基于寄生像素条的宽带多波束平面准八木阵列天线
A Wideband Multibeam Planar Quasi-Yagi Array Antenna Based on Parasitic Pixel Strips
浏览论文内容
中文总结 AI 辅助
该研究提出基于寄生像素条（PPS）的低复杂度结构，结合平面准八木天线，实现多波束阵列天线，仅用四个PIN二极管即可生成六种波束，无需复杂波束形成网络，具备宽带等优势。
中文摘要 AI 辅助
本文提出一种用于阵列天线的低复杂度寄生像素条（PPS）结构，可生成具备灵活波束控制的六种辐射方向。为实现多波束工作，将三组对称的条形像素与馈电天线集成，其连接状态可由PIN二极管控制。借助可重构的寄生配置，能策略性地调控天线的耦合路径，从而获得所需的多波束特性。因此，将PPS结构与平面准八木天线结合，该单天线可在5.0至5.6 GHz的频率范围内工作于四种状态，波束方向分别为40°、-40°、0°以及±45°的双波束。此外，还制作了一个带PPS结构的1×2阵列原型，实现了六种波束，扫描范围为40°、20°、0°、-20°、-40°以及±30°的双波束。值得注意的是，仅使用四个PIN二极管即可实现六种辐射，验证了该方法能有效减少开关的过度使用并增加波束种类，为无需复杂波束形成网络的多波束阵列天线提供了低复杂度方案。这些天线具备宽带、平面结构、低结构复杂度、低成本及灵活波束控制的优势。
英文摘要
This letter presents a low-complexity parasitic pixel strip (PPS) structure for array antenna to generate six radiations with flexible beam control. To realize multibeam operation, three groups of symmetrical strip-shaped pixels are integrated with the feed antenna, the connection state of which can be controlled by PIN diode. Leveraging the reconfigurable parasitic configuration, the coupling path of the antenna can be strategically manipulated, achieving the desired multibeam property. Thus, by utilizing the PPS structure in conjunction with a planar quasi-Yagi antenna, this single antenna can operate at four states with beam direction towards 40°, -40°, 0°, along with a dual-beam at +/-45°, within the frequency range from 5.0 to 5.6 GHz. Moreover, a prototype of a 1 * 2 array with the PPS structure is also fabricated to achieve six beams with a scan range of 40°, 20°, 0°, -20°, -40° and a dual-beam at +/-30°. Notably, only four PIN diodes are utilized to implement six radiations, verifying that this approach effectively minimizes the excessive use of switches and extends the variety of beams, which provides a low complexity method for multibeam array antenna without complicated beamforming network. These antennas satisfy the benefits of wideband, planner structure, low structural complexity, low cost, and flexible beam control.
