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[16] ITU-R. Prediction of clutter loss: recommendation ITU-R P.2108-0[R](2017).

[17] ITU-R. Effects of building materials and structures on radiowave propagation above about 100 MHz: recommendation ITU-R P.2040-1[R](2015).

[18] Li H, Xue B, Yang Y K. The technology of measuring and testing phased array antennas[J]. China Measurement Technology, 29, 10-12, 14(2003).

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[21] ITU-R. Propagation data required for the design of terrestrial free-space optical links: recommendation ITU-R P.1817-1[R](2012).

[22] ITU-R. Characteristics of terrestrial IMT-Advanced systems for frequency sharing/interference analyses: recommendation ITU-R M.2292-0[R](2014).

[23] ITU-R. Reference radiation patterns of omnidirectional, sectoral and other antennas for the fixed and mobile services for use in sharing studies in the frequency range from 400 MHz to about 70 GHz: recommendation ITU-R F.1336-5[R](2019).

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