Antenna device and wireless communication system
OwnerTakayoshi ITO, Hiroki Shoki +1inventors
InventorsTakayoshi ITO, Hiroki Shoki, Shuichi Obayashi
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Abstract
An antenna device includes a ground plane, an antenna element, and a metal wall. The antenna element is having a distance of (m×λ/2-λ/4) away from the ground plane, where “m” is an integer which is equal or larger than “1” and “λ” is a wave length of operating frequency. The metal wall is surrounding the antenna element. One end of the metal wall is attached to along the ground plane. The other end of the metal wall is forming an aperture with a height from the ground plane. The height of the metal wall is (n×λ/2), where “n” is an integer which is equal or larger than “m”.
Claims7
An antenna device, comprising:
- a ground plane;
- an antenna element having a distance of (m×λ/2-λ/4) away from the ground plane, “m” being an integer which is equal or larger than “1”, “λ” being a wave length of operating frequency;
- and
- a metal wall surrounding the antenna element, one end being attached to along the ground plane, the other end forming an aperture with a height from the ground plane, the height being (n×λ/2) where “n” is an integer which is equal or larger than “m”.
Dependencies are inferred from the claim text.