Cited by 33Energy Harvesting in Wireless NetworksWireless Body Area NetworksAntenna Design and Analysis

The DOI matches its Crossref record; 25 of the 27 references it cites were found in a registry or an index.

A Broad Dual-Band Implantable Antenna for RF Energy Harvesting and Data Transmitting

Open access
Fan, Yi, Liu, Xiongying, Xu, Chao·2022·Micromachines

Abstract

An implantable antenna, operating at the dual Industrial, Scientific, and Medical (ISM) bands of 902–928 MHz and 2.4–2.48 GHz, is presented for RF energy harvesting and data transmission. By introducing multiple radiating branches and etching a C-shaped slot, multiple resonant frequencies were generated to produce the wide dual bands. The proposed antenna has compact dimensions of 7.9 × 7.7 × 1.27 mm3. The simulated impedance bandwidths of the antenna are 0.67–1.05 GHz (44.2%) and 2.11–2.96 GHz (33.5%), and the peak gains are −28.9 dBi and −29.5 dBi, respectively. The lower band can be applied in RF energy harvesting, while the upper band is designed for data transmission with external medical equipment. Furthermore, to convert RF power into DC power, in RF energy harvesting, a voltage-doubled rectifier was positioned under the ground plane of the proposed antenna. The rectifier circuit can achieve a maximum conversion efficiency of 52% at an input power of 5 dBm. Furthermore, the integrated scheme of the implantable rectenna was fabricated and the numerical performance of the wireless power transfer was verified with the measurement results.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3390/mi13040563

Cites

25 of 25 references verified0 citation errors · 0 not checkable

Statistics

Figures

Figure 6 Simulated |S11| varying with the incline angles of implantation.
Figure 6 Simulated |S11| varying with the incline angles of implantation.CC BY · PubMed Central
Figure 7 Simulated |S11| varying with the implanted depths.
Figure 7 Simulated |S11| varying with the implanted depths.CC BY · PubMed Central
Figure 8 Simulated |S11| varying with the distance between the proposed antenna and the electrical system.
Figure 8 Simulated |S11| varying with the distance between the proposed antenna and the electrical system.CC BY · PubMed Central
Figure 9 Comparison of the simulated |S11| in the three-layer phantom of HFSS and the Hugo phantom of CST.
Figure 9 Comparison of the simulated |S11| in the three-layer phantom of HFSS and the Hugo phantom of CST.CC BY · PubMed Central
Figure 1 Geometry of the proposed implantable antenna.
Figure 1 Geometry of the proposed implantable antenna.CC BY · PubMed Central
Figure 2 Simulation environment of the three-layer phantom model.
Figure 2 Simulation environment of the three-layer phantom model.CC BY · PubMed Central
Figure 3 Evolution of the proposed antenna topology in (a) Case 1, (b) Case 2, (c) Case 3, and (d) Case 4.
Figure 3 Evolution of the proposed antenna topology in (a) Case 1, (b) Case 2, (c) Case 3, and (d) Case 4.CC BY · PubMed Central
Figure 4 Simulated results of different cases.
Figure 4 Simulated results of different cases.CC BY · PubMed Central
Figure 5 Simulated radiation patterns at (a) 915 MHz and (b) 2.45 GHz.
Figure 5 Simulated radiation patterns at (a) 915 MHz and (b) 2.45 GHz.CC BY · PubMed Central
Figure 10 Simulated SAR distributions for 10-gram tissues at (a) 915 MHz and (b) 2.45 GHz.
Figure 10 Simulated SAR distributions for 10-gram tissues at (a) 915 MHz and (b) 2.45 GHz.CC BY · PubMed Central
Figure 11 Measurement of the proposed antenna: (a) Fabricated antenna and (b) measurement setup.
Figure 11 Measurement of the proposed antenna: (a) Fabricated antenna and (b) measurement setup.CC BY · PubMed Central
Figure 12 Comparison between simulation and measurement.
Figure 12 Comparison between simulation and measurement.CC BY · PubMed Central
Figure 13 Schematic of the rectifier circuit. The parameters are: L1 = 18 nH, L2 = 5.1 nH, C1 = 100 pF, C2 = 330 pF, and RL = 4.3 kΩ.
Figure 13 Schematic of the rectifier circuit. The parameters are: L1 = 18 nH, L2 = 5.1 nH, C1 = 100 pF, C2 = 330 pF, and RL = 4.3 kΩ.CC BY · PubMed Central
Figure 14 Configuration for integrating the rectifier circuit as a rectenna.
Figure 14 Configuration for integrating the rectifier circuit as a rectenna.CC BY · PubMed Central
Figure 15 Effect of adding the rectifier layer on the proposed antenna.
Figure 15 Effect of adding the rectifier layer on the proposed antenna.CC BY · PubMed Central
Figure 16 RF-to-DC conversion efficiency and output DC voltage of the rectifier.
Figure 16 RF-to-DC conversion efficiency and output DC voltage of the rectifier.CC BY · PubMed Central
Figure 17 Evaluation of transmission efficiency and received power.
Figure 17 Evaluation of transmission efficiency and received power.CC BY · PubMed Central
Figure 18 Photograph of measurement setup for wireless power transfer: (a) Fabricated implantable rectenna and (b) measurement setup.
Figure 18 Photograph of measurement setup for wireless power transfer: (a) Fabricated implantable rectenna and (b) measurement setup.CC BY · PubMed Central
Figure 19 Measured output DC voltage and power transmission efficiency of the proposed rectenna at 915 MHz.
Figure 19 Measured output DC voltage and power transmission efficiency of the proposed rectenna at 915 MHz.CC BY · PubMed Central

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Research works printed but not linked: 1

  1. (2005). IEEE Standard for Safety Levels with Respect to Human Exposure to Radiofrequency Electromagnetic Fields, 3kHz to 300GHz (Standard No. IEEE Standard C95).

Cited by

Sorted by citations

See all 33

Metadata

Authors
Fan, Y., Liu, X., & Xu, C.
Affiliations
  • Guangdong Polytechnic Normal University (CN)
  • South China University of Technology (CN)
Corresponding author
Liu, Xiongying
Venue
Micromachines
Publisher
MDPI AG
Published
2022-03-31
Volume
13
Issue
4
Pages
563
ISSN
2072-666X (ISSN-L)
OpenAlex
W4221019483
Cited by
33
References
27
Citations by year
2026: 6 · 2025: 9 · 2024: 12 · 2023: 4 · 2022: 2
FWCI
1.85
Type
journal article
Language
en
Open access
Locations
  • Micromachines (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Science and Technology Planning Project of Guangdong Province (2015B010101006, 2014A010103014, 2017xm057)
  • National Natural Science Foundation of China (61372008)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Energy Harvesting in Wireless Networks
  • Physical Sciences › Engineering › Biomedical Engineering › Wireless Body Area Networks
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Antenna Design and Analysis
Keywords
implantable antenna, dual-band antenna, RF energy harvesting, rectenna, wireless power transfer, ISM band, C-shaped slot, multiple resonant frequencies, medical data transmission, antenna miniaturization

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review