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A design of compact dual band 8-element MIMO antenna using folded monopole structures is proposed. The MIMO antenna consists of 8 folded monopole antenna elements, each two of them are symmetrically placed on the orthogonal frame corners of the substrate, and closely located to each other with no clearance on the ground. The folded monopole arms are used as radiation elements to resonate at two different...
Improving the isolation between Multi-input Multi-output (MIMO) antenna elements in a mobile handset is a challenging topic in 5G communication time in order to achieve high data rate. Conventional decoupling methods for MIMO antennas are usually based on changing or neutralizing the interacted current, whereas the concept of controlling electromagnetic fields is seldom considered in the decoupling...
To find out how many antennas can be placed in a limited space and how close and polarizations antennas can be placed, an specialized multiple-input-multiple-output (MIMO) system are used to test different MIMO antennas with different distances and polarizations, throughputs of the MIMO system can be used to evaluate the performances of different MIMO antennas. The results shows that antenna coupling...
The handset MIMO antenna is studied by using an in-house developed MIMO system, which can accommodate up to 8 antennas at both Tx and Rx sides. At first, a group of handsets with different number of antennas are designed and fabricated. The mutual coupling and efficiency of the antennas are measured. Then the handsets are inserted into the MIMO system, the channel matrix and throughput achieved by...
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