scholarly journals Mutual Coupling Effects on Pattern Diversity Antennas for MIMO Femtocells

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Yue Gao ◽  
Shihua Wang ◽  
Oluyemi Falade ◽  
Xiadong Chen ◽  
Clive Parini ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Channel Capacity ◽  
Indoor Environment ◽  
Mutual Coupling ◽  
Coupling Effects ◽  
Frequency Bands ◽  
Pattern Diversity ◽  
Diversity Antenna

Diversity antennas play an important role in wireless communications. However, mutual coupling between multiple ports of a diversity antenna has significant effects on wireless radio links and channel capacity. In this paper, dual-port pattern diversity antennas for femtocell applications are proposed to cover GSM1800, UMTS, and WLAN frequency bands. The channel capacities of the proposed antennas and two ideal dipoles with different mutual coupling levels are investigated in an indoor environment. The relation between mutual coupling and channel capacity is observed through investigations of these antennas.

A Novel Wideband Pattern Diversity Antenna With a Low profile Based On Metasurface

2021 ◽  
pp. 1-1
Author(s):  
Jianfeng Liu ◽  
Zibin Weng ◽  
Zhi-Qiang Zhang ◽  
Yonghui Qiu ◽  
Yi-Xuan Zhang ◽  
...  
Keyword(s):  
Pattern Diversity ◽  
Low Profile ◽  
Diversity Antenna

scholarly journals Modified MIMO Cube for Enhanced Channel Capacity

2012 ◽  
Vol 2012 ◽  
pp. 1-10
Author(s):  
Lajos Nagy
Keyword(s):  
Frequency Dependence ◽  
Channel Capacity ◽  
Indoor Environment ◽  
Antenna System ◽  
Mimo Antenna ◽  
Simulation Results

This paper deals with the optimization of MIMO antenna elements' position in modified MIMO cube for getting maximal channel capacity in indoor environment. The dependence of the channel capacity on the antenna orientation was analyzed by simulations. We have also examined the effect of the frequency dependence of the antenna system (in case of conjugate matching and nonconjugate matching) for the channel capacity. Based on the simulation results in the created and measured antenna system, the antennas were at a right angle to each other. At the two chosen different structures, we measured the antenna parameters and the channel capacity. In this paper, we present the results of the measurements which clearly confirm our simulations. We will point out the differences between the two antenna structures.

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