A dual‐resonant, semi‐circular sector patch antenna is properly incorporated to a planar self‐balanced magnetic dipole antenna and lead to a novel triple‐resonant, dual‐band planar antenna which has characteristics of wide E‐plane beam width and stable gain at both bands in this work. Design approach with a group of approximate closed‐form formulas is proposed to initially calculate value of the main parameters of the antenna. In the numerical and experimental verifications, it is demonstrated that the antenna operates at 2.4–2.48 and 4.75–5.95 GHz for reflection coefficient smaller than −10 dB. The antenna exhibits unique characteristics of wide E‐plane half‐power beamwidths of 91°/115°, and stable in‐band average gain of about 4–5 dBi at both bands owing to the nearly complementary frequency dispersive characteristic of the radiation pattern in both principal‐cut planes. As seen, the antenna can cover wide wireless communication spectra, which makes it promising to get applications in future developments of multi‐functional WLAN/RFID antennas, C2C communication antennas, and light‐weight, compact UAV antennas without bulky reflectors.

中文翻译：

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具有宽电子平面波束宽度和两个频段均稳定增益的双频段堆叠式贴片天线

将双共振，半圆形扇形贴片天线适当地结合到平面自平衡磁偶极天线中，并导致了新颖的三共振，双频带平面天线，该天线具有宽的E平面波束宽度和稳定的增益的特性。在这项工作的两个波段中。提出了使用一组近似的封闭形式公式的设计方法来初步计算天线主要参数的值。在数值和实验验证中，表明天线工作在2.4–2.48和4.75–5.95 GHz的反射系数小于-10 dB。该天线具有91°/ 115°的宽E平面半功率波束宽度的独特特性，由于两个主切平面中辐射方向图的频率互补特性几乎互补，因此两个频段的带内平均增益均稳定在4-5 dBi左右。如图所示，该天线可以覆盖广泛的无线通信频谱，这使其有望在多功能WLAN / RFID天线，C2C通信天线以及轻巧，紧凑的无人飞行器无天线的未来开发中得到应用。