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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Double triangular monopole-like antenna with reconfigurable single/dual-wideband circular polarization
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Double triangular monopole-like antenna with reconfigurable single/dual-wideband circular polarization

机译：具有可重配置的单/双宽带圆极化的双三角形单极天线

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摘要

A polarization and frequency reconfigurable circularly polarized (CP) antenna is proposedrnbased on a novel bilateral switching mechanism. Two triangular monopolernantennas are connected to each other in an L-shaped form by a narrow link to producerna CP operation. In the proposed technique, 4 PIN-diode-based switches arerndesigned with desired insertion loss and isolation, and only 2 DC-voltage controllers.rnThese switches are located on the links and the feed lines to realize a polarizationrnreconfigurable feature including both right-hand CP (RHCP) and left-hand CPrn(LHCP) modes. Moreover, 2 CP states, a single wideband operation and a dual-bandrnoperation, can be supported by this mechanism. In a special performance of thernswitches, CP reconfigurability can be obtained in a narrow-band mode aroundrn2.45 GHz. Two general simulations are performed based on the simple microstriprnlinks and a diode-circuit model. The measured results exhibit a wide overlappedrnbandwidth (AR<3 dB and VSWR<2) of 44.4% (1.63–2.56 GHz) with a peak gainrnof 2.88 dBi in the first state and 5.5% (1.22～1.29GHz) and 20.6% (2.12–2.61 GHz)rnwith the peak gains of 0.52 and 3.0 dBi in the second state, respectively. A widernbeamwidth is obtained more than 758. This work is appropriate for L- and S-band CPrndiversity applications.
机译：基于一种新型的双向切换机制，提出了一种极化和频率可重构的圆极化（CP）天线。两个三角形单极化天线通过与生产者CP操作的窄链接以L形形式相互连接。在提出的技术中，设计了4个基于PIN二极管的开关，具有所需的插入损耗和隔离度，并且仅设计了2个DC电压控制器。这些开关位于链路和馈线上，以实现极化可重新配置的功能，包括右侧CP （RHCP）和左侧CPrn（LHCP）模式。此外，此机制可以支持2个CP状态，即单宽带操作和双带宽操作。在这种特殊性能的交换机中，可以在2.45 GHz附近的窄带模式下获得CP可重新配置性。基于简单的微带连接和二极管电路模型，进行了两个常规仿真。测量结果显示出宽重叠带宽（AR <3 dB和VSWR <2）为44.4％（1.63-2.56 GHz），在第一状态的峰值增益为2.88 dBi，分别为5.5％（1.22〜1.29GHz）和20.6％（2.12）。 –2.61 GHz）在第二状态下的峰值增益分别为0.52和3.0 dBi。可获得大于758的较宽电子束宽度。这项工作适用于L波段和S波段CPrndiversity应用。

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