偏振是通过具有行波分布的旋转对称风车形孔条形成来实现的。采用金属化通孔形成的开口腔，具有良好的单向辐射和较高的增益。工作在v波段的样机仿真结果表明，3db轴比(AR)带宽为17.4% (56.8-67.5 GHz)，在- 10db阻抗带宽范围内。同时，左旋CP (LHCP)增益在整个工作带宽内稳定，峰值增益为14.2 dBi。该天线具有宽带、高增益、结构简单、成本低、易于与差分电路集成等优点，是毫米波(mmWave)频段的理想天线。

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Differentially-driven circularly-polarized planar aperture antenna for millimeter-wave application

This paper presents a novel differentially-driven planar aperture antenna for circularly-polarized (CP) radiation. The proposed antenna is simple in structure and is constructed on only a single layer laminate using standard printed-circuit-board (PCB) technology. Circular polarization is realized by rotationally-symmetric windmill-shaped aperture-strip formation with travelling wave distribution. An opening-cavity that is formed by metalized vias is adopted to offer favorable unidirectional radiation and higher gain. Simulation results of a prototype working at V-band show a 3-dB axial ratio (AR) bandwidth of 17.4% (56.8-67.5 GHz), which is within its -10-dB impedance bandwidth. Meanwhile, the left-handed CP (LHCP) gain is stable throughout the operating bandwidth with a peak gain of 14.2 dBi. The proposed antenna is a promising candidate for millimeter-wave (mmWave) bands due to its merits of wideband, high gain, simple structure, low cost, and easy integration with differential circuits.

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2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)

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