Fresnel zone
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The area required for radio waves to reach the target without power loss in wireless communication, etc. It is a spheroid with two central axes. If there is an obstacle within this area, the strength cannot be ensured. Usually refers to the first Fresnel zone, which contributes greatly to energy transmission. Fresnel zone. Source: About Shogakukan Digital Daijisen Information | Legend |
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無線通信などで、電力損失をすることなく電波が到達するために必要とする領域。二点を中心軸とする回転楕円体となる。この領域内に障害物があると、強度が確保されなくなる。通常、エネルギー伝達に大きく寄与する第一フレネルゾーンを指す。フレネル帯。
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