This study introduces a low noise amplifier (LNA) designed specifically for lower ultrawideband (UWB) applications. The presented LNA is based on current-reuse common source (CS) architecture so as to achieve energy efficiency without sacrificing the performance. With 1.2V supply voltage, proposed consumes 2.52 mW power and achieves 16.81 dB peak gain at 4.2 GHz frequency, with 1.28 of 3-dB bandwidth. average figure (NF) achieved 2.98 across design realized using standard 0.18 µm CMOS...

As a tropical country Bangladesh receives substantial amount of solar insolation suitable for PV application. Being an agricultural economy, the irrigation need is increasing day by day. Use diesel run pumping system neither cost effective nor environment friendly. Even though 47.8% total pumps are which emits huge CO2 and other toxic gases. In this paper typical year round load has been modelled used to analyze feasibility replacing with powered motor-pump systems in HOMER. It was found...

Vibration in electrical and mechanical systems is an important parameter which related to the health, stability efficiency. In practical condition, system distributed most of time unreachable during their operating time. this paper, triple axis wireless vibration monitoring for described. The also includes development real graphical user interface with MATLAB. Here accelerometer ADXL335 used acceleration measurement , cost effective ARM M4 processor TM4C123GXL as processing unit low power...

Detection of blood vessel from fundus image is a difficult task since some portions this lack contrast and are sometimes obscure. Analysis images patients taking decisions correctly tedious tasks for ophthalmologists. The efficiency Markov Random Field (MRF) based segmentation detection better than the highly complex methods. In paper, MRF model used to segment detect vessels. Markov-Gibbs equivalence Bayesian rule find energy clique sets joint distribution respectively. result optimized by...

Due to climate change and high price of fossil fuel, demand electricity for irrigation need is increasing. Harnessing solar power meet this increasing can be a good solution. In paper, we have shown the design performance analysis directly coupled photovoltaic (PV) motor-pump system operating at Gaibandha, Bangladesh. Three 1kW DC series motor with pumps were powered by panels 2kWp. The connected without any converter. All components available bought from local market. With average...

Monitoring electrical activity from numerous neurons with the help of a high-channel count neural recording system is crucial for state-of-the-art approaches in neuroscience research and clinical treatment. The performance trade-offs such as channel count, total power consumption, noise, area, robustness need to be optimized compatibility signal acquisition system. This work proposes an implantable 32-channel system-on-chip (SoC), which includes 32 amplifiers, analog multiplexer (MUX),...

This work provides a new simultaneous noise and impedance matching (SNIM) methodology for designing 3–5 GHz ultrawideband low-noise amplifier (LNA) in 0.18 μm complementary metal–oxide–semiconductor (CMOS) process using the advanced design system platform. To justify proposed method, common gate (CG)- source (CS)-input-matched LNAs are designed where variation of input over whole operating band is significantly reduced by applying multifinger layout technique employing shunt passive elements...

A cylindrical-pillar-based new meta-surface-assisted ultra-wideband window is proposed, designed and simulated, in the present paper, for a wideband gyro-traveling-wave tube. The return-loss characteristics were analyzed by simulation high-frequency structure simulator to calculate bandwidth at an allowable return loss of −17 dB center frequency 44.42 GHz operating 32.10 (28.31–60.47 GHz) which 72.26% relative circular TE0,1 mode. results with respect parameters/characteristics validated...

Temperature measurement and control in different points of industrial machines are one the most important parameters for smooth reliable operations. Most traditional temperature monitoring systems industries developing countries based on either wire or thermocouple infrared thermal scanner. In this paper, distributed is measured within range -40°C to 1350°C using K type via a wireless sensor network (WSN). To construct WSN, zigbee used. The coordinator connected with main processing unit...

Stability analysis is an important criterion which should be assessed at the starting of amplifier design. In this paper, a graphical method proposed to make perfect trade-off between stability and noise figure (NF) when bias voltages transistor sizes are evaluated. A single stage operating 1 GHz designed with Keysight's Advanced Design System (ADS) in 0.18 um CMOS process justify validity method.

Recently, reconfigurable intelligent surface (RIS) has attracted continuous attention in wireless communications. As the normal incidence condition of electromagnetic waves cannot always be satisfied practical applications, angular sensitivity incident and reflected on performance such RIS needs to assessed modeled. In this work, impact angles scattering parameters been through an RIS. The unit cell proposed consists a square spilt-ring-resonator which is designed FR-4 dielectric substrate...

Neural signal recording and optical stimulation using implantable devices have become a ubiquitous method to treat brain disorders, yet there lie some shortcomings, such as size, weight, functionalities of the implants. This work presents commercial off-the-shelf (COTS) component-based miniaturized wireless optogenetic headstage with simultaneous electrophysiological for freely moving rats. The system includes battery-based neural stimulator consisting low-dropout (LDO) regulator, an...

The next evolutionary step in biological signal monitoring will be enabled by wireless communication. Low power and cost-efficient transceivers are currently being employed for implantable medical devices (IMDs), addition to military civilian applications such as monitoring, surveillance, home automation. major goal of this paper is do a thorough realistic link budget analysis an transceiver operating the 3–5 GHz ultrawideband frequency with distance 2 m (which includes 10 mm brain tissue...

This paper investigates the theoretical performance analysis for a subcarrier multiplexed (SCM) wavelength division multiplexing (WDM) optical transmission system in presence of beat interference (OBI) which occurs during photo detection process. We have presented comparison improving SCM-WDM OBI. Non-return-to zero (NRZ), Manchester and Miller code (MC) line coding are used investigation system. A suitable signal bandwidth is selected 200 KHz considered as channel bandwidth. Power spectrum...