ANTENNA DEVICE AND RADAR DEVICE

• Main Author: OZAWA HISASHI
• Format: Patent
• Language: English; Japanese
• Published: 16.09.2021
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

To provide an antenna device with a simple configuration but with a higher gain over a wider angular range than before.SOLUTION: An antenna device 10B includes at least one antenna element 1a to 1c and a dielectric lens 2B, which is made of a dielectric material having a predetermined dielectric constant and includes a lens body 24 having a first surface 22 and a second surface 25 facing each other. The lens body 24 is formed to refract an incident wave to or from the antenna elements 1a to 1c at an angle that gradually increases as it moves away from an axis A passing through the centers of the surfaces 22 and 25.SELECTED DRAWING: Figure 3 【課題】簡単な構成でありながら、従来よりも広い角度範囲にわたって高い利得を有するアンテナ装置を提供する。【解決手段】アンテナ装置１０Ｂは、少なくとも１つのアンテナ素子１ａ〜１ｃと、所定の誘電率を有する誘電体材料からなり、互いに対向する第１の面２２及び第２の面２５を有するレンズ本体２４を含む誘電体レンズ２Ｂとを備える。レンズ本体２４は、面２２，２５の中心を通る軸Ａから遠ざかるにつれて、アンテナ素子１ａ〜１ｃに対する入射波又はアンテナ素子１ａ〜１ｃからの入射波を次第に大きくなる角度で屈折させるように形成される。【選択図】図３