# US 10,122,076 B2 · Multi-band elementary radiating cell > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,122,076 B2 - Document ID: US10122076B2 - Status: Granted - Kind: B2 - Application number: 15/365,580 - Filed: 2016-11-30 - Published: 2017-06-15 - Granted: 2018-11-06 - Earliest claimed: 2015-12-09 - Assignees: Thales - Applicants: Thales - Inventors: Olivier Maas - Web page: https://patentgrep.com/patent/US10122076B2 ## CPC - 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 1/48: Earthing means; Earth screens; Counterpoises - H01Q 5/50: Feeding or matching arrangements for broad-band or multi-band operation - H01Q 9/0407: {Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40)} - H01Q 13/16: Folded slot antennas - H01Q 21/28: Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)} - 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 A radiating device operating in two distinct frequency bands, a high frequency band and at least one sub-band of a low frequency band, the device comprises: at least one element of patch type adapted to the high frequency band and linked to a first feed, at least one element of folded slot type, adapted to the low frequency band and linked to a second feed different from the first feed, a filter positioned between the element of patch type and the first feed, configured to filter the sub-band of the low frequency band and to be passing for the high frequency band, and wherein the elements of which it consists are positioned in a surface area of less than or equal to a square of edge λ/2, where λ is the wavelength corresponding to the maximum frequency of the high frequency band. ## Claims ### Claim 1 A radiating device operating in two distinct frequency bands, a high frequency band and at least one sub-band of a low frequency band, the said device comprising: at least one element of patch type adapted to the high frequency band and linked to a first feed, at least one element of folded slot type, adapted to the low frequency band and linked to a second feed different from the said first feed, a filter positioned between the said element of patch type and the said first feed, configured to filter the low frequency band and to be passing for the high frequency band, and wherein the elements of which it consists are positioned in a surface area of less than or equal to a square of edge λ/2, where λ is the wavelength corresponding to the maximum frequency of the high frequency band. ### Claim 2 (depends on 1) The radiating device according to claim 1, wherein the element of slot type is accommodated in a ground plane of the device. ### Claim 3 (depends on 1) The radiating device according to claim 1, wherein the element or elements of folded slot type are folded into a U shape and positioned at the periphery of the device. ### Claim 4 (depends on 1) The radiating device according to claim 1, wherein the number of elements of slot type is equal to the number of sub-bands of the low frequency band, the elements of slot type being powered by one and the same second feed. ### Claim 5 (depends on 1) The radiating device according to claim 1, wherein the number of elements of slot type is equal to the number of sub-bands of the low frequency band, the elements of slot type being powered by different feeds. ### Claim 6 (depends on 1) The radiating device according to claim 1, comprising a single element of slot type powered by the second feed to which it is linked by a resonator circuit, the coupling between the slot and the resonator circuit being adjusted to radiate in two distinct sub-bands of the low frequency band. ### Claim 7 (depends on 6) The radiating device according to claim 6, wherein the resonator circuit is a parallel resonator circuit comprising an inductor and a capacitor, the resonator being linked to the element of slot type by a waveguide of length λ/4, where λ is the wavelength associated with the central frequency of the low frequency band. ### Claim 8 (depends on 1) The radiating device according to claim 1, wherein the filter positioned between the element of patch type and the first feed comprises a plurality of segments of microstrip line of different widths. ### Claim 9 (depends on 1) The radiating device according to claim 1, further comprising a low-pass filter positioned between the element or elements of slot type and the said second feed, and configured to filter the high frequency band. ### Claim 10 (depends on 1) The radiating device according to claim 1, further comprising a second element of patch type adapted to the high frequency band, the second element of patch type being disposed above the first element of patch type. ### Claim 11 (depends on 1) The radiating device according to claim 1, implemented in a multilayer printed circuit for which the element of patch type, the element or elements of slot type, and the filter positioned between the element of patch type and the first feed are in different layers of the printed circuit. ### Claim 12 (depends on 11) The radiating device according to claim 11, wherein at least one frequency of the high frequency band is an odd integer multiple of a frequency of the low frequency band. ### Claim 13 (depends on 12) The radiating device according to claim 12, wherein the high frequency band comprises the 2.9 GHz-3.3 GHz band. ### Claim 14 (depends on 1) The radiating device according to claim 1, wherein a sub-band of the low frequency band is centred around a frequency chosen from among the frequency 1030 MHz and the frequency 1090 MHz. ### Claim 15 (depends on 1) The radiating device according to claim 1 produced using printed technology. ### Claim 16 (depends on 1) A radiating array configured to radiate in two distinct frequency bands, comprising radiating devices according to claim 1. ### Claim 17 (depends on 16) Electronic scanning radar configured to operate simultaneously in two different frequency bands, and comprising a radiating array according to claim 16.