Source: http://www.google.com/patents/US7573424?dq=4484186
Timestamp: 2017-05-23 17:33:42
Document Index: 343771936

Matched Legal Cases: ['art 400', 'art 400', 'art 400', 'art 110', 'art 120', 'art 110', 'art 120', 'art 110']

Patent US7573424 - Dual-band antenna for radiating electromagnetic signals of different frequencies - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA dual-band antenna for radiating electromagnetic signals of different frequencies includes a ground portion (500), a feeding part (400), and a body (100). The feeding part (400) is for feeding signals. The body (100) includes a first radiating part (110) and a second radiating part (120). The first...http://www.google.com/patents/US7573424?utm_source=gb-gplus-sharePatent US7573424 - Dual-band antenna for radiating electromagnetic signals of different frequenciesAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7573424 B2Publication typeGrantApplication numberUS 11/308,575Publication dateAug 11, 2009Filing dateApr 8, 2006Priority dateJun 10, 2005Fee statusPaidAlso published asCN1877909A, CN1877909B, US20070040748Publication number11308575, 308575, US 7573424 B2, US 7573424B2, US-B2-7573424, US7573424 B2, US7573424B2InventorsChia-Hao MeiOriginal AssigneeHon Hai Precision Industry Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (14), Referenced by (6), Classifications (10), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetDual-band antenna for radiating electromagnetic signals of different frequencies
US 7573424 B2Abstract
A dual-band antenna for radiating electromagnetic signals of different frequencies includes a ground portion (500), a feeding part (400), and a body (100). The feeding part (400) is for feeding signals. The body (100) includes a first radiating part (110) and a second radiating part (120). The first radiating part includes a bent portion (115), a first free end (111), and a first connecting end (112). The bent portion (115) is between the first free end (111) and the first connecting end (112). The first connecting end (111) is electronically connected to the feeding part (400). The second radiating part (120) includes a second connecting end (122) and a second free end (121). The second connecting end (122) is connected to the first connecting end (112). The shorting part (200) is between the body (100) and the ground portion (500).
An exemplary embodiment of the invention provides a dual-bend antenna for radiating electromagnetic signals of different frequencies. The dual-band antenna includes a ground portion, a feeding part, and a body. The feeding pan is for feeding signals. The body includes a first radiating part and a second radiating part. The first radiating part includes a bent portion, a first free end, and a first, connecting end. The bent portion is between the first free end and the first connecting end. The first connecting end is electrically connected to the feeding part. The second radiating part includes a second connecting end and a second free end. The second connecting end is connected to the first connecting end. The above-described configuration can effectively reduce the size of the dual-band antenna.
FIG. 1 is a schematic, isometric view of a first exemplary embodiment of a dual-band antenna of the present invention;
FIG. 1 is a schematic, isometric view of a dual-band antenna of a first exemplary embodiment of the present invention. In the first exemplary embodiment, the dual-band antenna is disposed on a substrate 600, and includes a body 100, a supporting conductor 300, a feeding part 400, and two ground portions 500. In another exemplary embodiment, the dual-band antenna may not include the supporting conductor 300. In the first exemplary embodiment the substrate 600 is a Printed Circuit Board (PCB). The feeding part 400 is used for feeding signals. The ground portions 500 are disposed on the substrate 600 on two opposite sides of the feeding part 400 respectively. The body 100 is generally shaped as a polygon, for example, a hexagon, with a gap, and includes a first radiating part 110 and a second radiating part 120. In the first exemplary embodiment, the body 100 is made of metal, and the first radiating part 110 and the second radiating part 120 are formed integrally as a single piece. The first radiating part 110 includes a first free end 111 with a first protrusion defined at a side of the first free end 111, a first connecting end 112, and a bent portion 115. The bent portion 115 is disposed between the first free end 111 and the first connecting end 112. The first protrusion noints toward the bent portion 115. In the first exemplary embodiment, the bent portion 115 is concertinaed. This configuration is also known as a comb-line structure. In the illustrated embodiment, the bent portion 115 is angular; i.e., sharp-cornered. In another exemplary embodiment, the bent portion 115 may be curved, with rounded corners or portions. In still another exemplary embodiment, the bent portion 115 may be both angular and curved; that is, the bent portion 115 may have a combination of angular corners or portions and curved comets or portions.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS6246371 *Apr 1, 1999Jun 12, 2001Allgon AbWide band antenna means incorporating a radiating structure having a band formUS6515629Nov 20, 2001Feb 4, 2003Accton Technology CorporationDual-band inverted-F antennaUS6535170 *Dec 10, 2001Mar 18, 2003Sony CorporationDual band built-in antenna device and mobile wireless terminal equipped therewithUS6600450 *Mar 5, 2002Jul 29, 2003Motorola, Inc.Balanced multi-band antenna systemUS20020070902 *Apr 6, 2001Jun 13, 2002Greg JohnsonSingle or dual band parasitic antenna assemblyUS20040041733 *Aug 22, 2003Mar 4, 2004Filtronic Lk OyAdjustable planar antennaUS20040246180 *Jul 4, 2003Dec 9, 2004Hironori OkadoDielectric antenna, antenna-mounted substrate, and mobile communication machine having them thereinUS20060279464 *Dec 29, 2005Dec 14, 2006Hon Hai Precision Industry Co., Ltd.Dual-band antenna for radiating electromagnetic signals of different frequenciesJP2002158529A Title not availableJP2003188637A Title not availableJP2004147282A Title not availableJP2004247791A Title not availableWO2001045204A1Dec 15, 1999Jun 21, 2001Mitsubishi Denki Kabushiki KaishaImpedance matching circuit and antenna using impedance matching circuitWO2001080355A1Apr 12, 2001Oct 25, 2001Telefonaktiebolaget Lm Ericsson (Publ)A multi-band antenna for use in a portable telecommunication apparatus* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7859466 *Mar 12, 2007Dec 28, 2010Hon Hai Precision Industry Co., Ltd.Dual-band antennaUS8669914 *Apr 28, 2011Mar 11, 2014Realtek Semiconductor Corp.Dual-band antenna and related wireless communication apparatusUS9094057 *Mar 2, 2011Jul 28, 2015Qualcomm IncorporatedParasitic circuit for device protectionUS20080122700 *Mar 12, 2007May 29, 2008Hon Hai Precision Industry Co., Ltd.Dual-band antennaUS20120050015 *Mar 2, 2011Mar 1, 2012Qualcomm IncorporatedParasitic circuit for device protectionUS20120274534 *Apr 28, 2011Nov 1, 2012Bo PanDual-band antenna and related wireless communication apparatus* Cited by examinerClassifications U.S. Classification343/700.0MS, 343/702, 343/846International ClassificationH01Q1/38Cooperative ClassificationH01Q1/38, H01Q5/371, H01Q9/40European ClassificationH01Q5/00K2C4A2, H01Q9/40, H01Q1/38Legal EventsDateCodeEventDescriptionApr 8, 2006ASAssignmentOwner name: HON HAI PRECISION INDUSTRY CO., LTD., TAIWANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MEI, CHIA-HAO;REEL/FRAME:017441/0990Effective date: 20060328Sep 19, 2012FPAYFee paymentYear of fee payment: 4Jan 13, 2017FPAYFee paymentYear of fee payment: 8RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services