Antenna apparatus
View Patent ↗An antenna apparatus that includes a first antenna having a first feed point, a second antenna having a second feed point, and a first non-feed element grounded at a first ground point disposed at a first predetermined distance from the first feed point and the second feed point.
1. An antenna apparatus comprising:
an approximately rectangular board;
a first antenna disposed in proximity a first edge of the board and having a first feed point;
a second antenna disposed in proximity to a second edge of the board, which is opposite to the first edge of the board and having a second feed point; and
a non-feed element grounded at a ground point disposed in proximity to the second feed point, the non-feed element including
a first portion including a first end connected to the ground point and extending in parallel along a third edge of the board; and
a second portion having a length substantially similar to the first portion and extending in parallel with the first portion, the second portion including a first end connected to a second end of the first portion and a second end located closer to the second feed point than the first feed point.
2. The antenna apparatus of claim 1 , wherein
the first feed point is located in proximity to a fourth edge of the board and the second feed point is located in proximity to the third edge of the board.
3. The antenna apparatus of claim 2 , wherein
the third edge of the board opposes the fourth edge of the board.
4. The antenna apparatus of claim 1 , wherein
the length of the first and second portions of the non-feed element is approximately 55 mm.
5. The antenna apparatus of claim 1 , wherein
the ground point is located approximately 27 mm from a center of the non-feed element.
6. The antenna apparatus of claim 1 , wherein
the ground point is located approximately 37 mm from a center of the non-feed element.
7. The antenna apparatus of claim 1 , further comprising:
a second non-feed element grounded at a second ground point disposed in proximity to the first second feed point.
8. The antenna apparatus of claim 7 , wherein the second non-feed element comprises:
a first portion including a first end connected to the second ground point and extending in parallel along a fourth edge of the board; and
a second portion having a length substantially similar to the first portion and extending in parallel with the first portion, the second portion including a first end connected to a second end of the first portion and a second end located closer to the first feed point than the second feed point.
9. An antenna apparatus comprising:
an approximately rectangular board;
a first antenna disposed in proximity a first edge of the board and having a first feed point;
a second antenna disposed in proximity to a second edge of the board, which is opposite to the first edge of the board and having a second feed point; and
a non-feed element grounded at a ground point disposed in proximity to the first feed point, the non-feed element including
a first portion including a first end connected to the ground point and extending in parallel along a third edge of the board; and
a second portion having a length substantially similar to the first portion and extending in parallel with the first portion, the second portion including a first end connected to a second end of the first portion and a second end located closer to the first feed point than the second feed point.
10. The antenna apparatus of claim 9 , wherein
the first feed point is located in proximity to the third edge of the board and the second feed point is located in proximity to a fourth edge of the board.
11. The antenna apparatus of claim 10 , wherein
the third edge of the board opposes the fourth edge of the board.
12. The antenna apparatus of claim 9 , wherein
the length of the first and second portions of the non-feed element is approximately 55 mm.
13. The antenna apparatus of claim 9 , wherein
the ground point is located approximately 27 mm from a center of the non-feed element.
14. The antenna apparatus of claim 9 , wherein
the ground point is located approximately 37 mm from a center of the non-feed element.
15. The antenna apparatus of claim 9 , further comprising:
a second non-feed element grounded at a second ground point disposed in proximity to the second feed point.
16. The antenna apparatus of claim 15 , wherein the second non-feed element comprises:
a first portion including a first end connected to the second ground point and extending in parallel along a fourth edge of the board; and
a second portion having a length substantially similar to the first portion and extending in parallel with the first portion, the second portion including a first end connected to a second end of the first portion and a second end located closer to the second feed point than the first feed point.