| US 7,579,992 B2 | ||
| Multi-band built-in antenna for independently adjusting resonant frequencies and method for adjusting resonant frequencies | ||
| Byung-Hoon Ryou, Seoul (Korea, Republic of); Won-Mo Sung, Gyeonggi-do (Korea, Republic of); and Jeong-Pyo Kim, Seoul (Korea, Republic of) | ||
| Assigned to E.M.W. Antenna Co., Ltd., Seoul (Korea, Republic of) | ||
| Appl. No. 11/570,769 PCT Filed Jun. 23, 2005, PCT No. PCT/KR2005/001947 § 371(c)(1), (2), (4) Date Dec. 16, 2006, PCT Pub. No. WO2006/001638, PCT Pub. Date Jan. 05, 2006. |
||
| Claims priority of application No. 10-2004-0048671 (KR), filed on Jun. 26, 2004. | ||
| Prior Publication US 2007/0236391 A1, Oct. 11, 2007 | ||
| Int. Cl. H01Q 1/24 (2006.01) | ||
| U.S. Cl. 343—702 [343/700 MS] | 11 Claims |
| 1. A multi-band built-in antenna, comprising:
a main radiating element connected to a ground part and a feed part, the main radiating element being parallel to a ground
plane;
a secondary radiating element arranged parallel to the main radiating element; and
a connecting element connecting the main radiating element and the secondary radiating element, which defines a slit between
the main radiating element and the secondary radiating element,
wherein the secondary radiating element has a length such that the antenna resonates to a first resonant frequency, and the
connecting element has a width such that the antenna resonate to a second resonant frequency.
|