In this paper, a single null compensation dipole antenna for Wi‐Fi band (2.4 GHz) is developed. The antenna is fed by the parallel transmission lines, and its radiation unit consists of a printed dipole antenna and a Yagi antenna. The proposed antenna has three layers. The top and bottom layers are printed with the dipole antenna and the driver arm of the Yagi antenna. The director and the reflector of the Yagi antenna are placed on the middle layer. The three layers are separated by two FR‐4 substrates. This antenna satisfies the omnidirectional radiation characteristic in its H plane and can compensate a null point in the E plane. Simulation results show that the 10 dB bandwidth is 2.32 to 2.46 GHz. The maximum realized gain is 1.13 dB in the frequency band. The non‐roundness of the H plane is less than 2 dB, which shows good omni‐directivity. A null point in the radiation pattern of the E plane is compensated to −1.4 dB at 2.4 GHz, while the other null point of the E plane remains below −15 dB. The antenna has been manufactured and tested, and the measurement results validate the design and the simulation results.

中文翻译：

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单零位补偿偶极子天线的设计

本文针对Wi-Fi频段（2.4 GHz）开发了一个零补偿偶极天线。天线由并行传输线供电，其辐射单元由印刷偶极天线和八木天线组成。所提出的天线具有三层。顶层和底层都印有偶极天线和八木天线的驱动臂。八木天线的指向矢和反射器位于中间层。这三层被两个FR-4基板隔开。该天线在其H平面上满足全向辐射特性，并且可以补偿E平面上的零点。仿真结果表明，10 dB带宽为2.32至2.46 GHz。在该频带中，最大实现增益为1.13 dB。H平面的非圆度小于2 dB，这表明它具有良好的全方位性。E平面的辐射方向图上的一个零点在2.4 GHz处被补偿为-1.4 dB，而E平面的另一个零点保持在-15 dB以下。天线已经过制造和测试，测量结果验证了设计和仿真结果。