Zobrazeno 1 - 10
of 442
pro vyhledávání: '"Wireless"'
Autor:
Ming-An Chung, Chih-Wei Yang
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
A miniaturized internal antenna with monopole structure is constituted, including three radiating strips of a compact prototype and a back-coupling pad to improve the impedance matching, which achieves a wide bandwidth of 2.972 GHz between the operat
Autor:
Mohammed Baz, Mohammad Monirujjaman Khan, Mehedi Masud, Mohammed A. AlZain, H. M. Arifur Rahman
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
This paper presents a novel design for a multiple band millimeter wave antenna with a wide active region in the extremely high frequency (EHF) range. The antenna's performance was tested at three evenly separated frequencies: 60 GHz within the V-band
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
Combined with the classic Chinese window grille structure, this paper proposes and designs a multiband microstrip antenna that can be used in wireless mobile terminal equipment. The antenna radiator adopts a rectangular bending structure with four lo
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
Very low-frequency (VLF) and ultralow-frequency (ULF) electromagnetic waves have the advantage of high penetration and low propagation loss in wireless communication systems and are mainly used for underwater and underground communications, as well a
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
A compact dual-band ram horn-like folded antenna is presented in this work. The antenna is based on a ram horn-like folded strip, asymmetric microstrip feeding (AMF) technique, partial ground, and protruding stub at the ground plane. The dimension of
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
This work presents the design and analysis of a beam switching antenna for VANET, Wi-Fi, and WiMAX wireless communication systems. The proposed reconfigurable antenna is powered by a coaxial cable and consists of a circular patch, six fish-shaped rad
Publikováno v:
Wireless Communications and Mobile Computing, Vol 2021 (2021)
The development of multibeam directional transmission technology used in vehicular ad hoc networks is drawing much more attention in recent years due to its wider coverage ability than omnidirectional transmission. In this paper, we analyse the trans
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
Aiming at low degrees of freedom (DOF) and high mutual coupling (MC) of the existing sparse arrays, an enhanced generalized nested array (EGNA) is proposed in this paper. Specifically, the proposed array adds a single antenna on the basis of generali
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
The bandwidth of a printed rectangular loop antenna with two gaps can be enlarged by using the metallic strips as directors. However, the directivity is not good. Because the two closely spaced metallic strips act as a building block, they can be use
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
The tripolarized MIMO system can provide one more degree of freedom and have a more compacted size over a dual-polarized MIMO system, which is attractive for high-capacity wireless communication systems. In this paper, we analyze and model channel pr