EP0986123A2 - Transition entre deux guides d' ondes carrés, tournés de 45 - Google Patents

Transition entre deux guides d' ondes carrés, tournés de 45 Download PDF

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Publication number
EP0986123A2
EP0986123A2 EP99110747A EP99110747A EP0986123A2 EP 0986123 A2 EP0986123 A2 EP 0986123A2 EP 99110747 A EP99110747 A EP 99110747A EP 99110747 A EP99110747 A EP 99110747A EP 0986123 A2 EP0986123 A2 EP 0986123A2
Authority
EP
European Patent Office
Prior art keywords
square
waveguide
transition
section
waveguides
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.)
Withdrawn
Application number
EP99110747A
Other languages
German (de)
English (en)
Other versions
EP0986123A3 (fr
Inventor
Martin Schneider
Werner Speldrich
Uwe Rosenberg
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.)
Telent GmbH
Original Assignee
Robert Bosch GmbH
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0986123A2 publication Critical patent/EP0986123A2/fr
Publication of EP0986123A3 publication Critical patent/EP0986123A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/082—Transitions between hollow waveguides of different shape, e.g. between a rectangular and a circular waveguide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/02—Bends; Corners; Twists
    • H01P1/022—Bends; Corners; Twists in waveguides of polygonal cross-section

Definitions

  • the present invention relates to a transition between two around a common longitudinal axis at 45 ° to each other twisted square waveguides.
  • a transition is fed into a square waveguide Basic wave type of a horizontal or vertical Polarization into two equal signal components Basic wave types on the other rotated by 45 ° Split square waveguide.
  • Basic wave type of a horizontal or vertical Polarization
  • Basic wave types on the other rotated by 45 ° Split square waveguide.
  • such a transition causes a 3dB power split and e.g. therefore with an additional polarizer for the conversion of a linear polarization into a circular one Polarization can be used.
  • According to the above Publishing occurs the transition between the two Square waveguides by a mutual Cross-section intersection. This form of transition between two square waveguides rotated against each other by 45 ° only through special, complex, high costs Manufacturing processes (e.g. galvanoplastic or eroding) producible.
  • the invention is therefore based on the object Transition of the type mentioned at the beginning, which with is as simple as possible to produce.
  • the one Internal cross-sectional dimensions of both square waveguides are not has inner diameter exceeding.
  • a Further training can be in the direction of the longitudinal axis Round waveguide section at least one other Round waveguide section with a different inner diameter connect, which also has the internal cross-sectional dimensions does not exceed either square waveguide.
  • each of the two is there Square waveguide sections rotated about the longitudinal axis so that its side walls are parallel to the side walls of it directly adjacent square waveguide are aligned, and the internal cross-sectional dimensions of each Square waveguide sections do not exceed that Internal cross-sectional dimensions of the one directly adjacent to it Square waveguide.
  • the Inside diameter is the inside cross-sectional dimensions of the two Square waveguide sections does not exceed.
  • the Square waveguide section is rotated about the longitudinal axis so that its side walls are parallel to the side walls of it directly adjacent square waveguide are aligned, and the circular waveguide section has a die Internal cross-sectional dimensions of the one directly adjacent to it Square waveguide not exceeding inner diameter on.
  • the transition between the two by 45 ° against each other twisted square waveguides can e.g. for one Polarization conversion or used as a 3dB power divider become.
  • the different variants of a transition between two around Quadrant waveguides rotated by 45 ° are very good low reflection and they allow the individual Sections of the transition from the end faces by means of a milling machine can be processed.
  • the milling is associated with a considerably lower effort than Electroplating or EDM processes.
  • Figures 1a and 1b illustrate that one in one Square waveguide 1 fed vertically polarized ( Figure 1a) or horizontally polarized (Figure 1b) Fundamental wave through the transition to a square waveguide 2, compared to the square waveguide 1 around its longitudinal axis Is rotated 45 °, in two equally large orthogonal to each other divided polarized signal components of the basic wave type becomes.
  • the arrows in FIGS. 1a and 1b indicate the Polarization directions of the signal components.
  • Figures 2 to 6 there is one on the left side View from the end face of the first square waveguide 1 shown here in the transition. And on the right Side of Figures 2 to 6 is a longitudinal section A-A, B-B, C-C, D-D and E-E represented by the transition.
  • the lines in Figures 2 to 6 give only the contours of Internal cross sections or longitudinal sections of the individual Waveguide sections again.
  • the one in the individual Waveguide sections on the right side of FIGS. 2 to 6 drawn square or circle symbols indicate the Cross-sectional shape of the respective waveguide section.
  • the embodiment of a transition shown in Figure 2 between the first square waveguide 1 and him compared to second square waveguide 2 rotated by 45 ° consists of a circular waveguide section 3, the one Internal cross-sectional dimensions of both square waveguides 1 and 2 does not exceed the inner diameter.
  • the shown embodiment corresponds to the Inner diameter of the circular waveguide section 3 exactly Side length of the square waveguide 1 and 2.
  • the transition shown in Figure 4 between the first Square waveguide 1 and the second square waveguide 2 consists of two in a row in the direction of the longitudinal axis arranged square waveguide sections 5 and 6 with rounded corners.
  • the first square waveguide 1 directly adjacent square waveguide section 5 each of the two square waveguide sections 5 and 6 are the same aligned like the one directly adjacent to it Square waveguide 1 and 2. That is, the Square waveguide section 5 is with respect to the first Square waveguide 1 50 rotated that its side walls parallel to the side walls of the square waveguide 1 are aligned, and the square waveguide section 6 about the longitudinal axis common to all waveguide sections rotated that its side walls are parallel to the side walls of the square waveguide 2 are aligned.
  • the Internal cross section of the square waveguide section 5 is not larger than the inner cross section of the neighboring one Square waveguide 1.
  • the inner cross section of the Square waveguide section 6 not larger than that Internal cross section of the adjacent square waveguide 2. It can also be between the two Square waveguide sections 5, 6 with rounded corners or several more square waveguide sections with rounded corners are inserted, the inner cross-sections must not be larger than the one on each side adjacent waveguide section.
  • the transition in FIG. 5 differs from that in FIG. 4 in that a round waveguide section 7 is also inserted between the two square waveguide sections 5 and 6. With this additional transformation level, the reflection properties of the transition can be further improved.
  • a square waveguide section with rounded corners can also be used, the inner cross section of which is smaller than that of the two adjacent waveguide sections.
  • the transition shown in Figure 6 consists of a Round waveguide section 8 and a square waveguide 9 together.
  • the one following the square waveguide 1 Round waveguide section has a diameter that is not goes beyond the side length of the square waveguide 1. in the special case is the diameter of the Round waveguide section 8 equal to the side length of the Square waveguide 1.
  • On the round waveguide section 8 includes a square waveguide section 9 rounded corners. This square waveguide section 9 is rotated about the longitudinal axis so that its side walls parallel to the side walls of the one directly adjacent to it Square waveguide 2 are aligned. Moreover exceed the internal cross-sectional dimensions of the Square waveguide section 9 not the Inner cross-sectional dimensions of the square waveguide 2.

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  • Waveguides (AREA)
EP99110747A 1998-09-02 1999-06-04 Transition entre deux guides d' ondes carrés, tournés de 45 Withdrawn EP0986123A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998139889 DE19839889C1 (de) 1998-09-02 1998-09-02 Übergang zwischen zwei um 45 DEG gegeneinander verdrehten Quadrathohlleitern
DE19839889 1998-09-02

Publications (2)

Publication Number Publication Date
EP0986123A2 true EP0986123A2 (fr) 2000-03-15
EP0986123A3 EP0986123A3 (fr) 2001-08-29

Family

ID=7879492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99110747A Withdrawn EP0986123A3 (fr) 1998-09-02 1999-06-04 Transition entre deux guides d' ondes carrés, tournés de 45

Country Status (2)

Country Link
EP (1) EP0986123A3 (fr)
DE (1) DE19839889C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1494309A1 (fr) * 2003-06-30 2005-01-05 M/A-Com, Inc. Appareil de transition de signaux d'un dispositif à guide d'ondes
EP1903630A1 (fr) * 2006-09-19 2008-03-26 NEC Corporation Transformation de polarisation
WO2012042552A1 (fr) * 2010-09-29 2012-04-05 Not Only Waves Srl Système et procédé pour déterminer une matrice de diffusion généralisée d'un dispositif de guide d'onde

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE510709A (fr) * 1951-04-21
US2668191A (en) * 1949-06-30 1954-02-02 Sperry Corp Wave energy polarization converter
US4311973A (en) * 1977-11-02 1982-01-19 Licentia Patent-Verwaltungs Gmbh Waveguide junction

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1031380B (de) * 1957-03-14 1958-06-04 Siemens Ag Hohlrohrleitungsabschnitt mit einstellbarer Querschnittsverdrehung fuer Hohlleiter mit rechteckfoermigem Querschnitt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668191A (en) * 1949-06-30 1954-02-02 Sperry Corp Wave energy polarization converter
BE510709A (fr) * 1951-04-21
US4311973A (en) * 1977-11-02 1982-01-19 Licentia Patent-Verwaltungs Gmbh Waveguide junction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J UHER ET AL.: "WAVEGUIDE COMPONENTS FOR ANTENNA FEED SYSTEMS : THEORY AND CAD" 1993 , ARTECH HOUSE , BOSTON XP002171252 * Seite 421, Zeile 29 - Seite 426, Zeile 9; Abbildung 3.8.34 * *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1494309A1 (fr) * 2003-06-30 2005-01-05 M/A-Com, Inc. Appareil de transition de signaux d'un dispositif à guide d'ondes
US7068121B2 (en) 2003-06-30 2006-06-27 Tyco Technology Resources Apparatus for signal transitioning from a device to a waveguide
EP1903630A1 (fr) * 2006-09-19 2008-03-26 NEC Corporation Transformation de polarisation
US7772939B2 (en) 2006-09-19 2010-08-10 Nec Corporation Polarization transformation circuit
CN101150214B (zh) * 2006-09-19 2013-06-12 日本电气株式会社 极化转换
WO2012042552A1 (fr) * 2010-09-29 2012-04-05 Not Only Waves Srl Système et procédé pour déterminer une matrice de diffusion généralisée d'un dispositif de guide d'onde

Also Published As

Publication number Publication date
EP0986123A3 (fr) 2001-08-29
DE19839889C1 (de) 2000-05-11

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