Compact frequency-reconfigurable circular patch antenna with varactor diode: Design, tuning, and compactness optimization

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Microwave and Optical Technology Letters Pub Date : 2024-10-02 DOI:10.1002/mop.34341

Abdulkadir Cildir, Mahmut Ahmet Gozel

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Abstract

In this study, a frequency-reconfigurable circular patch antenna with a varactor diode has been presented. The proposed antenna has been designed and investigated in four steps: circular patch antenna (Antenna 1), antenna with double slots (Antenna 2), antenna with quad slots (Antenna 3), and antenna with varactor diode (Antenna 4). The proposed antenna has been made compact with rectangular slots and a hyperabrupt junction tuning varactor diode (SMV1249-079LF). The proposed antenna has been designed and produced in 32 × 32 × 0.64 mm³ dimensions, approximately 80% minimized compared to a microstrip circular patch antenna operating at 850 MHZ resonance frequency. This frequency-reconfigurable antenna can perform between the range of 0.85–1.3 GHz frequency with 0–3 V DC voltage tuning of the varactor diode. So, using with the varactor diode, the proposed antenna has obtained a 53% tuning range between 0.85 and 1.3 GHz frequencies. This study offers a different antenna design, compactness, and high tuning ratio compared to previous studies. This frequency reconfigurable antenna can be preferred with its wideband structure in different communications areas and wireless energy transfer systems.

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带变容二极管的紧凑型频率可重构圆形贴片天线：设计、调谐和紧凑性优化

本研究提出了一种带有变容二极管的频率可重构圆形贴片天线。该天线的设计和研究分为四个步骤：圆形贴片天线（天线 1）、双槽天线（天线 2）、四槽天线（天线 3）和变容二极管天线（天线 4）。拟议的天线采用矩形槽和超突变结调谐变容二极管（SMV1249-079LF），结构紧凑。拟议的天线设计和生产尺寸为 32 × 32 × 0.64 mm3，与工作在 850 MHZ 谐振频率的微带圆形贴片天线相比，缩小了约 80%。通过变容二极管 0-3 V 的直流电压调节，这种频率可调式天线可在 0.85-1.3 GHz 频率范围内工作。因此，利用变容二极管，所提出的天线在 0.85 和 1.3 GHz 频率之间获得了 53% 的调谐范围。与之前的研究相比，这项研究提供了不同的天线设计、紧凑性和高调谐比。这种频率可重构天线具有宽带结构，可用于不同的通信领域和无线能量传输系统。

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication