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The channel capacity characteristics of different multiple input multiple output (MIMO) systems are investigated. Both statistical and deterministic channel models for outdoor and indoor wireless communications are studied. Practical two-element compact monopole arrays with decoupling networks are utilized for the evaluation. For the deterministic model, a ray tracing tool is deployed to track the...
The received signal correlation between different ports of an antenna array can be calculated from the radiation pattern orthogonality. Through the power conservation law, it is possible to estimate the pattern orthogonality coefficient from the scattering parameters for lossless antenna arrays. For lossy antenna arrays, e.g., due to losses in a decoupling network, the scattering parameters are not...
Compact antenna arrays are widely investigated in modern communication technologies. In this paper, a conceptual study of compact monopole arrays used for beamforming applications is performed. Theoretical backgrounds for the design are discussed. A three-element compact monopole array with around 0.2λ0 (λ0 is the wavelength in free space) spacing operating at 2.4 GHz is modeled and simulated. Good...
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