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Broadband Antenna and Wireless Communication Device Employing Same
| Content Provider | The Lens |
|---|---|
| Abstract | A broadband antenna for a wireless communication device includes a first feeding portion, a second feeding portion, a grounding portion, a low band radiating unit, a high band radiating unit, and a resonating unit. The low band radiating unit is connected to the first feeding portion and establishing a first current path to generate a low band frequency. The high band radiating unit is connected to the second feeding portion and establishing a second current path to generate a first high band frequency. The resonating unit is connected to the grounding portion and establishing a third current path to generate a second high band frequency. The resonating unit resonates with the high band radiating unit to generate a third high band frequency. |
| Related Links | https://www.lens.org/lens/patent/106-875-544-513-679/frontpage |
| Language | English |
| Publisher Date | 2017-01-03 |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Patent |
| Jurisdiction | United States of America |
| Date Applied | 2014-06-17 |
| Agent | Zhigang Ma |
| Applicant | Chiun Mai Communication Systems Inc |
| Application No. | 201414306481 |
| Claim | A broadband antenna, comprising: a first feeding portion; a second feeding portion; a grounding portion; a low band radiating unit connected to the first feeding portion, the low band radiating unit establishing a first current path to generate a low band frequency; a high band radiating unit connected to the second feeding portion and spaced from the low band radiating unit, the high band radiating unit establishing a second current path to generate a first high band frequency; and a resonating unit connected to the grounding portion and spaced apart from the high band radiating unit, the resonating unit establishing a third current path to generate a second high band frequency, and resonate with the high band radiating unit to generate a third high band frequency; wherein the low band radiating unit is a meander monopole antenna, and comprises a plurality of U-shaped radiators, a first connecting strip, and a plurality of second connecting strips; the radiators are positioned in a same plane and are connected in sequence by the second connecting strips; the first connecting strip connects between one of the radiators and the first feeding portion; the first connecting strip and the second connecting strips are positioned in a plane that is substantially perpendicular to the plane in which the radiators are positioned; wherein the high band radiating unit comprises a first radiating portion, a second radiating portion, and a third radiating portion, the first radiating portion is a trapezoidal strip, the second radiating portion substantially perpendicularly extends from the first radiating portion, the third radiating portion substantially perpendicularly extends from an end of the second radiating portion opposite to the first radiating portion; the second radiating portion and the third radiating portion are positioned in a plane that is substantially perpendicular to a plane in which the first radiating portion is positioned; wherein the resonating unit comprises a first resonating arm, a second resonating arm, a third resonating arm, and a fourth resonating arm, the first resonating arm is coplanar with the first radiating portion, the second resonating arm extends from the first resonating arm, the third resonating arm extends from the second resonating arm, the fourth resonating arm extends from the third resonating arm, the second, third and fourth resonating arms are coplanar with the second radiating portion. The broadband antenna of claim 1 , wherein the second feeding portion substantially perpendicularly extends from the first radiating portion opposite to the second radiating portion, and is positioned in a plane that is substantially perpendicular to the plane in which the first radiating portion is positioned. The broadband antenna of claim 1 , wherein the second resonating arm, the third resonating arm, and the fourth resonating arm together define a receiving space to receive the second radiating portion and the third radiating portion. The broadband antenna of claim 3 , wherein the resonating unit further comprises an extending arm substantially perpendicularly extending from one edge of the third resonating arm facing the first radiation portion. The broadband antenna of claim 1 , wherein the fourth resonating arm and a distal end of the third resonating arm together define a receiving space, to receive a distal end of the third radiating portion. The broadband antenna of claim 5 , wherein the resonating unit further comprises a fifth resonating arm and a sixth resonating arm, the fifth resonating arm is L shaped, and extends continuously from the third resonating arm; the sixth resonating arm substantially perpendicularly extends from one end of the fifth resonating arm, and is coplanar with the first resonating arm. The broadband antenna of claim 1 , further comprising an impedance matching circuit and an impedance matching switch structure connected to the first feeding portion, wherein the impedance matching switch structure comprises a main strip and a plurality of grounding strips spaced apart from each other and substantially perpendicularly connected to one edge of the main strip, one of the grounding strips is selected to be grounded. The broadband antenna of claim 1 , wherein the grounding portion and the second feeding portion are coplanar and parallel to each other. A wireless communication device, comprising: a printed circuit board (PCB); a broadband antenna, comprising: a first feeding portion coupled to the PCB; a second feeding portion coupled to the PCB; a grounding portion coupled to the PCB; a low band radiating unit connected to the first feeding portion, the low band radiating unit establishing a first current path to generate a low band frequency; a high band radiating unit connected to the second feeding portion and spaced apart from the low band radiating unit, the high band radiating unit establishing a second current path to generate a first high band frequency; and a resonating unit connected to the grounding portion and spaced apart from the high band radiating unit, the resonating unit establishing a third current path to generate a second high band frequency, and resonate with the high band radiating unit to generate a third high band frequency; wherein the low band radiating unit is a meander monopole antenna, and comprises a plurality of U-shaped radiators, a first connecting strip, and a plurality of second connecting strips; the radiators are positioned in a same plane and are connected in sequence by the second connecting strips; the first connecting strip connects between one of the radiators and the first feeding portion; the first connecting strip and the second connecting strips are positioned in a plane that is substantially perpendicular to the plane in which the radiators are positioned; wherein the high band radiating unit comprises a first radiating portion, a second radiating portion, and a third radiating portion, the first radiating portion is a trapezoidal strip, the second radiating portion substantially perpendicularly extends from the first radiating portion, the third radiating portion substantially perpendicularly extends from an end of the second radiating portion opposite to the first radiating portion; the second radiating portion and the third radiating portion are positioned in a plane that is substantially perpendicular to a plane in which the first radiating portion is positioned; wherein the resonating unit comprises a first resonating arm, a second resonating arm, a third resonating arm, and a fourth resonating arm, the first resonating arm is coplanar with the first radiating portion, the second resonating arm extends from the first resonating arm, the third resonating arm extends from the second resonating arm, the fourth resonating arm extends from the third resonating arm, the second, third and fourth resonating arms are coplanar with the second radiating portion. The wireless communication device of claim 9 , wherein the second feeding portion substantially perpendicularly extends from the first radiating portion opposite to the second radiating portion, and is positioned in a plane that is substantially perpendicular to the plane in which the first radiating portion is positioned. The wireless communication device of claim 9 , wherein the second resonating arm, the third resonating arm, and the fourth resonating arm together define a receiving space to receive the second radiating portion and the third radiating portion. The wireless communication device of claim 11 , wherein the resonating unit further comprises an extending arm substantially perpendicularly extending from one edge of the third resonating arm facing the first radiation portion. The wireless communication device of claim 9 , wherein the fourth resonating arm and a distal end of the third resonating arm together define a receiving space, to receive a distal end of the third radiating portion. The wireless communication device of claim 13 , wherein the resonating unit further comprises a fifth resonating arm and a sixth resonating arm, the fifth resonating arm is L shaped, and extends continuously from the third resonating arm; the sixth resonating arm substantially perpendicularly extends from one end of the fifth resonating arm, and is coplanar with the first resonating arm. The wireless communication device of claim 9 , further comprising an impedance matching switch structure connected to the first feeding portion, wherein the impedance matching switch structure comprises a main strip and a plurality of grounding strips spaced apart from each other and substantially perpendicularly connected to one edge of the main strip, one of the grounding strips is selected to be grounded. The wireless communication device of claim 9 , wherein the grounding portion and the second feeding portion are coplanar and parallel to each other. |
| CPC Classification | Antennas; I.E. Radio Aerials |
| Examiner | Sue A Purvis Amal Patel |
| Extended Family | 067-912-552-144-540 151-517-031-611-929 178-384-014-302-116 106-875-544-513-679 |
| Patent ID | 9537218 |
| Inventor/Author | Lin Yen-hui Liou Geng-hong |
| IPC | H01Q5/00 H01Q1/24 H01Q1/36 H01Q5/371 H01Q5/378 H01Q21/28 |
| Status | Inactive |
| Owner | Chiun Mai Communication Systems Inc |
| Simple Family | 067-912-552-144-540 151-517-031-611-929 178-384-014-302-116 106-875-544-513-679 |
| CPC (with Group) | H01Q5/378 H01Q1/36 H01Q5/371 H01Q21/28 H01Q1/241 |
| Issuing Authority | United States Patent and Trademark Office (USPTO) |
| Kind | Patent/New European patent specification (amended specification after opposition procedure) |
