# US 2021/0280986 A1 · Antenna and Array Antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0280986 A1 - Document ID: US20210280986A1 - Status: Published application - Kind: A1 - Application number: 17/330,768 - Filed: 2021-05-26 - Published: 2021-09-09 - Earliest claimed: 2018-11-27 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: He Cui; Weihong Xiao; Guoqing Xie; Yuequn Zhou - Web page: https://patentgrep.com/patent/US20210280986A1 ## CPC - H01Q 1/246: {specially adapted for base stations} - H01Q 21/062: {using dipole aerials; (H01Q21/067, H01Q21/068 take precedence)} - H01Q 5/20: characterised by the operating wavebands - H01Q 5/40: Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements - H01Q 21/08: the units being spaced along or adjacent to a rectilinear path {(waveguide fed H01Q21/0037)} - H01Q 21/28: Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)} - H01Q 21/26: Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract This application provides an antenna and an array antenna. The antenna in this application includes a first radiating element and a second radiating element, where four dipoles enclose to form the first radiating element, and the second radiating element is a radiating element disposed on an inner side of the first radiating element. The first radiating element is configured to support a transmit frequency band, and the second radiating element is configured to support a receive frequency band; or the first radiating element is configured to support a receive frequency band, and the second radiating element is configured to support a transmit frequency band. ## Claims ### Claim 1 An antenna, comprising: a first radiating element and a second radiating element, wherein the first radiating element comprises four dipoles enclosing the second radiating element in a plan view, and the second radiating element is disposed on an inner side of the first radiating element; and wherein the first radiating element is configured to support a transmit frequency band, and the second radiating element is configured to support a receive frequency band; or the first radiating element is configured to support the receive frequency band, and the second radiating element is configured to support the transmit frequency band. ### Claim 2 (depends on 1) The antenna according to claim 1, further comprising a third radiating element, wherein the third radiating element is disposed on an outer side of the first radiating element; and wherein the first radiating element is configured to support a first transmit frequency band and a second transmit frequency band, the second radiating element and the third radiating element each are configured to support either of a first receive frequency band or a second receive frequency band, and wherein the second radiating element and the third radiating element support different frequency bands. ### Claim 3 (depends on 2) The antenna according to claim 2, wherein the first transmit frequency band is 1805-1880 MHz, the second transmit frequency band is 2110-2170 MHz, the first receive frequency band is 1710-1785 MHz, and the second receive frequency band is 1920-1980 MHz. ### Claim 4 (depends on 1) The antenna according to claim 1, further comprising a third radiating element, wherein the third radiating element is disposed on an outer side of the first radiating element; and wherein the first radiating element is configured to support a first receive frequency band and a second receive frequency band, and the second radiating element and the third radiating element each are configured to support either of a first transmit frequency band or a second transmit frequency band, and wherein the second radiating element and the third radiating element support different frequency bands. ### Claim 5 (depends on 4) The antenna according to claim 4, wherein the first transmit frequency band is 1805-1880 MHz, the second transmit frequency band is 2110-2170 MHz, the first receive frequency band is 1710-1785 MHz, and the second receive frequency band is 1920-1980 MHz. ### Claim 6 (depends on 1) The antenna according to claim 1, wherein the transmit frequency band is 1805-1880 MHz, and the receive frequency band is 1710-1785 MHz. ### Claim 7 (depends on 1) The antenna according to claim 1, wherein the first radiating element is configured to support the transmit frequency band, and the second radiating element is configured to support the receive frequency band. ### Claim 8 (depends on 1) The antenna according to claim 1, wherein the first radiating element is configured to support the receive frequency band, and the second radiating element is configured to support the transmit frequency band. ### Claim 9 An array antenna, comprising a plurality of antennas, wherein each antenna of the plurality of antennas respectively comprises: a first radiating element and a second radiating element, wherein the first radiating element comprises four dipoles enclosing the second radiating element in a plan view, and the second radiating element is disposed on an inner side of the first radiating element; and wherein, for each antenna of the plurality of antennas, the first radiating element of the respective antenna is configured to support a transmit frequency band, and the second radiating element of the respective antenna is configured to support a receive frequency band; or the first radiating element of the respective antenna is configured to support the receive frequency band, and the second radiating element of the respective antenna is configured to support the transmit frequency band. ### Claim 10 (depends on 9) The array antenna according to claim 9, wherein antennas of the plurality of antennas are arranged into a row or a column to form a linear array. ### Claim 11 (depends on 9) The array antenna according to claim 9, wherein antennas of the plurality of antennas are arranged into square arrays. ### Claim 12 (depends on 9) The array antenna according to claim 9, wherein a range of a distance between two adjacent first radiating elements is 0.4λ to 0.6λ, and a represents a wavelength corresponding to a frequency band supported by the first radiating elements. ### Claim 13 (depends on 9) The array antenna according to claim 9, wherein antennas of the plurality of antennas are arranged according to a preset deployment scheme. ### Claim 14 (depends on 9) The array antenna according to claim 9, wherein each antenna of the plurality of antennas further comprises a third radiating element, wherein each third radiating element is disposed on an outer side of the respective corresponding first radiating element; and wherein each first radiating element is configured to support a first transmit frequency band and a second transmit frequency band, and each second radiating element and each third radiating element are configured to support either of a first receive frequency band or a second receive frequency band, and wherein the second radiating elements and the third radiating elements support different frequency bands. ### Claim 15 (depends on 14) The array antenna according to claim 14, wherein the first transmit frequency band is 1805-1880 MHz, the second transmit frequency band is 2110-2170 MHz, the first receive frequency band is 1710-1785 MHz, and the second receive frequency band is 1920-1980 MHz. ### Claim 16 (depends on 9) The array antenna according to claim 9, wherein each antenna of the plurality of antennas further comprises a third radiating element, wherein each third radiating element is disposed on an outer side of the respective corresponding first radiating element; and wherein each first radiating element is configured to support a first receive frequency band and a second receive frequency band, and each second radiating element and each third radiating element are configured to support either of a first transmit frequency band or a second transmit frequency band, and wherein the second radiating elements and the third radiating elements support different frequency bands. ### Claim 17 (depends on 16) The array antenna according to claim 16, wherein the first transmit frequency band is 1805-1880 MHz, the second transmit frequency band is 2110-2170 MHz, the first receive frequency band is 1710-1785 MHz, and the second receive frequency band is 1920-1980 MHz. ### Claim 18 (depends on 9) The array antenna according to claim 9, wherein the transmit frequency band is 1805-1880 MHz, and the receive frequency band is 1710-1785 MHz. ### Claim 19 (depends on 9) The array antenna according to claim 9, wherein each first radiating element is configured to support the transmit frequency band, and each second radiating element is configured to support the receive frequency band.