A compact microstrip line-fed ultrawideband (UWB) tapered-shape slot antenna is presented. The proposed comprises a and rectangular tuning stub. fabricated onto an inexpensive FR4 substrate with overall dimension of 22 × 24 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . experiment shows that the achieves good impedance matching constant gain, stable radiation patterns over operating bandwidth 3-11.2 GHz (115.5%) covers entire UWB....

Traditional waste management system operates based on daily schedule which is highly inefficient and costly. The existing recycle bin has also proved its ineffectiveness in the public as people do not their properly. With development of Internet Things (IoT) Artificial Intelligence (AI), traditional can be replaced with smart sensors embedded into to perform real time monitoring allow for better management. aim this research develop a using LoRa communication protocol TensorFlow deep...

Internet of Things (IoT) based healthcare system is now at the top peak because its potentialities among all other IoT applications. Supporting sensors integrated with can effectively analyze and gather patients’ physical health data that has made ubiquitously acceptable. A set challenges including continuous presence professionals staff as well proper amenities in remote areas during emergency situations need to be addressed for developing a flexible system. Besides that, human entered are...

Electromagnetic band gap (EBG) technology has become a significant breakthrough in the radio frequency (RF) and microwave applications due to their unique characteristics at certain ranges. Since 1999, EBG structures have been investigated for improving performances of numerous RF devices utilizing surface wave suppression artificial magnetic conductor (AMC) properties these special type metamaterial. Issues such as compactness, wide bandwidth with low attenuation level, tunability,...

A miniaturized antenna employing a negative index metamaterial with modified split-ring resonator (SRR) and capacitance-loaded strip (CLS) unit cells is presented for Ultra wideband (UWB) microwave imaging applications. Four left-handed (LH) (MTM) are located along one axis of the as radiating element. Each cell combines to obtain design architecture that simultaneously exhibits both permittivity permeability, which ensures stable refractive improve performance imaging. The structure,...

A novel, low cost, and comprehensive microwave imaging (MWI) system is presented for the detection of unwanted tumorous cells into human breast. compact metamaterials (MTM) artificial magnetic conductor (AMC) surface-inspired coplanar waveguide fed (CPW-fed) microstrip antenna developed MWI applications. The initial wideband CPW designed by modified oval shape patch half cycle copper stripe line ground. incorporated with two layers uniplanar AMC structure which composed a 5 × array square...

Internet of Things (IoT) based application requires integration with the wireless communication technology to make data readily available. In this paper, a modified meander shape microstrip patch antenna has been proposed for IoT applications at 2.4 GHz ISM (Industrial, Scientific and Medical) band. The dimension is <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$40\times 10\times 1.6$...

A complementary split-ring resonator (CSRR) based metamaterial is designed and investigated in this paper for microwave applications with effective medium ratio. This CSRR the modification of conventional resonator. Three square resonators (SSRR) are interconnected a strip line as well two splits three applied to increase electrical length coupling effect. The has an impact on extraction permittivity, permeability, refractive index. dimension unit cell 5.5 × mm2 that printed FR4 material. An...

A gap coupled hexagonal split ring resonator (GCHSRR) based metamaterial is presented in this paper for S-band and X-band microwave applications with absorptance. This the amendment of typical split-ring (SRR). Three interconnected resonators are applied a stripline to increase electrical length coupling effect GCHSRR. SRR has an impact on extraction effective parameters such as permittivity, permeability refractive index. The dimension proposed GCHSRR unit cell 10 × mm <sup...

A broadband inverted E-H shaped microstrip patch antenna is proposed and experimentally investigated.The employs novel with L-probe feed technique.Prototype of the has been fabricated measured for electromagnetic analysis including impedance bandwidth, radiation pattern, gain.The designed a dimension 80 mm by 50 mm, leading to broad bandwidths covering 1.76 GHz 2.38 GHz.Stable patterns across operating bandwidth are observed.In addition, parametric study conducted facilitate design...

A compact wideband dual-frequency microstrip antenna is proposed in this paper. By employing an ofiset microstrip-fed line and a strip close to the radiating edges circular slot patch, operating at dual frequency with impedance bandwidth of 26.2% 22.2% respectively presented. attaching opposite line, alters current distribution radiation on second resonant frequency. The also tunable by varying lengths line. It demonstrated that covers widebands UHF microwave for RFID application. good...

A novel high-gain dual-band antenna for radio frequency identification (RFID) reader applications covering free ISM bands of 2.45 and 5.8 GHz is presented in this letter. The composed a U-shaped copper strip with unequal arm, printed rectangular ring, the ground plane. good impedance bandwidth 120 MHz has been achieved from 2.37 to 2.49 lower band, while upper band covers 420 (from 5.55 5.97 GHz). feeding excites ring effectively by providing matching over 85% total efficiency both also 9.56...

A new design technique of microstrip patch antenna is presented in this paper. The proposed consists inverted structure with air-fllled dielectric, direct coaxial probe feed and the novel slotted shaped patch. composite efiect integrating these techniques by introducing multi- patch, ofier a low proflle, high gain, broadband, compact element. wide impedance bandwidth 27.62% at i10dB return loss achieved. maximum achievable gain 9.41dBi. experimental 3-dB beamwidth (HPBW) azimuth elevation...

A double-sided printed compact antenna for UWB application is proposed. The proposed antenna, having a total size of 30×22 mm, consists patch fed by microstrip line and partial ground plane. modified plane with triangular shaped slots on its top edge helps to increase the bandwidth antenna. has (VSWR≤2) from 3.08 15.90 GHz maximum gain 5.9 dBi. Antenna radiation patterns show stable variation within operating band.

This paper presents a negative index metamaterial incorporated UWB antenna with an integration of complementary SRR (split-ring resonator) and CLS (capacitive loaded strip) unit cells for microwave imaging sensor applications. consists four along one axis, where each cell incorporates pair. enables design layout that allows both value permittivity permeability simultaneous, resulting in durable to enhance the performance The proposed MTM was designed fabricated on FR4 substrate having...

A new triangular metamaterials (TMMs) is designed for electromagnetic (EM) absorption reduction at microwave frequencies in this paper.The of EM with a TMMs attachment investigated research.The finite-difference time-domain method lossy-Drude model adopted investigation.The presented and the effects position, distance, size are analyzed.TMMs have achieved 1.0923 W/kg SAR 1 gm which 45.44% initial value case SAR.

A novel design of an electromagnetic bandgap (EBG) structure based on the uniplanar compact EBG (UCEBG) concept is proposed in this paper. The realized by inserting split- ring slots inside two reversely connected rectangular patches, which known as a split-ring slotted (SRS-EBG) structure. properties are examined suspended microstrip line and flnite element methods (FEM). achieved bandgaps have widths 4.3 (59.31%) 5.16GHz (38.88%), centered at 7 13GHz, respectively. SRS-EBG applied to...

In this paper, the design consideration is investigated for a cylindrical system with low-cost and low-loss dielectric materials detection of breast tumor using iteratively corrected delay multiply sum (IC- DMAS) algorithm. Anomaly in tissue one most crucial health issues women all over world today. Emergency medical imaging diagnosis can be harmlessly managed by microwave-based analysis technology. Microwave Imaging (MI) has been proved to reliable monitoring approach that play fundamental...

This paper presents the detection of brain tumors through YOLOv3 deep neural network model in a portable electromagnetic (EM) imaging system. is popular object with high accuracy and improved computational speed. Initially, scattering parameters are collected from nine-antenna array setup tissue-mimicking head phantom, where one antenna acts as transmitter other eight antennas act receivers. The images then reconstructed post-processed by applying modified delay-multiply-and-sum algorithm...

In this paper, proposes a microwave brain imaging system to detect tumors using metamaterial (MTM) loaded three-dimensional (3D) stacked wideband antenna array. The is comprised of metamaterial-loaded with three substrate layers, including two air gaps. One 1 × 4 MTM array element used in the top layer and middle layer, one 3 2 bottom layer. elements layers are utilized enhance performance concerning antenna's efficiency, bandwidth, realized gain, radiation directionality free space near...

A new high gain wideband L-probe fed inverted EE-H shaped slotted (LEE-H) microstrip patch antenna is presented in this paper. The design adopts contemporary techniques; feeding, structure with air-fllled dielectric, and patch. integration of these techniques leads to a low proflle as well useful operational features, the broadband gain. measured result showed satisfactory performance achievable impedance bandwidth 21.15% at 10dB return loss (VSWR • 2) maximum 9.5dBi. exhibits stable...

In this paper, reducing Specific Absorption Rate (SAR) with ferrite sheet attachment is investigated.The finite-difference time-domain method Lossy-Drude model adopted in study.The methodology of SAR reduction addressed and then the effects attaching location, distance, size material properties on are investigated.Computational results show that averaging over 10 gm was better than for 1 57.75% achieved gm.These way to choose a maximum effect phone model.