# US 10,320,077 B2 · Broadband antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,320,077 B2 - Document ID: US10320077B2 - Status: Granted - Kind: B2 - Application number: 15/262,018 - Filed: 2016-09-12 - Published: 2017-07-13 - Granted: 2019-06-11 - Earliest claimed: 2016-01-08 - Assignees: Sercomm Corporation - Applicants: Sercomm Corporation - Inventors: Yi-Lin Chiou - Web page: https://patentgrep.com/patent/US10320077B2 ## CPC - H01Q 5/30: Arrangements for providing operation on different wavebands - H01Q 5/371: Branching current paths - H01Q 9/0414: {in a stacked or folded configuration} - H01Q 9/0421: {with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence)} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A broadband antenna is provided. In the broadband antenna, the first end of a first radiation member is connected to the first end of a second radiation member to form a first commonly-connected end, and the second end of the first radiation member is connected to the second end of the second radiation member to form a second commonly-connected end, wherein the first commonly-connected end has a feed point, the second commonly-connected end is connected to a ground member, and the first radiation member is surrounded by the second radiation member and is spaced apart from the second radiation member by a gap. As a result, the broadband antenna can provide 2 frequency bands, each having ½ wavelength resonant mode in a frequency range less than 1 GHz, without the occurrence of resonant mode degradation. ## Claims ### Claim 1 A broadband antenna, comprising: a ground member; a first radiation member for providing a first resonance path to make the broadband antenna cover a first frequency band; and a second radiation member for providing a second resonance path to make the broadband antenna cover a second frequency band, wherein a first end of the second radiation member is directly connected to a first end of the first radiation member to form a first commonly-connected end, the first commonly-connected end has a feed point directly connected to the first end of the first radiation member and the first end of the second radiation member, a second end of the first radiation member is connected to a second end of the second radiation member to form a second commonly-connected end, and the second commonly-connected end is connected to the ground member, wherein the first radiation member is surrounded by the second radiation member and is spaced apart from the second radiation member by a gap, wherein the gap is located solely on a first plane and a second plane perpendicular to the first plane. ### Claim 2 (depends on 1) The broadband antenna of claim 1, wherein a length of the first resonance path is less than a length of the second resonance path. ### Claim 3 (depends on 1) The broadband antenna of claim 1, wherein the first frequency band is between 869 MHz and 894 MHz. ### Claim 4 (depends on 1) The broadband antenna of claim 1, wherein the second frequency band is between 729 MHz and 756 MHz. ### Claim 5 (depends on 1) The broadband antenna of claim 1, wherein the first radiation member and the second radiation member are conformal. ### Claim 6 (depends on 1) The broadband antenna of claim 1, wherein the first radiation member comprises: a first connecting segment, wherein a first end thereof is connected to the first end of the second radiation member to form the first commonly-connected end; a second connecting segment, wherein a first end thereof is connected to a second end of the first connecting segment; and a third connecting segment, wherein a first end thereof is connected to a third end of the second connecting segment, and a second end of the third connecting segment is connected to the second end of the second radiation member to form the second commonly-connected end. ### Claim 7 (depends on 1) The broadband antenna of claim 1, wherein a first part of the first radiation member and a first part of the second radiation member are located on a first plane, and a rest part of the first radiation member and a rest part of the second radiation member are located on a second plane. ### Claim 8 (depends on 1) The broadband antenna of claim 1, wherein a first part of the first radiation member is and a first part of the second radiation member are located on a first plane to directly connected to the feed point located on the first plane, and a rest part of the first radiation member has three sides located on a second plane to be surrounded by a rest part of the second radiation member on the second plane. ### Claim 9 A broadband antenna, comprising: a ground member; a first radiation member for providing a first resonance path to make the broadband antenna cover a first frequency band; and a second radiation member for providing a second resonance path to make the broadband antenna cover a second frequency band, wherein a first end of the second radiation member is directly connected to a first end of the first radiation member to form a first commonly-connected end, the first commonly-connected end has a feed point directly connected to the first end of the first radiation member and the first end of the second radiation member, a second end of the first radiation member is connected to a second end of the second radiation member to form a second commonly-connected end, and the second commonly-connected end is connected to the ground member, wherein a length of the first resonance path is less than a length of the second resonance path, and the first radiation member is surrounded by the second radiation member, wherein a gap enclosed by the first radiation member and the second radiation member is located solely on a first plane and a second plane perpendicular to the first plane. ### Claim 10 (depends on 9) The broadband antenna of claim 9, wherein the first frequency band is between 869 MHz and 894 MHz. ### Claim 11 (depends on 9) The broadband antenna of claim 9, wherein the second frequency band is between 729 MHz and 756 MHz. ### Claim 12 (depends on 9) The broadband antenna of claim 9, wherein the first radiation member and the second radiation member are conformal. ### Claim 13 (depends on 9) The broadband antenna of claim 9, wherein the first radiation member comprises: a first connecting segment, wherein a first end thereof is connected to the first end of the second radiation member to form the first commonly-connected end; a second connecting segment, wherein a first end thereof is connected to a second end of the first connecting segment; and a third connecting segment, wherein a first end thereof is connected to a third end of the second connecting segment, and a second end of the third connecting segment is connected to the second end of the second radiation member to form the second commonly-connected end. ### Claim 14 (depends on 13) The broadband antenna of claim 13, wherein the second radiation member comprises: a fourth connecting segment, wherein a first end thereof is connected to the first end of the first connecting segment; a fifth connecting segment, wherein a first end thereof is connected to a second end of the fourth connecting segment; and a sixth connecting segment, wherein a first end thereof is connected to a second end of the fifth connecting segment, a second end of the sixth connecting segment is connected to the second end of the third connecting segment, the second connecting segment and the fifth connecting segment are located on a first plane, the first connecting segment, the third connecting segment, the fourth connecting segment, and the sixth connecting segment are located on a second plane, and an angle is between the first plane and the second plane. ### Claim 15 (depends on 14) The broadband antenna of claim 14, wherein the second connecting segment and the fifth connecting segment are U-shaped connecting segments. ### Claim 16 (depends on 14) The broadband antenna of claim 14, wherein the ground member is parallel to the first plane. ### Claim 17 (depends on 9) The broadband antenna of claim 9, wherein a first part of the first radiation member and a first part of the second radiation member are located on a first plane, and a rest part of the first radiation member and a rest part of the second radiation member are located on a second plane. ### Claim 18 (depends on 9) The broadband antenna of claim 9, wherein a first part of the first radiation member and a first part of the second radiation member are located on a first plane to directly connected to the feed point located on the first plane, and a rest part of the first radiation member has three sides located on a second plane to be surrounded by a rest part of the second radiation member on the second plane.