# US 2004/0145522 A1 · Planar multiple band omni radiation pattern antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2004/0145522 A1 - Document ID: US20040145522A1 - Status: Published application - Kind: A1 - Application number: 10/350,027 - Filed: 2003-01-24 - Published: 2004-07-29 - Earliest claimed: 2003-01-24 - Assignees: Input Output Precise Corporation - Inventors: Sen-Lu Wang; Tse-Lun Lee - Web page: https://patentgrep.com/patent/US20040145522A1 ## CPC - H01Q 9/26: with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength (resonant loop antennas H01Q7/00) - 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 21/30: Combinations of separate antenna units operating in different wavebands and connected to a common feeder system - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract The present invention is to provide to a planar multiple band omni radiation pattern antenna having first and second patch lines printed on a planar dielectric substrate material, wherein a plurality of radiation members are formed bifurcately, symmetrically along both sides of a longitudinal axis of either patch line. Each of the radiation members comprises at least two post-shaped conductors each having a length slightly less than one-quarter wavelength of a central frequency of each operating frequency so as to form a choke and the radiation members of multi-frequency, and enable the operating frequencies not to be harmonically related. ## Claims ### Claim 1 A planar multiple band omni radiation pattern antenna comprising: a planar dielectric substrate material; first and second patch lines, wherein the first patch line is printed on a front side of the dielectric substrate material as a signal transmission line and the second patch line is printed on a rear side of the dielectric substrate material at a position corresponding to the first patch line for serving as an extension conductor; and a plurality of radiation members formed bifurcately, symmetrically along both sides of a longitudinal axis of each of the first and the second patch lines, each of the plurality of radiation members including at least two post-shaped conductors. ### Claim 2 (depends on 1) The antenna of claim 1, wherein one end of the first patch line is formed as a signal feed point, two first radiation members at the other end of the first patch line are formed bifurcately, symmetrically along both sides of the longitudinal axis of the first patch line, and each of the first radiation members comprises at least two post-shaped conductors. ### Claim 3 (depends on 2) The antenna of claim 2, wherein at one end of the second patch line corresponding to the signal feed point two second radiation members are formed bifurcately along the longitudinal axis of the second patch line, at the other end of the second patch line two third radiation members are formed bifurcately along the longitudinal axis of the second patch line, the second and the third radiation members are symmetrically disposed on both sides of the second patch line, and each of the second and the third radiation members comprises at least two post-shaped conductors. ### Claim 4 (depends on 3) The antenna of claim 3, wherein each post-shaped conductor on each radiation member is parallel with each patch line and the post-shaped conductors on the third radiation members at the other end of the second patch line are extended in a direction opposite to that of the post-shaped conductors on each of the first and the second radiation members. ### Claim 5 (depends on 2) The antenna of claim 2, wherein on a predetermined position of the first patch line two fourth radiation members are formed bifurcately along the longitudinal axis of the first patch line, the fourth radiation members are symmetrically disposed on both sides of the first patch line, each of the fourth radiation members comprises at least two post-shaped conductors, and each post-shaped conductor on each of the fourth radiation member is parallel with the first patch line and is extended in a direction the same as that of each post-shaped conductor on each radiation member at the other end of the first patch line. ### Claim 6 (depends on 5) The antenna of claim 5, wherein at the second patch line corresponding to the radiation members on the first patch line, two fifth radiation members are formed bifurcately along the longitudinal axis of the second patch line, the fifth radiation members are symmetrically disposed on both sides of the second patch line, each of the fifth radiation members comprises at least two post-shaped conductors, and each post-shaped conductor on each of the fifth radiation members is parallel with the second patch line and is extended in a direction opposite to that of each post-shaped conductor on each corresponding radiation member at the first patch line. ### Claim 7 (depends on 6) The antenna of claim 6, wherein at one end of the second patch line corresponding to the signal feed point two sixth radiation members are formed bifurcately along the longitudinal axis of the second patch line, the sixth radiation members are symmetrically disposed on both sides of the second patch line, each of the sixth radiation members comprises at least two post-shaped conductors, and each post-shaped conductor on each of the sixth radiation member is parallel with the second patch line and is extended in a direction the same as that of each post-shaped conductor on each radiation member at the first patch line. ### Claim 8 (depends on 7) The antenna of claim 7, wherein at one end of the second patch line corresponding to the signal feed point, a ground conductor is formed bifurcately along both sides of the longitudinal axis of the second patch line. ### Claim 9 (depends on 8) The antenna of claim 8, wherein each post-shaped conductor on each radiation member longer than the adjacent post-shaped conductor comprises a projection extended laterally about the longitudinal axis of either patch line to form a side protuberance which is extended over an open end of the adjacent post-shaped conductor. ### Claim 10 (depends on 8) The antenna of claim 8, wherein a length of each post-shaped conductor is slightly less than one-quarter wavelength of a central frequency of each operating frequency. ### Claim 11 (depends on 8) The antenna of claim 8, wherein the dielectric substrate material has a dielectric constant about 3 to 3.5.