Results 21 to 30 of about 34,611 (261)

Bandwidth Enhancement Technique of the Meandered Monopole Antenna

International Journal of Antennas and Propagation, 2015
A small dual-band monopole antenna with coplanar waveguide (CPW) feeding structure is presented in this paper. The antenna is composed of a meandered monopole, an extended conductor tail, and an asymmetrical ground plane.
Chien-Jen Wang, Dai-Heng Hsieh
doaj   +1 more source

Terahertz Reflectarray with Enhanced Bandwidth

Advanced Optical Materials, 2019
AbstractReflectarrays offer unique potential for beamforming at terahertz frequencies as they combine the advantages of low‐profile of phased arrays and high‐efficiency of parabolic antennas. However, one challenge associated with reflectarrays is their bandwidth limitation resulting from the nonlinear phase response.
Xiaolong You, Rajour T. Ako, Wendy S. L. Lee, Mei Xian Low, Madhu Bhaskaran, Sharath Sriram, Christophe Fumeaux, Withawat Withayachumnankul   +7 more
openaire   +5 more sources

Bandwidth Enhancement of Dielectric Resonator Reflectarray Antenna [PDF]

Electromagnetics, 2014
Aperture-coupled dielectric resonator antenna is proposed using a novel reflectarray antenna unit cell structure. It is shown that a bowtie-shaped slot can enhance the bandwidth performance of a reflectarray antenna. The unit cell's reflection phase response was verfified experimentally using the waveguide simulator method.
Ahmadi, Farzaneh, Forooraghi, Keyvan, Atlasbaf, Zahra, Virdee, Bal Singh   +3 more
openaire   +2 more sources

Microstrip Patch Antenna Bandwidth Enhancement Using AMC/EBG Structures

International Journal of Antennas and Propagation, 2012
A microstrip patch antenna with bandwidth enhancement by means of artificial magnetic conductor (AMC)/electromagnetic band-gap structure (EGB) is presented. The electrical characteristics of the embedded structure are evaluated using MoM simulations. The
R. C. Hadarig, M. E. de Cos, F. Las-Heras   +2 more
doaj   +1 more source

Bandwidth Improvement of an Inverted-F Antenna Using Dynamic Hybrid Binary Particle Swarm Optimization

Applied Sciences, 2021
This paper proposes a Dynamic Hybrid Binary Particle Swarm Optimization (DH-BPSO) algorithm to improve the bandwidth of an inverted-F antenna (IFA). The proposed algorithm improves upon the existing Artificial Immune System (AIS) algorithm by including a
Jude Alnas, Garrett Giddings, Nathan Jeong   +2 more
doaj   +1 more source

Study on bandwidth enhancement techniques of microstrip antenna

Journal of Electrical Systems and Information Technology, 2016
In this paper we present a Novel Triangular UWB microstrip antenna which offers an ultra-wide bandwidth (UWB) greater than 8 GHz. This optimum antenna design provides satisfactory gain all over the UWB.
Ragab M. Elsagheer
doaj   +1 more source

A Wristwatch-Based Wireless Sensor Platform for IoT Health Monitoring Applications

Sensors, 2020
A wristwatch-based wireless sensor platform for IoT wearable health monitoring applications is presented. The paper describes the platform in detail, with a particular focus given to the design of a novel and compact wireless sub-system for 868 MHz ...
Sanjeev Kumar, John L. Buckley, John Barton, Melusine Pigeon, Robert Newberry, Matthew Rodencal, Adhurim Hajzeraj, Tim Hannon, Ken Rogers, Declan Casey, Donal O’Sullivan, Brendan O’Flynn   +11 more
doaj   +1 more source

HIFI++: A Unified Framework for Bandwidth Extension and Speech Enhancement

ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2023
Accepted to ICASSP ...
Pavel Andreev, Aibek Alanov, Oleg Ivanov, Dmitry P. Vetrov   +3 more
openaire   +2 more sources

Flexible and Wearable Antenna for Biomedical Application: Progress and Opportunity

IEEE Access
In recent years, wearable antenna demand in biomedical applications has increased drastically. Several effective techniques and efficient structures of antenna were proposed to overcome the challenges with respect to the vicinity of the human body.
A. L. Sharon Giftsy, Usha Kiran Kommuri, Ravi Prakash Dwivedi   +2 more
doaj   +1 more source

Attitudes of cancer patients toward ctDNA‐based liquid biopsy for follow‐up

Molecular Oncology, EarlyView.
This mixed‐methods study explored cancer patients' experiences, knowledge, and preferences regarding ctDNA‐based liquid biopsy for follow‐up. Awareness of ctDNA was low and recall of previous liquid biopsy was imperfect, yet acceptance was high.
Siddharth Chhajlani, Laura Mariën, Caro De Weerdt, Sanne Wouters, Laure‐Anne Teuwen, Hans Prenen, Katleen Janssens, Timon Vandamme   +7 more
wiley   +1 more source