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This paper presents an UWB monopole antenna with rectangular slots on the patch and defected ground surface. The proposed antenna has a dimension of 25mm∗30mm∗1.6mm fabricated on FR4 dielectric substrate material with dielectric constant (εr) 4.4. The microstrip feed is incorporated to monopole with rectangular slots on both the ground plane and patch which produce the extra resonance frequencies...
We explore the feasibility of implementing anomaly based botnet detection on encrypted data to protect confidentiality of sensitive network data. We also provide experimental results on performance and storage of our SQL based implementation on network flow data. We analyze the workability of a secure encrypted database like CryptDB to build practical applications for intrusion detection use-cases.
Present work deals with the simulation based analysis of Dielectric Pocket (DP) TFET architecture over a wide range of temperature conditions i.e. 200K–400K. Initially the DP TFET with various dielectric engineered configurations has been tested where the gate-dielectric stack with underlap case seems more feasible and reliable from fabrication point of view. Next, the impact of temperature variations...
To continue with the trend of Moore's law, the use of conventional Si-MOSFETs can be replaced with high mobility channel MOSFETs. Among the high mobility channels, strained-Si channel MOSFETs have gained interest as they provide both hole and electron mobility enhancement which leads to higher performance of MOSFETs with downscaling. In this paper the electron mobility in strained Si channel has been...
In this paper, two methods are showed to identify the seismic source using an array signal processing technique. One method is applicable when there are multiple sources, and it identifies the directions of the sources, and the other one estimates the distance and angular position of a single seismic source. Both the methods uses MUltiple SIgnal Classifier (MUSIC) for array signal processing. In case...
This paper presents a U-shaped stub fed with coplanar wave guide (CPW) line and microstrip line to achieve ultra-wideband characteristics. Two kinds of antenna prototypes are designed, fabricated and measured. A1: CPW-fed U-shaped stub placed in a rectangular wide slot and A2: microstrip line fed U-shaped open stub. Both the antennas are designed on FR4 Epoxy substrate of thickness 1.6mm. Simulated...
A new Penta-Band Low Noise Amplifier (PB-LNA) for vehicular communication applications that works simultaneously at navigational frequencies viz., 1.2 GHz, 1.5 GHz and wireless Communication frequencies viz., 2.4 GHz, 3.3 GHz and Dedicated Short Range Communication frequency (DSRC), 5.8 GHz is designed and analysed. Frequency transformation method is adopted for the input matching network of the designed...
This article deals with efficient macromodeling of a microstrip-T coupled patch antenna as a state space model. The developed macromodel can be used as an efficient sub-system model of the antenna for simulating overall system containing the antenna. The proposed approach enables us to save valuable computational time and resources during analysis and design of wireless systems.
Gas leakage is a major problem in industries, residential premises and gas powered vehicles. The leakage if not detected may lead to explosion and cause severe damages to life and environment. The conventional leakage detection system uses on-site alarms for warning. In this paper, we propose a leakage detection method in which the leakage information is also sent to first response team through wireless...
Analysis of the volatile organic compounds in the human breath has emerged as a good method for the detection of various diseases. The concentration and distinctness of the Volatile Organic Compounds (VOC's) in the human breath varies with the disease. Colorectal cancer has been reported as one of the deadliest forms of cancer. It is amongst the 5 most common types of cancer that kill men. Methane...
A high sensitive Mach-Zehnder Interferometer (MZI) based fiber optic sensor for the measurement of sea water salinity has been demonstrated in this research. At first, femtosecond laser is used as the source and its performance in sensing salinity of sea water is analyzed. Secondly, a Carbon monoxide (CO) laser operating in the spectrum of 4.8 to 8.3 pm is used to excite the arms of MZI. It has been...
This paper reports the design, simulation, hardware implementation and testing of a sinusoidal pulse width modulation (SPWM) based single-phase voltage-source sine-wave inverter. SPWM is a promising method of switching for motor drive control and inverter applications. In this development, we implemented the bipolar SPWM voltage modulation scheme as this method, compared to the unipolar scheme, offers...
In this paper, a novel dielectric resonator antenna (DRA) design for ultrawideband (UWB) applications is proposed. A hybrid T-shaped DRA is excited by a conformal trapezoidal shaped patch feeding mechanism. It is observed that by introduction of air gap and use of two different DRA materials, Q-factor can be reduced and in turn UWB can be achieved. A rigorous parametric study of the proposed antenna...
Autism spectrum disorder (ASD) is a neurodevelopmental disorder. Obsessive tendencies, language deficits, and social deficits are the hallmarks of ASD. Poor information integration across functional networks of the brain may be the root cause of these deficiencies. Functional network connectivity (FNC) assessment among six brain networks, viz. anterior default mode network, posterior default mode...
This paper presents circular ring and square loop Band reject Frequency Selective Surfaces (FSSs) for dual band WiMax and single band WLAN applications. FSS consist of two square loops with four small square loops in back side & one square loop and circular ring with some slots in front side of the substrate. This FSS designed on the FR-4 dielectric substrate with a relative permittivity of 4...
Microscopic examination of stained tissue sections obtained from biopsies forms the foundation of pathologically diagnosing diseased organs. Although offering a multi-scale view of the system pathology, interpretation is often subjective. Inter- and intra-observer variation in reporting due to limitations in tissue staining methods accounts for this subjectivity. Variation in stain uptake often leads...
A dual-band antenna over dual-band artificial magnetic conductor surface operating in the wireless local area network (WLAN) bands is presented. The proposed dual-band antenna consists of a V-shaped slot etched on a CPW-fed trapezoidal shaped monopole antenna and has a size of 20 × 32 mm2. A 3 × 3 unit cell dual-band artificial magnetic conductor (AMC) surface has been used as a reflector for antenna...
Hereditary degenerative diseases of retina (such as Retinitis pigmentosa and age related macular degeneration), cause photoreceptor cell loss leading to progressive visual impairment. Since there is no medical treatment to reverse / overcome the effects of photoreceptor loss, restoring vision with the aid of a prosthetic seems to be the only option. Different types of prosthesis incorporating different...
A dual band MIMO antenna has been proposed for WLAN applications. The antenna comprises of two cup-shaped mounted with T-shaped structure monopole antennas placed parallel to each other with separated ground planes. The antenna is printed on an FR4 substrate of size 40 mm × 40 mm, both the antennas are fed with 50 Ω microstrip lines. The antenna operates at two WLAN bands including the IEEE 802.11...
Floating Gate Metal Oxide Semiconductor Field Effect Transistors (FGMOSFETs) for detection of ionization radiation are designed and fabricated in 1μm double poly Complementary Metal Oxide Semiconductor (CMOS) process. Electrical charging of floating gate through Fowler-Nordheim (FN) tunneling is implemented to optimize the sensitivity, and resetting for repeated use. The device response to 60Co gamma-radiation...
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