Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The characteristic mode method is used to design a miniaturized dual-band dual circularly polarized (CP) implantable antenna operating in ISM bands. The miniaturization and dual-band characteristics are gained by using the slotting method and by inserting a short-circuit probe between the radiation patch and the ground plane. We use the characteristic mode method to study the current distribution of circular radiation patches with T-shaped slots in different modes. After opening a cross-shaped slot at the center of the radiation patch and the ground plane, we obtained two orthogonal modes with equal amplitude and phase difference of 90° in two operating frequency bands, ultimately achieving CP characteristics of the antenna. Its overall size is only ×(0.014 ) × 0.0027 , smaller than other CP implantable antennas with similar performances, and it has satisfactory radiation efficiency and gain characteristics. Measurements show that it can operate in the ISM bands of 0.9 and 2.4 GHz with an effective 3 dB axial ratio bandwidth greater than 220 MHz (0.87 to 1.09 GHz, 22.45%) and 230 MHz (2.31 to 2.54 GHz, 9.48%), and its peak gain is - 29.5 dBi and - 19.2 dBi, respectively. And, this design complies with IEEE safety guidelines.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11252335 | PMC |
| http://dx.doi.org/10.1038/s41598-024-67027-4 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A comprehensive panel of testing for amyloidosis.
J Histotechnol
September 2025
Department of Pathology, Peking University Third Hospital, Beijing, China.
Amyloidosis encompasses a spectrum of rare disorders characterized by extracellular amyloid deposition. Achieving an accurate early diagnosis of systemic amyloidosis necessitates biopsy-specific pathological evaluation. Formalin-fixed, paraffin-embedded liver biopsy specimens were examined using Congo red staining, electron microscopy, immunohistochemistry (IHC), immunofluorescence, and Congo red-assisted laser microdissection with mass spectrometry (LMD/MS).
View Article and Find Full Text PDFSystematic review of prospective hazard analysis in radiation therapy.
Med Phys
September 2025
Image X Institute, Faculty of Medicine and Health, University of Sydney, Eveleigh, New South Wales, Australia.
Introduction: Prospective hazard analysis (PHA) was introduced to the wider medical physics community by the initiation of American association of physicists in medicine task group 100 in 2003. Since then, there has been increasing interest in the applicability of PHA to radiotherapy for the purpose of keeping patients safe and assessing the risks within the whole practice of radiotherapy. The purpose of this research was to review the PHA literature focusing on which techniques and technologies have been assessed, how they have been assessed, and what can be learnt.
View Article and Find Full Text PDFDeveloping and Externally Validating the Multivariable Prediction Model for White-Coat Hypertension.
J Evid Based Med
September 2025
Department of Cardiology, The Eighth Affiliated Hospital, Southern Medical University (the First People's Hospital of Shunde), Foshan, China.
Aim: The white-coat hypertension (WCH) detection by monitoring the out-of-office blood pressure (BP) consumes resources and time. This study aimed at developing the prediction model based on patients' characteristics obtained from clinical data.
Methods: Individuals who participated in two large hospitals health check-up examination were screened.
Bioconversion of CO to methane energy by Methanococcus maripaludis in newly-designed bioreactor system: Kinetic characteristics, parameter optimization and grid-quality production.
Bioresour Technol
September 2025
State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China; Engineering Research Center of Microbial Enhanced Oil Recovery, East China University of Science and Technol
Carbon dioxide enhanced oil recovery (CO-EOR) is widely used for carbon capture, utilization, and storage in Chinese oilfields, but part of injected CO returns with produced oil, reducing carbon-reduction efficiency. Bioconverting this CO to methane energy by methanogens benefits the technology, yet on-site high-efficiency conversion meeting natural-gas grid standards remains challenging. This study used a newly-designed triple-tank bioreactor to investigate CO-to-methane conversion and methanogenic kinetics of Methanococcus maripaludis.
View Article and Find Full Text PDFToward universal immunofluorescence normalization for multiplex tissue imaging with UniFORM.
Cell Rep Methods
August 2025
Department of Biomedical Engineering and Computational Biology Program, OHSU, Portland, OR, USA; Knight Cancer Institute, OHSU, Portland, OR, USA. Electronic address:
We present UniFORM, a non-parametric, Python-based pipeline for normalizing multiplex tissue imaging (MTI) data at both the feature and pixel levels. UniFORM employs an automated rigid landmark registration method tailored to the distributional characteristics of MTI, with UniFORM operating without prior distributional assumptions and handling both unimodal and bimodal patterns. By aligning the biologically invariant negative populations, UniFORM removes technical variation while preserving tissue-specific expression patterns in positive populations.
View Article and Find Full Text PDF