# US 7,742,001 B2 · Two-tier wide band antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,742,001 B2 - Document ID: US7742001B2 - Status: Granted - Kind: B2 - Application number: 12/078,440 - Filed: 2008-03-31 - Published: 2009-10-01 - Granted: 2010-06-22 - Earliest claimed: 2008-03-31 - Assignees: TDK Corporation - Inventors: Denver Humphrey; Brian Kearns; Bee Yen Toh - Web page: https://patentgrep.com/patent/US7742001B2 ## CPC - H01Q 1/2283: {mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package} - H01Q 1/38: formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142)} - H01Q 9/40: Element having extended radiating surface - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A two-tier wideband antenna comprising a chip of a dielectric material with an upper radiating structure and a lower radiating structure, the dielectric chip being mounted on an insulating carrier substrate which includes a feed-line to connect the antenna to a transceiver device. The lower radiating structure comprises two side elements which have a large aspect ratio so as to reduce the frequency of the lower band edge of the frequency response of the antenna when compared with the frequency response of a monopole patch antenna fabricated on a similar dielectric chip. The antenna of the present invention is suitable for operation over an ultra wideband, e.g. a frequency range extending from 3.1 to 10.6 GHz. ## Claims ### Claim 1 An antenna comprising a first radiating structure located substantially in a first plane and having a feed point located substantially at a first end of said radiating structure; a second radiating structure located substantially in a second plane, said first plane being spaced apart from and substantially parallel with said second plane; and a block of dielectric material located substantially between said first and second radiating structures to provide a spacing between said first and second planes, wherein said second radiating structure comprises at least two spaced-apart, elongate radiating elements, each of said at least two radiating elements having a respective first end that is electrically connected to said first radiating structure substantially at a second end of said first radiating structure, said respective first end of said at least two radiating elements being substantially in register with said second end of said first radiating structure. ### Claim 2 (depends on 1) An antenna as claimed in claim 1, wherein said first radiating structure is provided on an obverse face of said dielectric block, and said second radiating structure is provided on a reverse face of said dielectric block. ### Claim 3 (depends on 1) An antenna as claimed in claim 1, wherein at least one of said first and second radiating structures is embedded in said dielectric block. ### Claim 4 (depends on 1) An antenna as claimed in claim 1, wherein said at least two radiating elements are substantially parallely disposed with respect to one another. ### Claim 5 (depends on 4) An antenna as claimed in claim 4, wherein said at least two radiating elements extend substantially parallely with a central axis of said first radiating structure, said central axis passing through said first and second ends of the first radiating structure. ### Claim 6 (depends on 1) An antenna as claimed in claim 1, wherein said at least two radiating elements extend from their respective first end is a direction substantially towards said first end of the first radiating structure. ### Claim 7 (depends on 1) An antenna as claimed in claim 1, wherein said at least two radiating elements extend from their respective first end is a direction substantially away from said first end of the first radiating structure. ### Claim 8 (depends on 1) An antenna as claimed in claim 1, wherein said second radiating structure comprises a centre radiating element extending substantially perpendicularly between said at least two radiating elements. ### Claim 9 (depends on 8) An antenna as claimed in claim 8, wherein said centre radiating element is located substantially in register with said second end of said first radiating structure. ### Claim 10 (depends on 1) An antenna as claimed in claim 1, wherein said at least two radiating elements are substantially symmetrically arranged about a central axis running between said first and second ends of said first radiating structure. ### Claim 11 (depends on 1) An antenna as claimed in claim 1, wherein said first radiating structure comprises a substantially planar patch of electrically conductive material. ### Claim 12 (depends on 1) An antenna as claimed in claim 1, wherein said first and second radiating structures are electrically connected by at least two spaced apart electrically conductive connectors. ### Claim 13 (depends on 12) An antenna as claimed in claim 12, wherein a respective electrically conductive connector connects each of said at least two radiating elements to said first radiating structure. ### Claim 14 (depends on 13) An antenna as claimed in claim 13, wherein said respective electrically conductive connectors are located substantially at an end of a respective one of said at least two radiating elements. ### Claim 15 (depends on 14) An antenna as claimed in claim 14, wherein said respective electrically conductive connectors are substantially coplanar with a respective edge of a respective one of said at least two radiating elements. ### Claim 16 (depends on 12) An antenna as claimed in claim 12, wherein said respective electrically conductive connectors comprise a respective through hole lined or filled with an electrically conductive material. ### Claim 17 An antenna device comprising a substrate formed from an electrically insulating material; an antenna mounted on said substrate, said antenna comprising a first radiating structure located substantially in a first plane and having a feed point located substantially at a first end of said radiating structure; a second radiating structure located substantially in a second plane, said first plane being spaced apart from and substantially parallel with said second plane; and a block of dielectric material located substantially between said first and second radiating structures to provide a spacing between said first and second planes, wherein said second radiating structure comprises at least two spaced-apart, elongate radiating elements, each of said at least two radiating elements having a respective first end that is electrically connected to said first radiating structure substantially at a second end of said first radiating structure, said respective first end of said at least two radiating elements being substantially in register with said second end of said first radiating structure. ### Claim 18 (depends on 17) An antenna device as claimed in claim 17, wherein said antenna is mounted on said substrate such that said second radiating structure is substantially flush with an obverse face of said substrate. ### Claim 19 (depends on 17) An antenna device as claimed in claim 17, wherein an electrically conductive input/output contact pad is provided on said obverse face of said substrate, the input/output contact pad being substantially in register with and connected to said feed point. ### Claim 20 (depends on 17) An antenna device as claimed in claim 17, wherein a respective electrically conductive contact pad is provided on said obverse face of said substrate for each of said at least two radiating elements, the respective contact pad being substantially in register with and in contact with the respective radiating element. ### Claim 21 (depends on 17) An antenna device as claimed in claim 17, wherein a ground plane is provided on said obverse face of the substrate, spaced apart from said antenna. ### Claim 22 (depends on 21) An antenna device as claimed in claim 21, wherein said ground plane comprises first and second adjacent portions spaced apart to define a gap therebetween, and wherein said signal feeding structure passes through said gap.