| US 7,589,686 B2 | ||
| Small ultra wideband antenna having unidirectional radiation pattern | ||
| Evgeny V. Balzovsky, Tomsk (Russian Federation); Yuri I. Buyanov, Tomsk (Russian Federation); Yong-jin Kim, Seoul (Korea, Republic of); Vladimir I. Koshelev, Tomsk (Russian Federation); Do-Hoon Kwon, Seoul (Korea, Republic of); and Seong-soo Lee, Suwon-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., Suwon-si (Korea, Republic of) | ||
| Filed on Jan. 19, 2006, as Appl. No. 11/334,567. | ||
| Claims priority of application No. 10-2005-0005078 (KR), filed on Jan. 19, 2005; and application No. 10-2005-0101159 (KR), filed on Oct. 26, 2005. | ||
| Prior Publication US 2007/0257851 A1, Nov. 08, 2007 | ||
| Int. Cl. H01Q 21/00 (2006.01) | ||
| U.S. Cl. 343—726 [343/767] | 1 Claim |
| 1. An ultra wideband (UWB) antenna comprising:
a substrate;
a power feeding part which is provided on a surface of the substrate and receives an external electromagnetic energy;
a dipole radiator which is excited by the electromagnetic energy fed through the power feeding part and radiates electromagnetic
waves;
an active loop radiator which makes the electromagnetic waves radiated by the dipole radiator have a unidirectional radiation
pattern by interfering the electromagnetic waves, and
at least one passive loop radiator which is excited by the electromagnetic energy induced by the dipole radiator and the active
loop radiator, and radiates the electromagnetic energy in an omnidirectional pattern,
wherein the power feeding part comprises:
a signal terminal which is provided on the surface of the substrate and receives the electromagnetic energy; and
first and second ground terminals arranged on one and the other sides of the signal terminal, respectively, to form a coplanar
waveguide structure on the surface of the substrate.
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