Publications by authors named "Norhanani Abd Rahman"

In this work, the high-quality factor (Q-factor) and high sensitivity of a circular substrate-integrated waveguide (CSIW) are proposed for the characterization of semisolid materials. The modeled sensor was designed based on the CSIW structure with a mill-shaped defective ground structure (MDGS) to improve measurement sensitivity. The designed sensor oscillates at a single frequency of 2.

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Article Synopsis
  • A miniaturized microwave sensor using a complementary split-ring resonator (CSRR) is developed for detecting liquids, featuring a triple-ring design for enhanced sensitivity at a frequency of 2.5 GHz.
  • The sensor's performance is tested with five liquid mediums, including air and various alcohols, demonstrating a high Q-factor of 520 and sensitivity of 7.032 MHz, making it effective for measuring solute concentrations.
  • The study also explores the correlation between permittivity and Q-factor at the resonant frequency, highlighting the sensor's potential for accurately characterizing liquid materials.
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This article proposes the design, fabrication and measurement of a triple-rings complementary split-ring resonator (CSRR) microwave sensor for semi-solid material detection. The triple-rings CSRR sensor was developed based on the CSRR configuration with curve-feed designed together, utilizing a high-frequency structure simulator (HFSS) microwave studio. The designed triple rings CSRR sensor resonates at 2.

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A compact and low-profile curve-feed complementary split-ring resonator (CSRR) microwave sensor for solid material detection is presented in this article. The curve-feed CSRR sensor was developed based on the CSRR configuration with triple rings (TRs) designed together, utilizing a high-frequency structure simulator (HFSS) microwave studio. The designed curve-feed CSRR sensor resonates at 2.

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Recent developments in the field of microwave planar sensors have led to a renewed interest in industrial, chemical, biological and medical applications that are capable of performing real-time and non-invasive measurement of material properties. Among the plausible advantages of microwave planar sensors is that they have a compact size, a low cost and the ease of fabrication and integration compared to prevailing sensors. However, some of their main drawbacks can be considered that restrict their usage and limit the range of applications such as their sensitivity and selectivity.

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