ELECTRIC WAVE REFLECTION DEVICE, COMMUNICATION SYSTEM, AND SETTING METHOD

• Main Authors: TAKEUCHI KAZUNORI, FUKUHARA TADAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2017
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

PROBLEM TO BE SOLVED: To suppress the interference of electric waves.SOLUTION: An electric wave reflection device 1 includes a plurality of reflection portions 11 that can change the reflectivity of the incident electric waves and reflects the electric waves in different directions, and a control portion 14 that controls the reflectivity of each of the reflection portions 11. The reflection portion 11 includes a first layer that reflects a part of the incident electric waves and allows the other part of the electric waves to pass through, and a second layer that reflects the electric waves having passed through the first layer and can change the phase of the reflected electric waves. The control portion 14 controls the reflectivity of the reflection portion 11 by changing the phase difference between a first reflection wave corresponding to the electric waves reflected on the first layer and a second reflection wave corresponding to the electric waves reflected on the second layer.SELECTED DRAWING: Figure 1 【課題】電波の干渉を抑制する。【解決手段】電波反射装置１は、入射する電波の反射率を変更可能であり、当該電波をそれぞれ異なる方向に反射する複数の反射部１１と、複数の反射部１１のそれぞれの反射率を制御する制御部１４とを備える。反射部１１は、入射する電波の一部を反射するとともに、当該電波の他の一部を透過させる第１層と、第１層を透過した当該電波を反射するとともに、反射した電波の位相を変更可能な第２層とを有し、制御部１４は、第１層で反射した電波である第１反射波と、第２層で反射した電波である第２反射波の位相差を変化させることにより、反射部１１の反射率を制御する。【選択図】図１