scholarly journals Micromachined High Gain Wideband Antennas for Wireless Communications

10.5772/7708 ◽  
2010 ◽  
Author(s):  
Sumanth K. ◽  
Changhai Wang ◽  
Alan J.
Keyword(s):  
Wireless Communications ◽  
High Gain ◽  
Wideband Antennas

scholarly journals ULTRA WIDE BANDWIDTH HIGH GAIN VIVALDI ANTENNA FOR WIRELESS COMMUNICATIONS

2017 ◽  
Vol 69 ◽  
pp. 105-111 ◽  
Author(s):  
Dalia Mohammed Nasha Elsheakh ◽  
Nermeen A. Eltresy ◽  
Esmat Abdallah Abdel Fattah
Keyword(s):  
Wireless Communications ◽  
High Gain ◽  
Wide Bandwidth ◽  
Vivaldi Antenna

scholarly journals A High Gain Omnidirectional Antenna Using Negative Permeability Metamaterial

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Hangfei Tang ◽  
Quanwen Hou ◽  
Yahong Liu ◽  
Xiaopeng Zhao
Keyword(s):  
Wireless Communications ◽  
Dendritic Structure ◽  
High Gain ◽  
Experimental Results ◽  
Negative Permeability ◽  
Zeroth Order ◽  
Omnidirectional Antenna ◽  
Low Profile ◽  
Operating Bandwidth

A high gain omnidirectional antenna with low profile is proposed and is investigated numerically and experimentally. Based on the conventional center-fed circular epsilon-negative (ENG) zeroth-order resonator (ZOR) antenna, dendritic structure negative permeability metamaterial (NPM) is used as the substrate to enhance the gain of the omnidirectional antenna. The experimental results show that the gain of a center-fed circular ENG ZOR antenna with NPM substrate is enhanced about 2.2 dB, and the efficiency is enhanced about 38%, in the whole broad operating bandwidth as compared to that of the antenna without NPM substrate, which can be used to improve the reliability of wireless communications.

scholarly journals A Review of Antenna Array Technologies for Point-to-Point and Point-to-Multipoint Wireless Communications at Millimeter-Wave Frequencies

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
G. Federico ◽  
D. Caratelli ◽  
G. Theis ◽  
A. B. Smolders
Keyword(s):  
Wireless Communications ◽  
Antenna Array ◽  
Antenna Arrays ◽  
Communication Systems ◽  
High Gain ◽  
Multimedia Services ◽  
Ongoing Research ◽  
Array Technology ◽  
Point To Point ◽  
Technical Solutions

With the introduction of 5G communication systems operating in the mm-wave frequency range, new opportunities in terms of multimedia services and applications will become available. For this to happen, several technical challenges from an antenna standpoint need to be addressed. The achievements of high-gain characteristics and agile beamforming with wide-scan capabilities are the main targets of the ongoing research on mm-wave antenna arrays. In this paper, an up-to-date overview of antenna array technology for wireless communications at mm-wave frequencies is given. Particular focus is put on the review of the state-of-the art and most advanced antenna array concepts for point-to-point and point-to-multipoint radio links at said frequencies. Various figures of merit are assessed for a comprehensive analysis and bench marking of the technical solutions investigated in the presented survey.

A High Gain Reconfigurable Frequency Antenna Multiband for Wireless Communications

2020 ◽  
Author(s):  
Ibrahime Hassan Nejdi ◽  
Youssef Rhazi ◽  
Mustapha Ait Lafkih ◽  
Seddik Bri
Keyword(s):  
Wireless Communications ◽  
High Gain
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