A FILTERING DIELECTRIC RESONATOR ANTENNA USING CPW-FED FOR SUB-6 GHZ APPLICATIONS

IF 0.7 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Progress in Electromagnetics Research Letters Pub Date : 2022-01-01 DOI:10.2528/pierl22041002

Chuanyun Wang, Lina Wang, Yonghua Zhang, Wei Hu, Xiaofeng Jiang

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引用次数: 1

Abstract

|A (cid:12)ltering dielectric resonator antenna (FDRA) using an inductive CPW (coplanar waveguide) feed structure is proposed. Simultaneously, a pair of slotline stubs are respectively loaded on the signal line and ground of the CPW feed structure, which is used to generate radiation nulls near the edges of the passband. Furthermore, the two radiation nulls can be controlled independently by adjusting the length of the loaded two pairs of slotline stubs. In addition, it is interesting that TE 111 mode is split due to the diﬀerent loading eﬀects of slotline stubs in feed network, thereby three resonances in the passband are formed. Finally, an FDRA with quasi-elliptic function response is realized without additional (cid:12)ltering circuit. The prototype of the FDRA operating at 3.53 GHz was fabricated and measured to verify the design validity. The measured results show that the impedance bandwidth is 13.6% (3.29{3.77 GHz); the gain is basically stable at 5.7 dBi within the passband; and the two radiation nulls are located at 3.05 GHz and 3.88 GHz, respectively.

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一种用于6ghz以下应用的滤波介质谐振器天线，采用cpw馈电

提出了一种采用电感共面波导馈电结构的|a (cid:12)滤波介质谐振器天线(FDRA)。同时，在CPW馈电结构的信号线和地上分别加载一对槽线存根，用于在通带边缘附近产生辐射零点。此外，可以通过调整加载的两对槽线桩的长度来独立控制两个辐射零点。此外，有趣的是，由于馈电网络中槽线存根的不同负载效应，TE 111模式被分割，从而在通带中形成三个共振。最后，在不增加(cid:12)滤波电路的情况下，实现了具有准椭圆函数响应的FDRA。制作了工作频率为3.53 GHz的FDRA样机并进行了测量，验证了设计的有效性。测量结果表明，阻抗带宽为13.6% (3.29{3.77 GHz);通带内增益基本稳定在5.7 dBi;两个辐射零点分别位于3.05 GHz和3.88 GHz。

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来源期刊

Progress in Electromagnetics Research Letters ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.20

自引率

11.10%

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