Journal
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume 63, Issue 2, Pages 525-533Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2014.2378316
Keywords
Artificial magnetic conductor (AMC); compact volume; good isolation; indoor base station; multiple-input multiple-output (MIMO) system; sixteen elements
Funding
- NSFC [61101066, 51477126, 61401335]
- Huawei Innovation Research Program
- Natural Science Basic Research Plan in Shaanxi Province of China [2014JM8316, 2014JQ8352]
- Fundamental Research Funds for the Central Universities [JB140232]
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Wideband indoor base station antenna (operating at 5.2 /5.8 GHz WLAN and 5.5 GHz WiMAX), loaded with artificial magnetic conductor (AMC), is proposed for multiple-input multiple-output (MIMO) system. The MIMO system has sixteen elements, and each element has a pair of folded dipoles, fed by a coupling E-shape microstrip feedline. Periodical AMC surfaces are introduced underneath the dipole elements to achieve unidirectional radiation and low profile. They also contribute to antenna miniaturization and bandwidth enhancement. The MIMO system has the advantages of wide bandwidth, good isolation, enhanced radiation, and low correlation, all within a compact volume. The MIMO array was fabricated and tested, and the results are in good agreement with those of the simulations.
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