# US 12,218,411 B2 · 5G ultra-wideband monopole antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,218,411 B2 - Document ID: US12218411B2 - Status: Granted - Kind: B2 - Application number: 18/641,271 - Filed: 2024-04-19 - Published: 2024-08-15 - Granted: 2025-02-04 - Earliest claimed: 2020-07-03 - Assignees: Airgain Incorporated - Applicants: Airgain, Inc. - Inventors: Daniel Wang - Web page: https://patentgrep.com/patent/US12218411B2 ## CPC - H01Q 1/246: {specially adapted for base stations} - 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 5/25: Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems - H01Q 5/307: Individual or coupled radiating elements, each element being fed in an unspecified way - H01Q 9/40: Element having extended radiating surface - H01Q 9/42: with folded element, the folded parts being spaced apart a small fraction of the operating wavelength - H01Q 1/007: {specially adapted for indoor communication} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract An ultra-wideband monopole antenna for 5G application is disclosed comprising a first quarter wavelength conductor and a second quarter wavelength conductor, for transmitting and/or receiving electromagnetic waves. A flat portion of the first quarter wavelength conductor and a flat portion of the second quarter wavelength conductor are preferably arranged and located perpendicular and intersecting to each other. Two curved wings of the first quarter wavelength conductor and two curved wings of the second quarter wavelength conductor are preferably arranged and located concentrically and having a same center. The first and second quarter wavelength conductors are joined to deliver ultra wideband frequency in the range of 600-960 MHz and 1710-6000 MHz. ## Claims ### Claim 1 An ultra-wideband monopole antenna comprising: a base; a first quarter wavelength conductor comprising two identical curved wings; and a second quarter wavelength conductor comprising two identical curved wings; wherein the first quarter wavelength conductor and the second quarter wavelength conductor delivers 600-960 MHz and 1710-6000 MHz operating frequency bandwidth; wherein the first quarter wavelength conductor further comprises a first flat portion having a height ranging from 70 mm to 85 mm, and the second quarter wavelength conductor further comprises a second flat portion having a height ranging from 50 mm to 65 mm, a length of each of the two curved wings of the first quarter wavelength conductor range from 55 mm to 65 mm, and a length of each of the two curved wings of the second quarter wavelength conductor range from 35 mm to 45 mm. ### Claim 2 (depends on 1) The ultra-wideband monopole antenna of claim 1 wherein a radius of the two curved wings of the first quarter wavelength conductor ranges from 10 mm to 15 mm, and a radius of the two curved wings of the second quarter wavelength conductor ranges from 10 mm to 15 mm. ### Claim 3 (depends on 1) The ultra-wideband monopole antenna of claim 1 wherein the flat portion of the first and second quarter wavelength conductors is made from FR4 PCB and the two curved wings of each of the first and second quarter wavelength conductors are composed of stainless steel. ### Claim 4 An ultra-wideband monopole antenna comprising: a base; a first quarter wavelength conductor comprising two identical curved wings; and a second quarter wavelength conductor comprising two identical curved wings; wherein the first quarter wavelength conductor and the second quarter wavelength conductor delivers 600-960 MHz and 1710-6000 MHz operating frequency bandwidth; wherein a shape and dimension of the two curved wings of the first quarter wavelength conductor are different than a shape and dimension of the two curved wings of the second quarter wavelength conductor. ### Claim 5 An ultra-wideband monopole antenna comprising: a base; a first quarter wavelength conductor comprising two identical curved wings; and a second quarter wavelength conductor comprising two identical curved wings; wherein the first quarter wavelength conductor and the second quarter wavelength conductor delivers 600-960 MHz and 1710-6000 MHz operating frequency bandwidth; wherein a radius and distance from a center of the two curved wings of the first quarter wavelength conductor are different than a radius and distance from the center of the two curved wings of the second quarter wavelength conductor. ### Claim 6 An ultra-wideband monopole antenna comprising: a base; a first quarter wavelength conductor comprising two identical curved wings; and a second quarter wavelength conductor comprising two identical curved wings; wherein the first quarter wavelength conductor and the second quarter wavelength conductor delivers 600-960 MHz and 1710-6000 MHz operating frequency bandwidth; wherein the two curved wings of the first quarter wavelength conductor and the two curved wings of the second quarter wavelength conductor are not limited to a curving shape as long as the ultra-wideband monopole antenna assembly is within a radius of less than 15 mm. ### Claim 7 (depends on 1) The ultra-wideband monopole antenna of claim 1 wherein the two curved wings from the first quarter wavelength conductor each have a different height as connected onto the flat portion of the first quarter wavelength conductor and the ultra-wideband monopole antenna assembly has a height less 80 mm. ### Claim 8 (depends on 1) The ultra-wideband monopole antenna of claim 1 wherein the two curved wings from the second quarter wavelength conductor each have a different height as connected onto the flat portion of the second quarter wavelength conductor, and the ultra-wideband monopole antenna assembly has a height less 80 mm.