Printed, multi-loop-antenna system integrated into a concurrent, dual-WLAN-band access point

2010 ◽  
Vol 53 (2) ◽  
pp. 317-322 ◽  
Author(s):  
Saou-Wen Su ◽  
Tzi-Chieh Hong
Keyword(s):  
Access Point ◽  
Antenna System ◽  
Loop Antenna

scholarly journals Environmental Sensitivity of Large Stealth Longwave Antenna Systems

2021 ◽  
Vol 13 (19) ◽  
pp. 3946
Author(s):  
Tomasz Aleksander Miś ◽  
Józef Modelski
Keyword(s):  
Environmental Monitoring ◽  
Water Content ◽  
Magnetic Loop ◽  
Antenna System ◽  
Loop Antenna ◽  
Soil Composition ◽  
Environmental Sensitivity ◽  
Good Compliance ◽  
Basic Functions ◽  
Antenna Systems

This article presents an analysis of measurements collected during a six-month-long experimental deployment of a surface-placed horizontal magnetic loop antenna. The changes in the measured parameters of the loop are investigated in relation to the surrounding environment’s composition, temperature and water content. Basic functions describing these changes are formulated. The results are confronted with outcomes from similar experiments from previous years and different locations, showing good compliance. The developed functions and antenna system can be used for environmental monitoring of soil composition and humidity over large areas and volumes, helpful in, for example, flood awareness.

Common Elements Wideband MIMO Antenna System for WiFi/LTE Access-Point Applications

2014 ◽  
Vol 13 ◽  
pp. 1601-1604 ◽  
Author(s):  
Alishir MoradiKordalivand ◽  
Tharek A. Rahman ◽  
Mohsen Khalily
Keyword(s):  
Access Point ◽  
Antenna System ◽  
Common Elements ◽  
Mimo Antenna

Wideband MIMO antenna system with dual polarization for WiFi and LTE applications

2015 ◽  
Vol 8 (3) ◽  
pp. 643-650 ◽  
Author(s):  
Alishir Moradikordalivand ◽  
Chee Yen Leow ◽  
Tharek Abd Rahman ◽  
Sepideh Ebrahimi ◽  
Tien Han Chua
Keyword(s):  
Access Point ◽  
Antenna System ◽  
Common Element ◽  
Special Technique ◽  
Frequency Range ◽  
Dual Polarization ◽  
Mimo Antenna ◽  
Novel Structure ◽  
Operating Frequency Range ◽  
Monopole Antennas

In this paper a wideband multi-input multi-output (MIMO) antenna system for WiFi-LTE wireless access point (WAP) application is proposed. The MIMO antenna system consists of two common element microstrip-fed monopole antennas with dual polarization. Physically closed integration of MIMO antenna elements requires a special technique to increase the isolation between the antennas. A novel structure of parasitic element is introduced to improve the isolation between the antennas. The proposed MIMO antenna system is simulated and optimized using CST Microwave Studio. The designed antenna system is fabricated and measured to verify the simulation results. Reflection coefficient of less than −10 dB and isolation more than 15 dB are achieved in the operating frequency range of 2.3–2.9 GHz which covers WiFi 2.4 GHz and LTE 2.6 GHz bands. The proposed system also provides dual polarization with 10 dB polarization diversity gain and envelope correlation coefficient less than 0.15. Each individual antenna has a gain of 5.1 dB and 68% efficiency.

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