# US 9,520,654 B2 · Source for parabolic antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,520,654 B2 - Document ID: US9520654B2 - Status: Granted - Kind: B2 - Application number: 14/897,629 - Filed: 2014-06-16 - Published: 2016-05-19 - Granted: 2016-12-13 - Earliest claimed: 2013-06-17 - Assignees: Zodiac Data Systems - Applicants: Zodiac Data Systems - Inventors: Christophe Melle; David Chaimbault; Fabien Peleau - Web page: https://patentgrep.com/patent/US9520654B2 ## CPC - H01Q 19/17: the primary radiating source comprising two or more radiating elements (H01Q19/15, H01Q25/00 take precedence) - H01Q 5/40: Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements - H01Q 9/285: {Planar dipole (H01Q9/065 takes precedence; patch antenna H01Q9/0407)} - H01Q 13/10: Resonant slot antennas - H01Q 19/13: the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination (H01Q19/15 takes precedence) - H01Q 21/062: {using dipole aerials; (H01Q21/067, H01Q21/068 take precedence)} - H01Q 21/20: the units being spaced along or adjacent to a curvilinear path {(slotted waveguide arrays H01Q21/005; circularly or helically slotted waveguides H01Q21/0062)} - H01Q 21/24: Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)} - H01Q 21/28: Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)} - H01Q 25/02: providing sum and difference patterns (H01Q25/04 takes precedence) - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract The invention relates to a source (S) for a parabolic antenna, comprising: •—a sigma radiating assembly (1S, 1C, 1L) suitable for generating the sigma channel including a sigma radiating element (11) positioned on a main transmission/reception axis (A) of the source (S), and a sigma supply circuit (12) to supply the sigma radiating element (11), and •—a delta radiating assembly (2S, 2C, 2L) suitable for generating the delta channel including eight delta radiating elements (21S, 21C, 21L), arranged around the main transmission/reception axis (S) of the source (S), and a delta supply circuit (22S, 22C, 22L). ## Claims ### Claim 1 source for parabolic antenna, comprising: a sigma radiating assembly adapted to generate the sigma channel comprising a sigma radiating element positioned on a main transmission/reception axis of the source, and a sigma supply circuit for supplying the sigma radiating element, and a delta radiating assembly adapted to generate the delta channel comprising eight delta radiating elements arranged about the main transmission/reception axis of the source, and a delta supply circuit, wherein the delta radiating elements are arranged on a circle centred on the main transmission/reception axis of the source and the delta radiating elements are arranged with angular spacing of 45 degrees between two successive delta elements. ### Claim 2 (depends on 1) The source according to claim 1, wherein the sigma radiating element extends in a plane perpendicular to the main transmission/reception axis of the source. ### Claim 3 (depends on 1) The source according to claim 1, wherein the sigma radiating element comprises a radiating patch and a ground plane having coupling slots, the coupling slots being arranged according to an invariant design by rotation of 90 degrees about the main transmission/reception axis of the source. ### Claim 4 (depends on 1) The source according to claim 1, wherein each delta radiating element comprises a radiating patch connected to the delta supply circuit via a supply point, all the patches and their supply points being arranged according to an invariant design by rotation of 45 degrees about the main transmission/reception axis of the source. ### Claim 5 (depends on 1) The source according to claim 1, wherein the delta radiating elements extend in the same plane perpendicular to the main transmission/reception axis of the source. ### Claim 6 (depends on 5) The source according to claim 5, wherein the delta radiating elements are polarized radially relative to the main transmission/reception axis of the source. ### Claim 7 (depends on 5, 6) The source according to claim 5 or claim 6, wherein each delta radiating element comprises a quarter-wave radiating patch. ### Claim 8 (depends on 5) The source according to claim 5, wherein each delta radiating element comprises a half-wave radiating patch and a parasite patch. ### Claim 9 (depends on 1) The source according to claim 1, wherein the delta radiating elements each extend in a plane parallel to the main transmission/reception axis of the source. ### Claim 10 (depends on 9) The source according to claim 9, wherein the delta radiating elements are polarized tangentially relative to the main transmission/reception axis of the source. ### Claim 11 (depends on 9) The source according to claim 9, wherein each delta radiating element comprises a half-wave dipole. ### Claim 12 (depends on 1) The source according claim 1, wherein the delta radiating elements comprise two groups of four delta radiating elements, each group being supplied by the delta supply circuit in TE21 mode, the delta radiating elements of one group being supplied with phase shifting of 90 degrees relative to the delta radiating elements of the other group. ### Claim 13 (depends on 1) The source according to claim 1, comprising three sigma radiating assemblies each operating in a different frequency band and three delta radiating assemblies each operating in one of said different frequency bands, the sigma radiating elements of the three sigma radiating assemblies being arranged in tiers and centred on the main transmission/reception axis of the source, the sigma radiating elements operating in a higher frequency band being tiered, in the direction of propagation of the electromagnetic wave, above the sigma radiating elements operating in a lower frequency band. ### Claim 14 (depends on 13) The source according to claim 13, wherein the sigma radiating element comprises a radiating patch and a ground plane having coupling slots, the coupling slots being arranged according to an invariant design by rotation of 90 degrees about the main transmission/reception axis of the source and the sigma radiating elements operating in a lower frequency band are combined with the ground plane of the sigma radiating elements operating in a higher frequency band.