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一种用于生物医学无线应用的具有改进频率比的多频段SSR二极管射频整流器。

A multiband SSr diode RF rectifier with an improved frequency ratio for biomedical wireless applications.

作者信息

Muhammad Surajo, Waly Mohamed Ibrahim, AlJarallah Nasser Ali, Ghayoula Ridha, Negm Ahmed S, Smida Amor, Iqbal Amjad, Tiang Jun Jiat, Roslee Mardeni

机构信息

Faculty of Engineering, Centre For Wireless Technology (CWT), Multimedia University, Cyberjaya, 63100, Malaysia.

Department of Electronics and Telecommunication Engineering, Ahmadu Bello University, Zaria, 810211, Nigeria.

出版信息

Sci Rep. 2023 Aug 15;13(1):13246. doi: 10.1038/s41598-023-40486-x.

DOI:10.1038/s41598-023-40486-x
PMID:37582883
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10427610/
Abstract

This paper described a four-band implantable RF rectifier with simplified circuit complexity. Each RF-rectifier cell is sequentially matched to the four operational frequencies to accomplish the proposed design. The proposed RF rectifier can harvest RF signals at 1.830, 2.100, and white space Wi-Fi bands between 2.38 to 2.68 GHz, respectively. At 2.100 GHz, the proposed RF harvester achieved a maximum (radio frequency direct current) RF-to-DC power conversion efficiency (PCE) of 73.00% and an output DC voltage [Formula: see text] of 1.61 V for an RF power of 2 dBm. The outdoor performance of the rectenna shows a [Formula: see text] of 0.440 V and drives a low-power bq25504-674 evaluation module (EVM) at 1.362 V. The dimension of the RF-rectifier on the FR-4 PCB board is 0.27[Formula: see text] [Formula: see text] 0.29[Formula: see text]. The RF-rectifier demonstrates the capacity to effectively utilize the frequency domain by employing multi-band operation and exhibiting a good impedance bandwidth through a sequential matching technique. Thus, by effectively controlling the rectenna's ambient performance, the proposed design holds the potential for powering a range of low-power biomedical implantable devices. (BIDs).

摘要

本文描述了一种具有简化电路复杂度的四频段植入式射频整流器。每个射频整流器单元依次与四个工作频率匹配，以实现所提出的设计。所提出的射频整流器能够分别在1.830GHz、2.100GHz以及2.38至2.68GHz之间的空白频段Wi-Fi频段采集射频信号。在2.100GHz时，所提出的射频能量采集器对于2dBm的射频功率实现了73.00%的最大（射频直流）射频到直流功率转换效率（PCE）以及1.61V的输出直流电压[公式：见原文]。整流天线的户外性能显示出0.440V的[公式：见原文]，并在1.362V驱动一个低功耗bq25504 - 674评估模块（EVM）。FR - 4印刷电路板上射频整流器的尺寸为0.27[公式：见原文][公式：见原文]0.29[公式：见原文]。该射频整流器通过采用多频段操作展示了有效利用频域的能力，并通过顺序匹配技术展现出良好的阻抗带宽。因此，通过有效控制整流天线的环境性能，所提出的设计具有为一系列低功耗生物医学植入设备（BIDs）供电的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/a51858bf84c7/41598_2023_40486_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/28c32bb36e12/41598_2023_40486_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/f2df20756a9d/41598_2023_40486_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/a77ff2e667fd/41598_2023_40486_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/26ac45e53ad3/41598_2023_40486_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/c0eef23ff853/41598_2023_40486_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/a51858bf84c7/41598_2023_40486_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/28c32bb36e12/41598_2023_40486_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/f2df20756a9d/41598_2023_40486_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/a77ff2e667fd/41598_2023_40486_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/26ac45e53ad3/41598_2023_40486_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/c0eef23ff853/41598_2023_40486_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c42/10427610/a51858bf84c7/41598_2023_40486_Fig6_HTML.jpg

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