Mariam el Gharbi

• PhD at Polytechnic University of Catalonia

This paper presents a study on the repeatability of washing effects on two antenna-based sensors for breathing monitoring. One sensor is an embroidered meander antenna-based sensor integrated into a T-shirt, and the other is a loop antenna integrated into a belt. Both sensors were subjected to five washing cycles, and their performance was assessed...

This paper introduces a flexible loop antenna-based sensor optimized for real-time monitoring of meat quality by detecting changes in dielectric properties over a six-day storage period. Operating within the 2.4 GHz ISM band, the sensor is designed using CST Microwave Studio 2024 to deliver high sensitivity and accuracy. The sensing mechanism lever...

Breathing rate is a crucial vital sign for evaluating well-being and identifying underlying diseases related to the respiration system. This paper presents a fully stretchable triangular loop antenna-based sensor for real-time respiration monitoring. This antenna is integrated into a commercially available T-shirt, which is made of stretchable cond...

This study showcases the creation of an innovative textile antenna sensor that utilizes a resonant cavity for the purpose of liquid characterization. The cavity is based on circular substrate integrated waveguide (SIW) technology. A hole is created in the middle of the structure where a pipe is used to inject the liquid under test. The pipe is cove...

Wearable technology has been getting more attention for monitoring vital signs in various medical fields, particularly in breathing monitoring. To monitor respiratory patterns, there is a current set of challenges related to the lack of user comfort, reliability, and rigidity of the systems, as well as challenges related to processing data. Therefo...

In this paper we present the design and the validation of a novel fully embroidered meander dipole antenna-based sensor integrated into a commercially available T-shirt for real-time breathing monitoring using the technique based on chest well movement analysis. The embroidered antenna-based sensor is made of a silver-coated nylon thread. The propo...

This paper presents a monopole antenna-based sensor for measuring different amounts and concentrations of salt and sugar in water. The proposed antenna sensor consists of a textile monopole antenna with circular-ring and partial ground plane. It is implemented by means of embroidery on a felt textile substrate and it resonates at 2.4 GHz. The texti...

In this paper, a feasibility study of a microwave antenna-based sensor is proposed for in vitro experiments for monitoring blood glucose levels. The proposed device consists of a square-ring incorporated within a fully textile monopole antenna to absorb and sense different glucose concentrations, covering patients with different diabetic conditions...

In this work, a new flexible antenna integrated with OLED light sources is presented for WiMAX wireless communication systems. The proposed antenna was placed on a 100% polyester base with a thickness of 1.5 mm and achieved a high gain. We evaluated and tested its performance, including reflection coefficient, radiation pattern and gain. The flexib...

This review paper summarizes various approaches developed in the literature for antenna sensors with an emphasis on flexible solutions. The survey helps to recognize the limitations and advantages of this technology. Furthermore, it offers an overview of the main points for the development and design of flexible antenna sensors from the selection o...

This paper is devoted to a novel textile ultra-wideband (UWB) antenna for wearable applications. The antenna is designed and implemented on a felt textile substrate with attractive features such as a flexible full embroidered topology and a low dielectric loss. In this study, the UWB antenna is evaluated through the reflection coefficient (S11), ga...

This paper presents a design of a high gain cavity-backed circular patch antenna for X-band applications. By using substrate integrated waveguide (SIW) based cavity and feeding mechanism of a microstrip-SIW-transition based on a taper. The proposed antenna is investigated in terms of antenna performances including reflection coefficient, gain, and...

In this paper, a new cavity backed triangular slot-antenna based on substrate integrated waveguide (SIW) is presented investigated in terms of antenna performances including S-parameter, gain and radiation pattern. The proposed antenna fed by a microstrip-to-SIW transition based on a taper which is has good electrical performance in terms of adapta...

This paper presents design of ring–shaped wide-band band pass filter with notched band. The ring –shaped UWB BPF using a simplified composite right/left handed (SCRLH) resonator. The narrow band notch responses produced by DMS (Defected trip Micros Structure) was introduced at a frequency of 5.2 GHz in order to reject any undesired signals which ma...

In this paper, a cavity backed triangular slot-antenna, which has novel feeding structures such as a substrate integrated waveguide (SIW) and two different feeding transitions, is investigated in terms of electrical performances, including reflection coefficients, gain and radiation patterns. In addition, in order to check the effects of feeding tr...