Results 31 to 40 of about 92,047 (225)

Low power CMOS iImage sensor for face recognition [PDF]

open access: yes, 2020
Imaging system is suitable for different purposes, depending upon their final application. Digital cameras, camcorders, webcams, security cameras or infrared (IR) cameras are well-known imaging systems.
Chan, Kit Heng, Ruslan, Siti Hawa
core  

The rigorous analysis of strongly coupled step discontinuities in microstrip [PDF]

open access: yes, 1987
A rigorous analysis of boxed microstrip single-step discontinuities and cascades of strongly coupled discontinuities is presented. Use is made of a variational formulation involving the expansion of the transverse E field at the step in terms of suitable
Railton, CJ, Rozzi, T
core   +4 more sources

A study of water-mist recirculation system for filtration and cooling effect in the kitchen hood ventilation system [PDF]

open access: yes, 2020
Water-mist spray system in several heavy-duty kitchen hood canopies are installed to efficiently control the high heat loads and grease emissions produced from the cooking process and for safety purposes.
Nor Salim, Nor Adrian
core   +1 more source

A Comparative Study of Narrow/Ultra-Wideband Microwave Sensors for the Continuous Monitoring of Vital Signs and Lung Water Level

open access: yesSensors
This article presents an in-depth investigation of wearable microwave antenna sensors (MASs) used for vital sign detection (VSD) and lung water level (LWL) monitoring.
Anwer S. Abd El-Hameed   +3 more
doaj   +1 more source

Multistep Transitions From Microstrip and GCPW Lines to SIW in 5G 26 GHz Band

open access: yesIEEE Access, 2021
Substrate integrated waveguides (SIW) are a topic of interest for many researchers, due to their power handling capabilities and compatibility with planar processing techniques.
Alfonso Gomez Garcia   +3 more
doaj   +1 more source

Substrate Optimization for Integrated Circuit Antennas [PDF]

open access: yes, 1982
The reciprocity theorem and integral equation techniques are employed to determine the properties of integrated-circuit antennas. The effect of surface waves is considered for dipole and slot elements on substrates.
Alexopoulos, Nicolaos G.   +2 more
core   +2 more sources

Ultra wideband vertical microstrip–microstrip transition

open access: yesIET Microwaves, Antennas & Propagation, 2007
Simple design guidelines for an ultra wideband aperture-coupled vertical microstrip-microstrip transition are presented. The proposed transition uses broadside coupling between elliptical-shaped microstrip patches at the top and bottom layers via an elliptical-shaped slot in the mid-layer.
openaire   +2 more sources

Cutting-Edge Microwave Sensors for Vital Signs Detection and Precise Human Lung Water Level Measurement

open access: yesMagnetism
In this article, a comprehensive review is presented of recent technological advancements utilizing electromagnetic sensors in the microwave range for detecting human vital signs and lung water levels.
Anwer S. Abd El-Hameed   +3 more
doaj   +1 more source

Design of a Super Compact UWB Filter Based on Hybrid Technique with a Notch Band Using Open Circuited Stubs

open access: yesAdvanced Electromagnetics, 2020
This paper presents a new design of a super compact Ultra wideband (UWB) band-pass filter (BPF) with rejection of X-band satellite applications. For covering the UWB bandpass, the proposed filter is realized using hybrid technique which is achieved by ...
H. El Omari El Bakali   +4 more
doaj   +1 more source

Microwave Near-Field Imaging of Electric Fields in a Superconducting Microstrip Resonator

open access: yes, 1998
We describe the use of a cryogenic near-field scanning microwave microscope to image microwave electric fields from superconducting and normal-metal microstrip resonators.
Ashfaq S. Thanawalla   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy