WIRELESS TRANSMISSION SYSTEM

WIPO Patent Application WO/2024/038682

A1

Provided is a wireless transmission system that attains both improvement of radio wave propagation environments and suppression of leakage of radio waves to the outside of a requisite space. The wireless transmission system comprises: a base station that is disposed outdoors or in an environment similar to an outdoor environment, and performs wireless communication in a prescribed frequency band that is 1 GHz to 300 GHz; and an electromagnetic wave reflection apparatus that has a reflection panel for reflecting electromagnetic waves having the abovementioned frequency, and is provided along a prescribed region in the communication area of the base station. A transmission antenna of the base station forms a transmission beam toward the prescribed region such that output electromagnetic waves are incident onto a position on the electromagnetic wave reflection apparatus that is lower than the height of the top of the electromagnetic wave reflection apparatus. The reflection panel is positioned such that the minimum distance from the transmission antenna is within the range of 5.0 m to 300.0 m, and reflects the electromagnetic waves having the abovementioned frequency into the prescribed region. The received power outside the prescribed region is lower than the average or median of the received power in the prescribed region.

KAMBARA KUMIKO (JP)

PCT/JP2023/023717

February 22, 2024

June 27, 2023

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AGC INC (JP)

H01Q15/14; H01Q15/16; H01Q17/00; H05K9/00

WO2021199504A1	2021-10-07
WO2022196338A1	2022-09-22

JP2021175054A

2021-11-01

ITOH, Tadashige et al. (JP)

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