Results 11 to 20 of about 7,010 (166)

Design of a Wide-Bandwidth, High-Gain and Easy-to-Manufacture 2.4 GHz Floating Patch Antenna Fed with the Through-Wire Technique

Applied Sciences, 2022
This paper presents a feasibility study for designing a floating patch antenna structure fed with a probe from a microstrip. The main premise is to eliminate the dielectric in the patch design, which is equivalent to having an air dielectric and leads to
Marcos D. Fernandez, Darío Herraiz, David Herraiz, Akram Alomainy, Angel Belenguer   +4 more
doaj   +1 more source

Single‐fed 4G/5G multiband 2.4/5.5/28 GHz antenna

IET Microwaves, Antennas & Propagation, 2019
In this study, a single‐fed printed multiband antenna for 4G/5G wireless communication systems is presented. The proposed multiband antenna consists of Franklin strip monopole antenna to cover 4G, and wireless applications (WLAN and WiMAX), and a ...
Mohammed E. Yassin, Hesham A. Mohamed, Esmat A.F. Abdallah, Hadia S. El‐Hennawy   +3 more
doaj   +1 more source

Low SAR, Simple Printed Compact Multiband Antenna for Mobile and Wireless Communication Applications

International Journal of Antennas and Propagation, 2014
Simple multiband planar antenna for wireless communication applications is presented. The proposed antenna performs four resonant modes covering multibands of wireless standards, including LTE 700, GSM, DCS, PCS, UMTS, and LTE 2300/2500.
K. S. Sultan, H. H. Abdullah, E. A. Abdallah   +2 more
doaj   +1 more source

A Survey of Differential-Fed Microstrip Bandpass Filters: Recent Techniques and Challenges

Sensors, 2020
Differentially driven devices represent a highly promising research field for radio frequency (RF), microwave (MW), and millimeter-wave (mmWave) designers and engineers.
Yasir I. A. Al-Yasir, Naser Ojaroudi Parchin, Ahmed M. Abdulkhaleq, Mustafa S. Bakr, Raed A. Abd-Alhameed   +4 more
doaj   +1 more source

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

IEEE 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, Yolanda Campos-Roca, Rafael Gomez Alcala, Jesus Rubio   +3 more
doaj   +1 more source

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

Sensors
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, Dalia M. Elsheakh, Gomaa M. Elashry, Esmat A. Abdallah   +3 more
doaj   +1 more source

Ultra wideband vertical microstrip–microstrip transition

IET 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

Magnetism
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, Dalia M. Elsheakh, Gomaa M. Elashry, Esmat A. Abdallah   +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

Advanced 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, H. Elftouh, A. Farkhsi, A. Zakriti, M. El Ouahabi   +4 more
doaj   +1 more source

Microstrip doubler microwave with non-traditional implementation

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2019
Frequency multipliers are used in electronic devices to generate spectrally pure sinusoidal signals in the frequency range from a few to tens of GHz. The multipliers are used to multiply the frequency of highly stable but more low-frequency devices with ...
E. Glushechenko
doaj   +1 more source