Source: http://www.google.com/patents/US7358900?dq=5537618&ei=urENT6-uEoHegQe698i5Bw
Timestamp: 2017-08-24 09:28:09
Document Index: 594496004

Matched Legal Cases: ['art 11', 'art 10', 'art 11', 'art 10', 'art 11', 'art 11', 'art 11', 'art 111', 'art 10', 'art 111', 'art 10', 'art 111', 'art 111', 'art 112', 'art 10', 'art 112', 'art 10', 'art 112', 'art 112', 'art 113', 'art 10', 'art 113', 'art 10', 'art 113', 'art 113', 'art 10']

Patent US7358900 - Symmetric-slot monopole antenna - Google Patents
A symmetric-slot monopole antenna is provided, including a metallic board. Formed on the metallic board are a ground connection part to provide a ground circuit for the monopole antenna and a radiation part formed integrally on the ground connection part to receive and radiate signals transmitted through...http://www.google.com/patents/US7358900?utm_source=gb-gplus-sharePatent US7358900 - Symmetric-slot monopole antenna
Publication number US7358900 B2
Application number US 11/225,182
Also published as US20070057846
Publication number 11225182, 225182, US 7358900 B2, US 7358900B2, US-B2-7358900, US7358900 B2, US7358900B2
Inventors Jia-Jiu Song, Jr-Ren Jeng
Original Assignee Smartant Telecom.Co., Ltd.
Symmetric-slot monopole antenna
US 7358900 B2
3. The symmetric-slot monopole antenna according to claim 1, wherein the radiation part is of a length of ¼ λ (wavelength).
6. The symmetric-slot monopole antenna according to claim 1, wherein the radiation part is in the shape of a “T.”
The radiation part is formed integrally with the ground connection part and has a signal feeding hole connected to the signal terminal of the signal cable. The radiation part is formed perpendicular to the plane of the ground connection part to receive and radiate signals and the length of the radiation part is ¼ λ(wavelength). Further, the radiation part may be connected to the ground connection part by means of welding (i.e., non-integral structure).
More than one radiation part is formed integrally on the ground connection part, wherein each radiation part has a signal-feeding hole connected to the signal terminal of the signal cable. The radiation parts are formed perpendicular to the plane of the ground connection part to receive and radiate signals, with the length of each radiation part being ¼ λ(wavelength). Further, each radiation part may be formed on the ground connection part by means of welding (i.e., a non-integral structure).
The radiation part 11 is formed integrally with the ground connection part at the end of the long narrow slot 10 a and may be folded up to a position approximately perpendicular to the plane of the ground conncetion part 10 as shown in FIG. 1 B to receive and radiate signals. When the radiation part 11 is not folded up, each of its two sides is separated from the ground connection part 10 by a distance d, with the length of the radiation part 11 being ¼ λ (wave-length). The radiation part 11 has a signal-feeding hole 11 a to provide a connection between the symmetric-slot monopole antenna 50 and the signal terminal 20 b of the signal cable 20 to receive signals. Further, the radiation part 11 may be of a narrow strip shape or any other geometric shape, and may be further folded to reduce the size of the symmetric-slot monopole antenna 50.
The first radiation part 111 is formed integrally with the ground connection part 10 and connected to the end of the first slot 101. The first radiation part 111 corresponds to an impedance matching hole 121 and may be folded up to a position approximately perpendicular to the plane of the ground connection part 10 to receive and radiate signals. The first radiation part 111 is of a length of ¼ λ (wave-length), and has a signal feeding hole 111 a to provide a connection between the symmetric-slot monopole antenna 60 and the signal terminal 20 b of the signal cable 20 to receive signals. Further, the first radiation part 111 may be in a shape of a strip or any other geometric shape, and may even be folded, which reduces the size of the symmetric-slot monopolo antenna 60.
The second radiation part 112 is formed integrally with the ground connection part 10 and connected to the end of the second long narrow slot 102, and corresponds to the impedance matching slot 122. The second radiation part 112 may be folded up in a position approximately perpendicular to the plane of the ground connection part 10 to receive and radiate the signals. The length of the second radiation part 112 is ¼ λ (wavelength), and has a signal feeding hole 112 a to provide a connection between the signal terminal 20 b of the signal cable 20 and the symmetric-slot monopole antenna 60 to receive signals. Further, the second radiation part 112 may be in the shape of a strip or any other geometric shape, and may even be folded, which may reduce the size of the symmetric-slot monopole antenna 60.
The third radiation part 113 is formed integrally with the ground connection part 10 and connected to the end of the third long narrow slot 103, and corresponds to the impedance matching slot 123. The third radiation part 113 may be folded up to a position approximately perpendicular to the plane of the ground connection part 10 to receive and radiate signals. The third radiation part 113 is of a length of ¼ λ (wavelength), and has a signal feeding hole to provide a connection between the signal terminal 20 b of the signal cable 20 and the symmetric-slot monopole antenna 60 to receive signals. Further, the third radiation part 113 may be in the shape of a strip or any other geometric shape, and may even be folded, which may reduce the size of the symmetric-slot monopole antenna. Each of the radiation parts may be formed on the ground connection part 10 by means of welding (i.e., non-integral structure), which will not effect the radiation pattern of the monopole antenna.
Further, the number of radiation parts in the second exemplary embodiment may be increased to four as shown in FIG. 2. The radiation part may be designed to be in the shape of a “T” as shown in FIG. 2C. Multiple symmetric-slot monopole antenna 50 according to the first exemplary embodiment of the present invention may be arranged in a row or a column as shown in FIG. 2D to form an MIMO (multi-input multi-output) antenna.
US5532707 * Feb 1, 1994 Jul 2, 1996 Kathrein-Werke Kg Directional antenna, in particular dipole antenna
US6411261 * Apr 27, 2001 Jun 25, 2002 E-Tenna Corporation Artificial magnetic conductor system and method for manufacturing
US7053855 * Dec 30, 2003 May 30, 2006 Z-Com, Inc. Structure of 3D inverted F-antenna
US20040008146 * Oct 24, 2002 Jan 15, 2004 Morihiko Ikegaya Plate-like multiple antenna and electrical equipment provided therewith
Cooperative Classification H01Q9/36, H01Q9/30, H01Q21/28
European Classification H01Q21/28, H01Q9/30, H01Q9/36
Owner name: SMARTANT TELECOM CO., LTD., TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SONG, JIA-JIU;JENG, JR-REN;REEL/FRAME:016982/0425