# US 2020/0287291 A1 · Phased array antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0287291 A1 - Document ID: US20200287291A1 - Status: Published application - Kind: A1 - Application number: 16/646,282 - Filed: 2018-09-24 - Published: 2020-09-10 - Earliest claimed: 2017-09-25 - Assignees: Gapwaves AB - Applicants: Gapwaves AB - Inventors: Jian YANG; Thomas EMANUELSSON; Ashraf UZ ZAMAN - Web page: https://patentgrep.com/patent/US20200287291A1 ## CPC - H01Q 21/062: {using dipole aerials; (H01Q21/067, H01Q21/068 take precedence)} - H01Q 21/064: {using horn or slot aerials (slotted waveguides arrays H01Q21/005)} - H01Q 1/523: {between antennas of an array} - H01Q 9/28: Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines (waveguide horns or mouths H01Q13/00; slot antennas H01Q13/00) - H01Q 21/0037: {linear waveguide fed arrays} - H01Q 21/005: {Slotted waveguides arrays} - H01P 1/211: Waffle-iron filters; Corrugated structures - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B) ## Abstract A phased array is disclosed, including: a base layer including a substrate with a plurality of protruding posts, for stopping wave propagation along the base layer, and a printed circuit board (PCB) arranged on the base layer, and including at least one phased array radio frequency (RF) integrated circuit (IC) on a first side of the PCB facing the base layer and the protruding posts. The PCB further includes feeds for transferring of RF signals from the phased array RF IC(s) to an opposite second side of the PCB. A radiating layer, including a plurality of radiating elements for transmitting and/or receiving RF signals from the phased array antenna is also provided, together with a feeding layer for transfer of RF signals, arranged between the feeds of the PCB on the second side and the radiating elements of the radiating layer. ## Claims ### Claim 1 A phased array antenna comprising: a base layer comprising a substrate with a plurality of protruding posts, said posts for stopping wave propagation along said base layer; a printed circuit board (PCB) arranged on said base layer, and comprising at least one phased array radio frequency (RF) integrated circuit (IC) on a first side of the PCB facing the base layer and the protruding posts, the PCB further comprising feeds for transferring of RF signals from the phased array RF IC(s) to an opposite second side of the PCB; a radiating layer, comprising a plurality of radiating elements for transmitting and/or receiving RF signals from the phased array antenna; and a feeding layer for transfer of RF signals, arranged between the feeds of the PCB on the second side and the radiating elements of the radiating layer. ### Claim 2 (depends on 1) The phased array antenna of claim 1, wherein the radiating elements are slot openings extending through the radiating layer. ### Claim 3 (depends on 1) The phased array antenna of claim 1, wherein the radiating elements are bow-tie antennas. ### Claim 4 (depends on 1) The phased array antenna of claim 1, wherein the feeding layer is a gap waveguide layer, comprising gap waveguides for transferring of RF signals between the feeds of the PCB and the radiating elements. ### Claim 5 (depends on 4) The phased array antenna of claim 4, wherein the feeds of the PCB are through holes connected to corresponding openings in the gap waveguide layer, the through holes of the PCB being fed by microstrip lines on the first side of the PCB. ### Claim 6 (depends on 1) The phased array antenna of claim 1, wherein the gap waveguide layer comprises a ridge feeding structure surrounded by protruding posts arranged to stop wave propagation in other directions than along said ridge. ### Claim 7 (depends on 1) The phased array antenna of claim 1, wherein the base layer has an extension sufficient to cover the complete area of the PCB. ### Claim 8 (depends on 1) The phased array antenna of claim 1, wherein the base layer is formed of metal. ### Claim 9 (depends on 1) The phased array antenna of claim 1, wherein the antenna further comprises a filter layer arranged between the PCB and the feed layer. ### Claim 10 (depends on 9) The phased array antenna of claim 9, wherein the filter layer is a second gap waveguide layer forming resonant cavities. ### Claim 11 (depends on 1) The phased array antenna of claim 1, wherein all the layers have essentially the same width and length dimensions. ### Claim 12 (depends on 1) The phased array antenna of claim 1, wherein the base layer is made of metal. ### Claim 13 (depends on 1) The phased array antenna of claim 1, wherein the protruding posts of the base layer have maximum cross-sectional dimensions of less than half a wavelength in air at the operating frequency, and/or wherein the protruding posts are spaced apart by a spacing being smaller than half a wavelength in air at the operating frequency. ### Claim 14 (depends on 1) The phased array antenna of claim 1, wherein the protruding posts of the base layer are arranged in a periodic or quasi-periodic pattern and fixedly connected to the base layer. ### Claim 15 (depends on 1) The phased array antenna of claim 1, wherein the protruding posts of the base layer are connected electrically to each other at their bases at least via said base layer. ### Claim 16 (depends on 1) The phased array antenna of claim 1, wherein at least some of the protruding posts are in mechanical contact with the printed circuit board.