Compact four-loop-antenna system for concurrent, 2.4- and 5-GHz WLAN operation

2013 ◽  
Vol 56 (1) ◽  
pp. 208-215 ◽  
Author(s):  
Saou-Wen Su
Keyword(s):  
2021 ◽  
Vol 13 (19) ◽  
pp. 3946
Author(s):  
Tomasz Aleksander Miś ◽  
Józef Modelski

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.


2014 ◽  
Vol 13 ◽  
pp. 880-883 ◽  
Author(s):  
Wangwang Han ◽  
Xiaopeng Zhou ◽  
Jun Ouyang ◽  
Yan Li ◽  
Rui Long ◽  
...  

2003 ◽  
Vol 39 (18) ◽  
pp. 1302 ◽  
Author(s):  
Chia-Ching Lin ◽  
Gwo-Yun Lee ◽  
Kin-Lu Wong
Keyword(s):  

2021 ◽  
Vol 35 (11) ◽  
pp. 1314-1315
Author(s):  
Guobo Wei ◽  
Quanyuan Feng

A side-frame dual-band multi-input multi-output (MIMO) antenna system for fifth-generation (5G) mobile communication in smartphone applications is presented, operating in 3.5 GHz band (3400-3600 MHz) and 5 GHz band (4800-5000 MHz). The proposed four-element antenna array is placed at four corners of the circuit board and printed on the side edge frame. The height of the structure is only 4.1 mm, which is compatible for ultra-thin full screen smartphones. According to the verification of HFSS and CST, ideal impedance matching bandwidths (superior to 10dB) and excellent isolations (superior to 18 dB) are obtained over the 3.5 GHz band and 5 GHz band, with peak gain of 6.18 dB and 4.9 dB, respectively.


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