US6181295B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helix antenna with a built-in broadband power supply, and manufacturing methods therefor
Assignee: Orange SA
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Filing: 1997-03-13
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Granted: 2001-01-30
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Expires: 2017-03-13
Abstract
Abstract A resonant helix antenna comprising at least one helix formed by at least two radiating strands ( 111 to 114 ) printed on a substrate. This antenna comprises a miniaturised structure for the wideband supply of the radiating strands that is printed on the substrate and comprises at least one hybrid coupler made out of semi-localised elements so as to reduce the dimensions thereof. In the case of a quadrifilar helix, formed by four radiating strands, the supply structure comprises three hybrid couplers, for example in the form of a first 180° hybrid coupler ( 12 ) associating a supply input and/or output ( 17 ) of the antenna with two intermediate outputs and/or inputs ( 18, 19 ) phase-shifted by 180° and two 90° hybrid couplers ( 13, 14 ) each associating one of the intermediate outputs and/or inputs of the hybrid coupler with one of the ends of two of the radiating strands.
Inventors
- 👤 Ala Sharaiha
- 👤 Jean-Marc Toureilles
- 👤 Claude Terret
- 👤 Jean-pierre Blot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:58
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16; H01P5/19; H01P5/22; H01P5/227; H01P5/222; H01Q; H01Q11/00; H01Q11/02; H01Q11/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
169 words
A resonant helix antenna comprising at least one helix formed by at least two radiating strands printed on a substrate, characterised in that said antenna comprises a miniturised structure for the wideband supply of said radiating strands, that is printed on said substrate and comprises at least one hybrid coupler made out of semi-localised elements, said semi-localised elements are designed according to following steps: designing said coupler with conventional distributed stripline elements, each of them having at least a λ/4 length: turning each of said distributed stripline element into lumped elements, each of them being a π cell made of one capacitance C and two inductances L, L′; turning each of said capacitances and inductances into semi-localised elements, each of said inductances being turned into a reduced width line and each of capacitance into a larger width line, each of said line being smaller than λ/4; so that the space requirement of said supply structure is smaller than λ/4, λ being the maximum wavelength of operation of said antenna.
Claim 2
Dependent Claim
169 words
A resonant helix antenna comprising at least one helix formed by at least two radiating strands printed on a substrate, characterised in that said antenna comprises a miniturised structure for the wideband supply of said radiating strands, that is printed on said substrate and comprises at least one hybrid coupler made out of semi-localised elements, said semi-localised elements are designed according to following steps: designing said coupler with conventional distributed stripline elements, each of them having at least a λ/4 length: turning each of said distributed stripline element into lumped elements, each of them being a π cell made of one capacitance C and two inductances L, L′; turning each of said capacitances and inductances into semi-localised elements, each of said inductances being turned into a reduced width line and each of capacitance into a larger width line, each of said line being smaller than λ/4; so that the space requirement of said supply structure is smaller than λ/4, λ being the maximum wavelength of operation of said antenna.
Claim 3
Dependent Claim
30 words
An antenna according to claim 1 , characterised in that said helix is a quadrifilar helix, formed by four radiating strands supplied by a supply structure comprising three hybrid couplers.
Claim 4
Dependent Claim
66 words
An antenna according to claim 2 , characterised in that said supply structure comprises a first 180° hybrid coupler associating a supply input and/or output of said antenna with two intermediate outputs and/or inputs phase-shifted by 180° and two 90° hybrid couplers each associating one of said intermediate outputs and/or inputs of said hybrid coupler with one of the ends of two of said radiating strands.
Claim 5
Dependent Claim
113 words
A resonant helix antenna comprising at least one helix formed by at least two radiating strands printed on a substrate, characterised in that said antenna comprises a miniaturised structure, for the wideband supply of said radiating strands, that is printed on said substrate and comprises at least one hybrid coupler made out of semi-localised elements, so that the space requirement of said supply structure is smaller than λ/4, λ being the maximum wavelength of operation of said antenna, mounted on a support having a first part and a second part that are distinct with different values of permittivity, said first part bearing said radiating strands and said second part bearing said supply structure.
Claim 6
Dependent Claim
113 words
A resonant helix antenna comprising at least one helix formed by at least two radiating strands printed on a substrate, characterised in that said antenna comprises a miniaturised structure, for the wideband supply of said radiating strands, that is printed on said substrate and comprises at least one hybrid coupler made out of semi-localised elements, so that the space requirement of said supply structure is smaller than λ/4, λ being the maximum wavelength of operation of said antenna, mounted on a support having a first part and a second part that are distinct with different values of permittivity, said first part bearing said radiating strands and said second part bearing said supply structure.
Claim 7
Dependent Claim
28 words
An antenna according to claim 4 , characterised in that said first part bearing said radiating strands has a permittivity greater than the permittivity of said second part.
Claim 8
Dependent Claim
101 words
A resonant helix antenna according to claim 5 , wherein said semi-localised elements are designed according to following steps: designing said coupler with conventional distributed stripline elements, each of them having at least a λ/4 length; turning each of said distributed stripline element into lumped elements, each of them being a π cell made of one capacitance C and two inductances L, L′; turning each of said capacitances and inductances into semi-localised elements, each of said inductances being turned into a reduced width line and each of capacitance into a larger width line, each of said line being smaller than λ/4.
Claim 9
Dependent Claim
32 words
A resonant helix antenna according to claim 4 , characterised in that said helix is a quadrifilar helix, formed by four radiating strands supplied by a supply structure comprising three hybrid couplers.
Claim 10
Dependent Claim
46 words
An antenna according to claim 7 , characterised in that said supply structure comprises a first 180° and two 90° hybrid couplers each associating one of said intermediate outputs and/or inputs of said hybrid coupler with one of the ends of two of said radiating strands.
Claim 11
Dependent Claim
101 words
A resonant helix antenna according to claim 4 , wherein said semi-localised elements are designed according to following steps: designing said coupler with conventional distributed stripline elements, each of them having at least a λ/4 length; turning each of said distributed stripline element into lumped elements, each of them being a π cell made of one capacitance C and two inductances L, L′; turning each of said capacitances and inductances into semi-localised elements, each of said inductances being turned into a reduced width line and each of capacitance into a larger width line, each of said line being smaller than λ/4.
Claim 12
Independent Claim
186 words
A method for the manufacture of a resonant helix antenna with miniaturised supply, characterised in that it comprises the following steps: the printing, on a plane substrate, of at least two radiating strands designed to form a helix and of an independent, miniaturised structure for the wideband supply of said radiating strands comprising at least one hybrid coupler made out of semi-localised elements, said semi-localised elements are designed according to following steps: designing said coupler with conventional distributed stripline elements, each of them having at least a λ/4 length; turning each of said distributed stripline element into lumped elements, each of them being a π cell made of one capacitance C and two inductances L, L′; turning each of said capacitances and inductances into semi-localised elements, each of said inductances being turned into a reduced width line and each of capacitance into a larger width line, each of said line being smaller than λ/4; so that the space requirement of said supply structure is smaller than λ/4, λ being the maximum wavelength of operation of said antenna; the winding of said substrate around a cylindrical support.
Claim 13
Independent Claim
186 words
A method for the manufacture of a resonant helix antenna with miniaturised supply, characterised in that it comprises the following steps: the printing, on a plane substrate, of at least two radiating strands designed to form a helix and of an independent, miniaturised structure for the wideband supply of said radiating strands comprising at least one hybrid coupler made out of semi-localised elements, said semi-localised elements are designed according to following steps: designing said coupler with conventional distributed stripline elements, each of them having at least a λ/4 length; turning each of said distributed stripline element into lumped elements, each of them being a π cell made of one capacitance C and two inductances L, L′; turning each of said capacitances and inductances into semi-localised elements, each of said inductances being turned into a reduced width line and each of capacitance into a larger width line, each of said line being smaller than λ/4; so that the space requirement of said supply structure is smaller than λ/4, λ being the maximum wavelength of operation of said antenna; the winding of said substrate around a cylindrical support.
Claim 14
Independent Claim
185 words
A method for the manufacture of a resonant helix antenna with miniaturised supply, characterised in that said method comprises the following steps: the obtaining of a cylindrical support bearing a substrate; the printing, on said substrate, of at least two radiating antennas designed to form a helix and an independent, miniaturised structure for the wideband supply of said radiating strands comprising at least one hybrid coupler made out of semi-localised elements, said semi-localised elements are designed according to following steps: designing said coupler with conventional distributed stripline elements, each of them having at least a λ/4 length: turning each of said distributed stripline element into lumped elements, each of them being a π cell made of one capacitance C and two inductances L, L′; turning each of said capacitances and inductances into semi-localised elements, each of said inductances being turned into a reduced width line and each of capacitance into a larger width line, each of said line being smaller than λ/4; so that the space requirement of said supply structure is smaller than λ/4, λ being the maximum wavelength of operation of said antenna.
Claim 15
Independent Claim
185 words
A method for the manufacture of a resonant helix antenna with miniaturised supply, characterised in that said method comprises the following steps: the obtaining of a cylindrical support bearing a substrate; the printing, on said substrate, of at least two radiating antennas designed to form a helix and an independent, miniaturised structure for the wideband supply of said radiating strands comprising at least one hybrid coupler made out of semi-localised elements, said semi-localised elements are designed according to following steps: designing said coupler with conventional distributed stripline elements, each of them having at least a λ/4 length: turning each of said distributed stripline element into lumped elements, each of them being a π cell made of one capacitance C and two inductances L, L′; turning each of said capacitances and inductances into semi-localised elements, each of said inductances being turned into a reduced width line and each of capacitance into a larger width line, each of said line being smaller than λ/4; so that the space requirement of said supply structure is smaller than λ/4, λ being the maximum wavelength of operation of said antenna.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-01-30 | 2004-07-31 | 2005-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-30 | 2008-07-31 | 2009-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-30 | 2012-07-31 | 2013-01-30 | $7700.00 | Window Closed / Lapsed |