Dual-port circularly polarized dielectric resonator–based antenna with reconfigurable integrated multifunctional filter for 5G cognitive radio applications

IF 1.4 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Microwave and Wireless Technologies Pub Date : 2024-03-08 DOI:10.1017/s175907872400028x

Yajush Rai, Deepak Sigroha, Krishna Tyagi, Gourab Das, Anand Sharma

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引用次数: 0

Abstract

In this paper, the design of a circularly polarized (CP) multiple-input–multiple-output (MIMO) antenna system is presented, utilizing a dielectric resonator (DR). This presented antenna system is subsequently integrated with a multifunctional filter, all meticulously structured on a single substrate. The multifunctional filter operates in three modes: reconfigurable band-pass and band-reject filter as well as all-pass filter. The overall structure works as a tunable filtenna. The designed filtenna is expanded into a two-port MIMO system on a unified substrate, providing strong port isolation below −28.5 dB. The overall dimension of proposed radiator is 180 × 180 × 1.6 mm3. The value of peak gain is 5.19 dBic. By switching the states of PIN diodes, the designed filtenna operates as a sensing and communicating antenna for interweave and underlay cognitive radios (CRs). The proposed antenna supports the CP waves within the working band, i.e., 3.6–4.5 GHz. The simulated results are validated by comparing them with the measured results showing less variation among them. MIMO parameters, including the envelope correlation coefficient and diversity gain, have been calculated for the proposed filtenna, representing its suitability for 5G-CR applications.

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基于介质谐振器的双端口圆极化天线与可重构集成多功能滤波器，适用于 5G 认知无线电应用

本文介绍了利用介质谐振器（DR）设计的圆极化（CP）多输入多输出（MIMO）天线系统。该天线系统随后与一个多功能滤波器集成在一起，所有结构都精心设计在一块基板上。多功能滤波器有三种工作模式：可重新配置的带通和带阻滤波器以及全通滤波器。整体结构可作为可调滤波器使用。所设计的滤波器在统一的基板上扩展为双端口 MIMO 系统，提供低于 -28.5 dB 的强端口隔离。拟议的辐射器总尺寸为 180 × 180 × 1.6 mm3。峰值增益为 5.19 dBic。通过切换 PIN 二极管的状态，所设计的滤波器可用作交织和覆盖认知无线电（CR）的传感和通信天线。所提议的天线支持工作频段（即 3.6-4.5 GHz）内的 CP 波。模拟结果通过与测量结果的比较进行了验证，结果显示两者之间的差异较小。已计算出拟议滤波器天线的 MIMO 参数，包括包络相关系数和分集增益，表明其适用于 5G-CR 应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Microwave and Wireless Technologies ENGINEERING, ELECTRICAL & ELECTRONIC-TELECOMMUNICATIONS

CiteScore

3.50

自引率

7.10%

发文量

130

审稿时长

6-12 weeks

期刊介绍： The prime objective of the International Journal of Microwave and Wireless Technologies is to enhance the communication between microwave engineers throughout the world. It is therefore interdisciplinary and application oriented, providing a platform for the microwave industry. Coverage includes: applied electromagnetic field theory (antennas, transmission lines and waveguides), components (passive structures and semiconductor device technologies), analogue and mixed-signal circuits, systems, optical-microwave interactions, electromagnetic compatibility, industrial applications, biological effects and medical applications.