EP1461843A2 - Composant radiofrequence et procede de fabrication associe - Google Patents

Composant radiofrequence et procede de fabrication associe

Info

Publication number
EP1461843A2
EP1461843A2 EP02806773A EP02806773A EP1461843A2 EP 1461843 A2 EP1461843 A2 EP 1461843A2 EP 02806773 A EP02806773 A EP 02806773A EP 02806773 A EP02806773 A EP 02806773A EP 1461843 A2 EP1461843 A2 EP 1461843A2
Authority
EP
European Patent Office
Prior art keywords
rings
housing member
assembly
ring
inter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02806773A
Other languages
German (de)
English (en)
Other versions
EP1461843B1 (fr
EP1461843A4 (fr
Inventor
Kenneth Neal Segal
Alan Kogut
Mark K. Pryor
John E. Marks
Patrick N. Bonebright
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Composite Optics Inc
Original Assignee
Composite Optics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/164,990 external-priority patent/US7095379B2/en
Application filed by Composite Optics Inc filed Critical Composite Optics Inc
Publication of EP1461843A2 publication Critical patent/EP1461843A2/fr
Publication of EP1461843A4 publication Critical patent/EP1461843A4/fr
Application granted granted Critical
Publication of EP1461843B1 publication Critical patent/EP1461843B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/0283—Apparatus or processes specially provided for manufacturing horns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/288—Satellite antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/0283—Apparatus or processes specially provided for manufacturing horns
    • H01Q13/0291—Apparatus or processes specially provided for manufacturing horns for corrugated horns
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article

Definitions

  • the invention relates to electrical components.
  • the invention relates to
  • Feedhorns are used to obtain signals
  • Feedhorns used in space require an unusual combination of low weight, structural stiffness, and thermal
  • Certain feedhorns are generally
  • the feedhorn have sufficient structural strength and stiffness because the satellite must be able to withstand forces imparted during launch without permanent deformation. A feedhorn lacking sufficient strength and stiffness, even if it is low weight, may not survive the launch process. Thermal stability is another important
  • the materials and construction methods used to construct the feedhorn need be capable of providing a foundation that will not bend or
  • the elements are generally
  • FIG. 1A is a plan view depicting a blank of components on a flat sheet of graphite fiber reinforced plastic laminate in an embodiment according to the present invention
  • Fig. IB is a plan view depicting a blank of outer skins on an additional flat sheet of graphite fiber reinforced plastic laminate;
  • FIG. 3 is a perspective view depicting an intermediate step in the construction in an embodiment according to the present invention.
  • FIG. 4 is a perspective view depicting a final stage of assembly in an embodiment
  • FIG. 5 is a cut away perspective view depicting a final stage of assembly in an embodiment according to the present invention.
  • FIG. 6 is a partial perspective view of a feed horn in an embodiment according to the present invention.
  • Fig. 7A is a plan view depicting a blank of rings and ribs on a flat sheet of graphite
  • Fig. 7B is a plan view depicting a blank of bands on another flat sheet of graphite fiber
  • Fig. 8 is a perspective view depicting self-fixturing features of a ring and a band
  • Fig. 9 is a perspective view depicting a portion of the ring and band of Fig. 8
  • FIG. 10 is a perspective view depicting two sections of the self-fixturing ring and band
  • FIGS. 11A and 11B are perspective views depicting a stage of assembly in an
  • Fig. 12 is a side perspective view of an assembled vertical wall feedhorn according to an embodiment of the present invention
  • Fig. 13 is a side view of the assembled vertical wall feedhorn of Fig. 12;
  • Fig. 14 is a cut-away perspective view of the assembled vertical wall feedhorn of Figs.
  • Fig. 15 A is a plan view depicting a blank of rings on a flat sheet of graphite fiber
  • Fig. 15B is a plan view depicting a blank of bands on another flat sheet of graphite
  • FIG. 16 is a perspective view depicting the self-fixturing features of a portion of a ring
  • FIG. 17 is a perspective view depicting two sections of the self-fixturing ring and band
  • Fig. 18 is a side perspective view of an assembled vertical wall feedhorn according to
  • Fig. 19 is a side view of the assembled vertical wall feedhorn of Fig. 18;
  • Fig. 20 is a cut-away perspective view of the assembled vertical wall feedhorn of Figs.
  • Fig. 21 is a detailed view of a section of the cut-away view illustrated in Fig. 20.
  • Fig. 1A shows a plan view of a blank 12 including a flat laminate sheet.
  • the sheet may
  • each ring has a different diameter, ranging from smallest to largest.
  • Each ring such as ring 14, is provides with a plurality of ring appendages, such as appendage 16.
  • each ring is provided with a plurality of ring appendages, such as appendage 16. In the embodiment illustrated in Fig. 1A, each ring
  • An additional bottom ring 18 is also formed on the blank 12.
  • the bottom ring 18 is
  • the bottom ring 18 is also provided with a plurality of rib-mounting notches, such as notch 23.
  • the rib-mounting notch 23 is adapted to accommodate a
  • a rib such as rib 25, during assembly.
  • the embodiment illustrated in Fig. 1A also includes six ribs, such as rib 25, to be cut
  • each rib is provided with a plurality of rib slots, such as slot 27, adapted to interlock with corresponding slots formed on the ring appendages, as described in further detail below.
  • the layout may be designed such that the available area of the blank 12 is efficiently utilized.
  • Fig. IB shows a plan view of a second blank 29 from which a plurality of skin sheets, such as skin sheet 32, may be cut out. As shown in Fig. IB, the skin sheets are substantially identical to each other in size and shape. In the embodiment illustrated in
  • Fig. IB three skin sheets are provided.
  • Each of the skins has a plurality of center line holes, such as hole 34, and a plurality of edge slots, such as slot 36, on opposite edges.
  • the center line holes are adapted to allow the ring appendages, such as appendage 16
  • Each edge slot is approximately one-half the
  • corresponding edge slots on the two sheets form a single slot that is approximately the same size and shape as a centerline hole.
  • FIGs. 2 A and 2B show partial perspective views of a rib 38 and a ring 43.
  • the rib 38 has a plurality of rib slots, such as rib slot 41.
  • the rib slot 41 is aligned with a slot 47 in a ring appendage 45 of the ring 43.
  • the rib slot 41 is a vertical slot, while the ring
  • appendage slot 47 is a horizontal slot. Once the slots 41, 47 are in alignment with each
  • the rib 38 is pushed toward the ring 43 to interlock the slots 41, 47, as most
  • Fig. 3 shows a perspective view of multiple sections of an assembly during the
  • a bottom ring 49 is provided to secure one or more ribs, such as
  • rib 56a In one embodiment, three alternating ribs may be first secured to the bottom
  • a plurality of rings such as ring 54, . may be secured in to the ribs by interlocking rib slots with slots on ring appendages, such as ring appendage 56a, as described above with reference to Figs. 2A and 2B.
  • the rings are secured in a vertically spaced-apart configuration.
  • the rings are order such that the smallest ring is closest to the bottom ring 49.
  • the centerline holes and the edge slots on the skin sheets are sized for a tight fit with corresponding ring appendages on the
  • the skin sheet With the skin sheet in place, the skin sheet may be secured by a rib, such as
  • FIG. 4 shows a perspective view of an assembled feedhorn in an embodiment according
  • the feedhorn is of a generally frusto-conical
  • ribs 52a, 52b spaced-apart ribs, such as ribs 52a, 52b, around the perimeter of the assembly.
  • Fig. 5 is a cutaway perspective view of the feedhorn of Fig. 4, showing the vertically
  • the internal configuration of the feedhorn is electrically
  • Fig. 6 shows a partial perspective view of a feedhorn in an embodiment according to
  • ring appendages have slots, such as slot 69, while the rib 63 has corresponding slots,
  • slot 72 such as slot 72, which are sized and shaped for a tight fit with the appendage slots.
  • each ring being made of a single segment
  • a dimensional inspection may be made to the structure to
  • the components are bonded together by using a
  • capillary adhesives such as Hysol 956 or 9396, available from E.
  • adhesive can be wicked to
  • finalized feedhorn can be sprayed or plated with a metallic coating to increase
  • FIG. 7 A shows a plan view of a blank 74, preferably of a lightweight CFRP composite material, from which a plurality of rings, such as ring 76, and a plurality of ribs, such
  • rib 81 are cut out in an embodiment according to the present invention.
  • the mortises are sized to accommodate tenons formed on bands, as described below.
  • the rings each have a different diameter, varying from the smallest to the largest.
  • ribs such as rib 81
  • rib 81 may also be cut from the same blank 74.
  • Each rib is provided with a series of rib slots, such as slot 83.
  • the ribs are generally identical in size and shape to each other.
  • Fig. 7B shows a plan view of a second blank 85 from which a plurality of bands, such
  • band 87 may be constructed. As shown in Fig. 7B, the bands each have a different
  • Each band is provided with a series of
  • tenons such as tenon 89.
  • the tenons are sized to tightly fit into the mortises, such as mortise 79 (Fig. 7A), on the rings.
  • Fig. 8 shows a perspective view of a self-fixturing ring-and-band assembly constructed
  • a ring 98 cut from a blank such as the blank 74 of Fig. 7A
  • a corresponding band 92 cut from a blank such as the blank 85 of Fig. 7B.
  • the band 92 is formed by bending one of the flat bands cut from the blank and
  • each band may include several
  • the ring 98 has a plurality of mortises, such as mortise 103 adjacent to the perimeter of the ring for receiving the tenons of the band 92.
  • FIG. 9 shows a perspective view of a portion of the ring-and-band assembly of Fig. 8,
  • tenons 109a, 109b are aligned with corresponding mortises in the ring 98 and inserted
  • the mortises in the ring and the tenons on the wrap are sized for a tight fitting to produce a rigid ring and wrap assembly structure. Two sets of mortises may be provided on each ring.
  • a set of upper mortises such as mortises 107a, 107b, may be positioned to
  • 105a, 105b may be positioned to receive a lower band which may be of a smaller diameter, thus requiring the lower mortises to be positioned slightly inward of the
  • a first ring- and-band assembly is formed by aligning and inserting the tenons on one side of the band 112 into the corresponding mortises in the ring 114.
  • the band 112 which has
  • additional band 118 is attached to the second ring 116.
  • the ring appendages, such as appendage 121a, on the ring 114 and the ring appendages, such as appendage 121b on the ring 116 are in alignment with each other for rib assembly. Additional sections of rings and bands can be assembled in a similar manner to form a microwave or RF
  • FIGs. 11A and 11B show partial perspective views of a rib 123 and a ring 125.
  • the rib slot 123 has a plurality of rib slots, such as rib slot 127.
  • the rib slot 127 is aligned with a slot 132 in a ring appendage 129 of the ring 125.
  • the rib slot 127 is a vertical slot
  • the rib 123 is pushed toward the ring 125 to interlock the slots 123, 125, as most clearly illustrated in Fig. 11B.
  • Other slots in the rib 123 are
  • slots on other ribs may be aligned and interlocked with the remaining
  • FIGS. 12-14 show perspective, side-sectional and cut-away perspective views of a
  • rib 136 four equally spaced ribs, such as rib 136, holding multiple sections of rings, such as
  • Fig. 14 is a cutaway perspective view of the feedhorn of Figs. 12 and 13, showing the interior walls of the feedhorn with spaced-apart rings. Generally, the internal
  • configuration of the feedhorn is electrically significant.
  • Each ring may be cut out from the blank 141.
  • Each ring is provided with a series of mortises,
  • band 149 such as band 149, may be constructed. As shown in Fig. 15B, the bands each have a
  • Each band is provided with a
  • tenon 152 series of tenons, such as tenon 152.
  • the tenons are sized to tightly fit into the mortises, such as mortise 145 (Fig. 15A), on the rings.
  • Fig. 16 shows a perspective view of a portion of a ring-and-band assembly using the ring and bands cut out from the blanks illustrated in Figs. 15 A and 15B. Fig. 16
  • a band 154 may be formed using one of the bands cut out from a blank, such as blank 147 (Fig. 15B).
  • a doubler 155 may be used to form a circular band.
  • the tenons on the band 154 such as tenons 156a, 156b, are aligned with corresponding mortises in the ring and inserted into the
  • Two sets of mortises may be provided on each ring. For example,
  • a set of upper mortises such as mortises 158a, 158b, may be positioned to receive an upper band, such as band 154, and a set of lower mortises, such as mortises 161a,
  • a lower band which may be of a smaller diameter
  • Fig. 17 shows a perspective view illustrating the assembly of two sections of rings and bands in an embodiment according to the present invention.
  • a first ring- . and-band assembly is formed by aligning and inserting the tenons on one side of the
  • the band 163 into the corresponding mortises in the ring 165.
  • the band 163 which has
  • Figs. 18-21 show perspective, side-sectional and cut-away perspective views of a feedhorn assembly 172 according to an embodiment of the present invention.
  • assembly 172 is of a generally frusto-bullet-shaped configuration and includes a series
  • rings such as rings 174 and bands 176 assembled in a self-fixturing manner.
  • FIGs. 20 and 21 illustrate cutaway perspective views of the feedhorn of Figs. 18 and 19, showing the interior walls of the feedhorn with spaced-apart rings. Generally, the internal configuration of the feedhorn is electrically significant.
  • CMC component matrix composite
  • a feedhorn may be
  • An adapter may be used to connect the base of the feedhorn, which may have a
  • a feedhorn with a circular cross-section may be connected to a waveguide

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Waveguide Aerials (AREA)
  • Connection Of Plates (AREA)

Abstract

L'invention concerne un composant et un procédé de construction. Le composant comprend une structure tubulaire creuse. Cette structure comprend une série d'anneaux séparés axialement et au moins un élément de logement de périmètre extérieur. L'élément de logement connecte entre eux les anneaux afin de définir une configuration interne de la structure tubulaire creuse à des fins électriques. Les anneaux et l'élément de logement comprennent chacun des éléments qui peuvent s'engager entre eux permettant d'aider à fixer mécaniquement ensemble les anneaux et l'élément de logement ce qui facilite l'assemblage final du composant électrique.
EP02806773A 2001-06-09 2002-06-07 Composant radiofrequence et procede de fabrication associe Expired - Lifetime EP1461843B1 (fr)

Applications Claiming Priority (15)

Application Number Priority Date Filing Date Title
US23795 1979-03-26
US29689101P 2001-06-09 2001-06-09
US29688901P 2001-06-09 2001-06-09
US25497501P 2001-06-09 2001-06-09
US296889P 2001-06-09
US296891P 2001-06-09
US29792801P 2001-06-13 2001-06-13
US29786701P 2001-06-13 2001-06-13
US29803801P 2001-06-13 2001-06-13
US298038P 2001-06-13
US297867P 2001-06-13
US297928P 2001-06-13
US164990 2002-06-06
US10/164,990 US7095379B2 (en) 2001-06-09 2002-06-06 Radio frequency component and method of making same
PCT/US2002/018099 WO2003096379A2 (fr) 2001-06-09 2002-06-07 Composant radiofrequence et procede de fabrication associe

Publications (3)

Publication Number Publication Date
EP1461843A2 true EP1461843A2 (fr) 2004-09-29
EP1461843A4 EP1461843A4 (fr) 2005-10-12
EP1461843B1 EP1461843B1 (fr) 2006-11-22

Family

ID=31982795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02806773A Expired - Lifetime EP1461843B1 (fr) 2001-06-09 2002-06-07 Composant radiofrequence et procede de fabrication associe

Country Status (4)

Country Link
EP (1) EP1461843B1 (fr)
JP (1) JP4160045B2 (fr)
AT (1) ATE346394T1 (fr)
DE (1) DE60216322T2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6331201A (ja) * 1986-07-25 1988-02-09 Hitachi Ltd コルゲ−トホ−ンの製造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6331201A (ja) * 1986-07-25 1988-02-09 Hitachi Ltd コルゲ−トホ−ンの製造方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 239 (E-630), 7 July 1988 (1988-07-07) & JP 63 031201 A (HITACHI LTD), 9 February 1988 (1988-02-09) *
See also references of WO03096379A2 *

Also Published As

Publication number Publication date
EP1461843B1 (fr) 2006-11-22
DE60216322T2 (de) 2007-06-21
JP4160045B2 (ja) 2008-10-01
ATE346394T1 (de) 2006-12-15
JP2005520453A (ja) 2005-07-07
DE60216322D1 (de) 2007-01-04
EP1461843A4 (fr) 2005-10-12

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