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A microgrid is a clear energy system consisting of demand management, storage, generation system and loads which are capable of operating in parallel or independently with the main power grid. There are some issues in the inverter circuit design which are, high frequency switching loss and noise. In addition, an electrostatic generator generates high voltage DC and low current. Any types of wave distortion...
Several techniques have been investigated in this paper to propose the reduction of phase noise due to electro-magnetic interference for inductor based ultra-wide band voltage controlled oscillator (VCO). Furthermore, figure of merit of VCO and its tuning range have been compared to exhibit the improved performance. According to article, phase noise has been stated as −151 dBc/Hz at 20 MHz offset...
This paper presents a review of the various inverter topologies, showing their utility in generating stepped waveform. The role of the PWM is highlighted in the operation of inverter for generating stepped-wave forms. The results show how similarly generated PWM used by different topologies can result into a stepped-waveform output capable of producing and AC closer to single fundamental component...
Even though the UWB passive RFID is getting so much attention for the researchers with the goal of replacing the conventional barcode system, the tag dimension still remains as a big issue which makes the tag price comparatively higher than the barcode. Many proposals have been made for last one decade to overcome this problem. In this paper an approach has been made to combine two different methods...
A transport phenomenon of carbon nanotube field effect transistor (CNTFET) is proposed in this paper. Non-Equilibrium Green's Function (NEGF) is used to design the proposed model. CNT chiral vector is straightly connected with CNTFET transport properties by this method. The ballistic CNTFET is realized by the carrier transport in the conduction and valence band. This phenomenon of CNT introduces a...
In this article, a planar wideband microstrip patch antenna for ultrahigh frequency (UHF) radio identification (RFID) tag is presented. By incorporating two resonating C‐shape patches, two resonances are excited close to each other to create wide impedance bandwidth to cover the entire operating frequency of UHF RFID system between 860 and 960 MHz for universal metal mountable tag. For complex impedance...
One of the world's most leading killer diseases is the cardiovascular disease, which accounts for 16.7 million deaths annually. Out of the total population in the world, about 22 million people run the risk of sudden heart failure. However, saving the lives of cardiac patients can be improved by the emergency monitoring so that the initiation of treatment can be taken up within the crucial hour. The...
A planar wideband patch antenna for ultra-high frequency (UHF) radio frequency identification (RFID) tag for metallic applications is presented in this research work. Three different shape patches are inductively coupled to a triangle loop to excite three resonances close to each other to form wide impedance bandwidth for universal application UHF (860–960 MHz) RFID. The structure of the proposed...
Ultra wideband (UWB) chipless RFID tag of microwave band is used to study the location of an object. Two microwave antennas for narrow bandwidth beam used for scanning purpose. The antennas are mounted on two digital stepper motor driven systems. The location of the tagged object is measured from the angular position of the antennas. A squire space of 25 m2 and 1 m2 resolution are used for the project...
Recent works on different types of Brain Computer Interface (BCI) and their performance analysis have provided some remarkable features for applications. The aim of this work is to compare the accuracies of different types of BCI to find out the suitable techniques. The study shows that each technique performance depends on the type of BCI. A batter performance of the BCI systems is supported by the...
In this research, a planar wideband microstrip patch antenna for passive radio frequency identification (RFID) tag is proposed. To enable universal operation by covering the operating frequency of ultra-high frequency (UHF) RFID band from 860 MHz to 960 MHz, two C-shaped patches are employed. Both of the patches are inductively coupled fed by a rectangular loop feeding network for complex impedance...
Developing and less developing countries (LDCs) are identified in risk of stillbirth due to insufficient emergency medical take-care supports. The regular check-up of the fetal electrocardiography (FECG) could be an earliest prevention of this occurrence. This paper presents a research work aim to implement a simple, customize and portable emergency medical care for the FECG monitoring system from...
Automated-reading process of an RFID reader can be interrupted due to the relative orientation of the transponder (tag) antenna with respect to the reader antenna. This article proposed a modified revolving magnetic field based RFID reader, which is capable to produce a rotating near field in space. When a magnetically coupled RFID tag placed in the near field zone or read range, the tag can easily...
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