Results 91 to 100 of about 313,766 (176)
Low‐Cost 2‐D Multibeam Transmitarray With Enhanced Beam Coverage Using Sliding Effective Aperture
IET Microwaves, Antennas & PropagationTo address the spectrum shortage in fifth‐generation (5G) and future communication systems, multibeam antenna is a hotspot in recent years. 2‐D multibeam antennas usually have limited coverage range and with high dielectric loss and cost.
Mengyuan Wang +6 more
doaj +1 more source
Multibeam antenna for an intelligent base station. [PDF]
, 1998 by Fu Kar Kit.Thesis (M.Phil.)--Chinese University of Hong Kong, 1998.Includes bibliographical references (leaves 158-160).Abstract also in Chinese.Chapter Chapter 1: --- Introduction --- p.1Chapter Chapter 2: --- Background and Theories --- p.3Chapter
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Multibeam Antenna for Telecommunications Networks Using Cylindrical EBG Structure
, 2009 International audienceWe present in this letter the study of a multibeam antenna for telecommunication networks by using cylindrical electromagnetic band-gap (EBG) structures. The EBG structure behaves as a partially reflecting surface (PRS) and enhances
Chreim, Hassan +5 more
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SensorsMetasurfaces (MSs) have been an effective method for the manipulation of electromagnetic (EM) radiation. However, this research mainly focused on controlling single-directional radiation. In this paper, a Fabry–Perot cavity (FPC) antenna based on the MSs
Yanfei Ren +7 more
doaj +1 more source
Multibeam printed antenna arrays
Electronics Letters, 1993 The design and realisation of two new types of microwave printed antenna array, which exhibit unusual radiation diagrams are described. Some ideas concerning the association of radiating elements into blocks are developed in order to synthesise important radiation functions: creation of multibeam patterns, reduction of the secondary lobe levels ...
E. Motta Cruz, J.P. Daniel
openaire +1 more source
A Reconfigurable Ultra-Wideband (UWB) Antenna with Single Band-Rejection [PDF]
, 2018 In this paper, a reconfigurable ultra-wideband (UWB) antenna with WLAN band-rejection is presented. The proposed antenna operates in the ultra-wideband frequency band from 2.99 – 10.82 GHz with band- rejection of 5.00 – 5.85 GHz.
Ali, M.T.; Antenna Research Group (ARG), Faculty of Electrical Engineering (FKE), Universiti Teknologi MARA (UiTM), Shah Alam, Selangor, 40450, Malaysia. +3 more
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Reconfigurable Multi-Beam Dual-Band Antenna based on Vee Dipoles
Advanced Electromagnetics, 2018 This paper presents a novel antenna configuration to support reconfigurable multi-beam feature with dual-band capability. The proposed design uses four double Vee dipoles with their arms printed on either sides of a substrate and fed through a single ...
L. Snehalatha +2 more
doaj +1 more source
Challenges in the Multibeam Antennas
, 2017 In this project, we are trying to shed light on various aspects of the antenna arrays. Special focus is on solving the problems related to multibeam antennas. One traditional application of the multibeam antennas is sum and difference patterns. Wireless communication systems are demanding multibeam and multiband antennas.
openaire +2 more sources
Design of multibeam antenna for wireless local area network applications [PDF]
, 2007 The current trend in most access point in conventional wireless local area network (WLAN) is to use omnidirectional antennas, which radiates and receives power equally in all directions.
Ibrahim, Siti Zuraidah
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MAC layer performance with steerable multibeam antenna arrays
, 1998 We are concerned with the performance at the media access control (MAC) layer of the protocol stack when multibeam adaptive antenna arrays are employed at the base station site.
Rao, R. R., Chockalingam, A.
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