Zobrazeno 1 - 10
of 302
pro vyhledávání: '"Jong-Won Yu"'
Publikováno v:
IEEE Access, Vol 12, Pp 78982-78987 (2024)
This paper proposes a new measurement method for mobile antennas, balancing accuracy and efficiency by applying magnetic infinitesimal dipole source reconstruction. It introduces a model of the antenna as magnetic infinitesimal dipoles and derives an
Externí odkaz:
https://doaj.org/article/b8228a26f4a04a53b2096da074854c4b
Publikováno v:
Alexandria Engineering Journal, Vol 69, Iss , Pp 759-770 (2023)
This paper presents a highly efficient phased array calibration system for phase and magnitude error correction. The proposed calibration system is based on far-field scanning of the array antenna under test at factory level. Since the proposed struc
Externí odkaz:
https://doaj.org/article/33ba3ec5aea34ded95378f3aac8de170
Publikováno v:
IEEE Access, Vol 11, Pp 60365-60373 (2023)
This paper presents a compact broadband stepped bow-tie antenna for ambient RF energy harvesting (RFEH). The proposed antenna consists of stepped shapes for wide bandwidth, making it possible to investigate ambient RF energy in entire cellular bands.
Externí odkaz:
https://doaj.org/article/d7c110a328bd43fbae0fce2991465bda
Publikováno v:
IEEE Access, Vol 10, Pp 42750-42761 (2022)
Herein, a robust constant false alarm rate (CFAR) detector with ordered statistic of sub-reference cells (OSS-CFAR) is proposed in multiple target situations. This detector can improve background level estimation and reduce computational complexity u
Externí odkaz:
https://doaj.org/article/9b1ecd3378634dad89177ae516504e38
Publikováno v:
IEEE Access, Vol 10, Pp 93773-93784 (2022)
This paper presents a pattern reconfigurable dual-polarized dipole antenna with staggered parasitic elements operating in 3.5 GHz band. The proposed antenna is designed by assembling two linearly polarized antennas to be orthogonally polarized, and e
Externí odkaz:
https://doaj.org/article/2a8725bd812a41f391afe4a7b5df67ca
Publikováno v:
IEEE Access, Vol 10, Pp 100911-100921 (2022)
On-board data reduction is a major concern in designing of a spaceborne synthetic aperture radar (SAR) system since the volume of acquired SAR data is generally much higher than the downlink capability to the ground-station. The dechirp-on-receive (D
Externí odkaz:
https://doaj.org/article/934a1a71b68d459b9f4112410ef29fcc
Publikováno v:
JOIV: International Journal on Informatics Visualization, Vol 5, Iss 2, Pp 127-133 (2021)
In this paper, we propose the implementation of a safety device that generates an alarm sound or braking operation to reduce the risk of accidents. It reduces the exposure of risks due to non-wearing by supplementing the function of the helmet for sa
Externí odkaz:
https://doaj.org/article/015241ed0d82451f882d2af3f71fa86f
Publikováno v:
IEEE Access, Vol 9, Pp 79927-79935 (2021)
This paper proposes a wideband circularly polarized antenna with a reconfigurable 2-dimensional axial ratio. For mobile satellite communication, the low profile CP antenna with wide axial ratio scanning and a wide frequency bandwidth is essential. In
Externí odkaz:
https://doaj.org/article/2194debf82164aef9d970c142d8811a1
Publikováno v:
IEEE Access, Vol 9, Pp 165385-165393 (2021)
In this paper, a transparent antenna made with a new structure of ITO/Ag/ITO is proposed. Overcoming the physical limitations of transparency and conductivity is an important problem with transparent materials. By studying and comparing previously re
Externí odkaz:
https://doaj.org/article/31611c06cdc74eb7ad848cc235a66b69
Publikováno v:
International Journal of Antennas and Propagation, Vol 2013 (2013)
A balanced-fed dual inverted-F antenna with reduced human body effects for WLAN applications at 2.45 GHz is presented. In order to reduce the influence by a close proximity or a touch of a human body, the proposed antenna employs an impedance matchin
Externí odkaz:
https://doaj.org/article/366081e579f24865a75e7b41fab57796