EP0789416A1 - Elément passif non réciproque à portes multiples - Google Patents

Elément passif non réciproque à portes multiples Download PDF

Info

Publication number
EP0789416A1
EP0789416A1 EP97200271A EP97200271A EP0789416A1 EP 0789416 A1 EP0789416 A1 EP 0789416A1 EP 97200271 A EP97200271 A EP 97200271A EP 97200271 A EP97200271 A EP 97200271A EP 0789416 A1 EP0789416 A1 EP 0789416A1
Authority
EP
European Patent Office
Prior art keywords
resonator element
ferrite
gate component
component according
bodies
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Withdrawn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
EP97200271A
Other languages
German (de)
English (en)
Inventor
Ralf Dr.-Ing. Wendel
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Corporate Intellectual Property GmbH
Philips Patentverwaltung GmbH
Koninklijke Philips Electronics NV
Philips Electronics NV
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 Philips Corporate Intellectual Property GmbH, Philips Patentverwaltung GmbH, Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Philips Corporate Intellectual Property GmbH
Publication of EP0789416A1 publication Critical patent/EP0789416A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/32—Non-reciprocal transmission devices
    • H01P1/38—Circulators
    • H01P1/383—Junction circulators, e.g. Y-circulators
    • H01P1/387—Strip line circulators

Definitions

  • the invention relates to a passive, non-reciprocal multi-gate component with a resonator element designed as a strip conductor, which has a central resonance area and connecting lines with matching elements, with two disk-shaped carrier plates and two ferrite bodies.
  • Such a multi-gate component is known for example from Meincke, Gundlach, "Taschenbuch der Hochfrequenztechnik", 4th edition, pages L 35 to L 43.
  • Such multi-gate components are mainly used as circulators or directional lines in microwave technology (e.g. radar, microwave and measurement technology).
  • non-reciprocal means that the transmission properties are direction-dependent.
  • a circulator has three or four equal gates. In the ideal case, a high-frequency signal that is fed into gate 1 only exits undamped at gate 2 and no other gate. A signal fed in at gate 2 only exits at gate 3, etc. The quality of a circulator is expressed by the attenuations in the forward or reverse direction.
  • the resonator element is designed as a strip conductor, for example as a thin copper plate, and is arranged between two ferrite disks.
  • the resonator element has a central resonance region, which can be circular or triangular, for example, and a number of connecting lines corresponding to the number of gates. Since the microwave technology mainly works with cables with a characteristic impedance of 50 ohms, matching elements are provided in all supply lines, which adapt the impedance of the resonator to 50 ohms.
  • they are each in a disk-shaped carrier plate arranged, for example introduced into a correspondingly large recess in the plate.
  • the ferrite bodies (the surfaces facing away from the resonator element) are at the same potential. This is achieved, for example, by a copper cladding around the two carrier plates with the ferrite bodies or by a metal housing around the entire component to which the ferrite bodies are conductively connected.
  • the present invention has for its object to design a multi-door component of the type mentioned in such a way that it has a small size and can be manufactured inexpensively.
  • the resonator element is immediately adjacent to a support plate and a ferrite body and that the ferrite bodies are designed and arranged so that they cover only the central resonance region of the resonator element.
  • the invention is based on the knowledge that it is not necessary for the resonator element to be completely covered by the ferrite bodies. It was found that it is sufficient to achieve the desired resonator properties and the desired damping values if only the central resonance region lies between the ferrite bodies.
  • the connecting lines and the adapter elements are located outside the ferrite bodies and are not covered by the ferrite bodies.
  • the size of the ferrite bodies can be significantly reduced by the invention, which leads to a reduction in the production costs for such a multi-gate component.
  • the overall size of the component can also be reduced as a result. Due to the smaller size of the ferrite bodies, there are also fewer magnetic losses in the ferrite bodies. This means that for the Through loss significantly lower values can be achieved than with the multi-gate components of the known type.
  • Another advantage is that the intermodulation behavior is improved, i.e. that fewer mixed products are produced than with known multi-door components.
  • Such mixed products e.g. signals at multiples of the useful frequency
  • these are not covered by the ferrite bodies in the arrangement according to the invention, but rather only the central resonance region designed as a simple regular body, much fewer mixed products can arise here.
  • this simple arrangement can also be computed comparatively easily in terms of field theory, and an analysis is also possible, for example, using the method of developing orthogonal rows. This also enables a computer-aided design of such an arrangement.
  • the connecting lines with the adapter elements are covered by the carrier plates.
  • the ferrite bodies are laterally surrounded by the carrier plates and that the carrier plates and the respectively associated ferrite body have different heights on the side facing away from the resonator element.
  • the ferrite body and the carrier plate are at least partially arranged in the same plane and that the ferrite body, which is preferably designed as a flat disk, is, for example, fitted centrally into the carrier plate.
  • the carrier plate with the ferrite body must form a surface that is as flat as possible so that the surfaces of the the two ferrite bodies have the same potential as exactly as possible. For this reason, this surface was surface-ground in a relatively complex and cost-intensive process. According to the invention, however, this process is superfluous, since it was recognized that the desired resonance properties are not lost even when there are differences in height between the ferrite body and the associated carrier plate.
  • the height of the ferrite body can be both smaller and larger than the height of the carrier plate surrounding it. It is only important that a good conductive connection is made to the surfaces of the two ferrite bodies.
  • the carrier platelets consist of a dielectric material with a dielectric constant ⁇ r > 1.5, in particular Teflon, glass fiber reinforced plastic or barium titanate and in particular with a dielectric constant ⁇ r > 12.
  • ⁇ r dielectric constant
  • Teflon with an ⁇ r of approximately 10
  • plastic have the great advantage that they are very easy to machine.
  • the recesses for the ferrite body can be made to fit precisely by simple punching.
  • Barium titanate is particularly suitable for use as a carrier plate because of the high dielectric constant of approximately 40. This also reduces losses.
  • the resonator element has idle lines and that the ferrite bodies are designed and arranged such that they do not cover the idle lines.
  • empty lines which are on the outer edge of the central resonance range can be arranged and configured differently, the resonance properties of the resonator element, in particular the resonance frequency and the damping properties, can be changed. It was recognized according to the invention that these idle lines also do not have to be covered by the ferrite bodies as previously assumed.
  • means are provided for creating an electrically conductive connection between the surfaces of the ferrite bodies facing away from the resonator element and a permanent magnet for generating a static magnetic field through the ferrite bodies and the resonator element.
  • the means are, for example, metallic layers and / or metallic sheets or platelets, which serve to conduct electrical currents over the surfaces of the ferrite bodies and the carrier platelets facing away from the resonator element.
  • An advantageous embodiment of the invention provides that a bent sheet is arranged for centering and fixing around the multi-gate component. While originally the carrier elements, mostly ceramic bodies, were both manufactured with high accuracy and had to be aligned with one another so that the ferrite bodies are arranged as precisely as possible one above the other, an accurate manufacture of the carrier platelets is sufficient here, which is easy to achieve due to the material used. A centering and thus an exact alignment of the ferrite bodies one above the other is achieved simply by bending a thin sheet around the carrier plate and the magnet. The sheet also has the advantage that the magnetic field lines generated by the magnet can close through the ferrite body over this sheet.
  • the multi-gate component is a circulator or an insulator.
  • a circulator is used, for example, in directional radio technology if the same antenna is to be used for a directional radio transmitter and a directional radio receiver.
  • the gate 1 from Power fed into the transmitter is then passed on to Gate 2, where the antenna is located.
  • a power received by the antenna is passed on to the receiver located at gate 3.
  • multi-gate components according to the invention are increasingly used as isolators (or directional lines) for decoupling between two amplifier stages. A power reflected at gate 2 is then absorbed by a terminating resistor connected to gate 3.
  • the invention also relates to an arrangement for transmitting and / or receiving high-frequency signals with a multi-gate component according to the invention described above.
  • 1 shows a cross section through a multi-gate component according to the invention.
  • 1 designates a resonator element designed as a strip conductor.
  • Above the resonator element 1 there is a disk-shaped, rectangular carrier plate 2 which has a hole in the center in which a disk-shaped ferrite body 4 is seated.
  • the carrier plate 2 and the ferrite body 4 lie directly on the resonator element 1.
  • a thin copper layer 7 is applied to the surface of the carrier plate 2 and the ferrite body 4, and a further copper layer 8 is located on the exposed surface of the carrier plate 3 and the ferrite body 5.
  • a permanent magnet 6 which through the static magnetic field Ferrite body 4 and 5 and the resonator element 1 generated.
  • pole disk 12 Between the magnet 6 and the ferrite body 4 there is also a so-called pole disk 12, a steel plate, which is intended to ensure the most homogeneous possible distribution of the magnetic field (in the plane parallel to the plane of the resonator element 1) over the two ferrite bodies 4 and 5.
  • a first metal sheet 9 is bent over the upper part of the arrangement (carrier plate 2, pole disk 12 and magnet 6) and is electrically connected both to the copper layer 7 and to the magnet 6.
  • a second metal sheet 10 is bent over the lower part of the arrangement in such a way that it overlaps with the first metal sheet 9 in the plane in which the resonating element 1 lies and results in a conductive connection.
  • the second metal sheet 10 is also electrically connected to the copper layer 8. Laterally, connecting leads 11 of the resonator element 1 protrude between the carrier plates 2 and 3, to which the cable feeds to further external components such as an amplifier or an antenna can be connected.
  • the ferrite bodies 4 and 5 cover the resonator element 1 only in a central region, namely the central resonance region 15. The remaining region of the resonator element 1 is only covered by the carrier plates 2 and 3. Furthermore, it can be seen that the carrier plate 2 and the ferrite body 4 have different heights on the side facing away from the resonator element 1. The same applies to the carrier plate 3 and the ferrite body 5. A good connection, as far as possible without an air gap, nevertheless occurs between the ferrite body 4 or the copper layer 7 and the pole disk 12 in that a force is exerted on the magnet 6 by means of the metal sheet 9 from above can be, so that the magnet 6 with the pole disk 12 is pressed onto the surface 41 of the ferrite body 4.
  • the copper layers 7 and 8 serve to conduct electrical currents over the surfaces 41 and 51 of the ferrite bodies 4 and 5 facing away from the resonator element 1 and the carrier plates 2 and 3.
  • the copper layers 7 and 8 are conductively connected to the metal sheets 9 and 10 and are therefore, like these, at the same ground potential. For the operation of such a multi-gate component, it is necessary that the same potential is present on both ferrite bodies 4 and 5 on the sides 41 and 51 facing away from the resonator element 1.
  • the resonator element denoted by 1 in FIG. 1 is shown in a plan view in FIG. 2.
  • the central resonance region 15 configured in a circle and the three connecting lines 11 can be seen.
  • This is a resonator element designed as a strip conductor for a circulator with three gates.
  • matching elements 14 are provided in the feed lines. As here, these can be ⁇ / 4 transformers or flat L-C elements.
  • the resonator element here has three idle lines 13, by means of which the desired resonator properties are set (depending on the design of the idle lines 13).
  • FIG. 3 which has the same scale as FIG. 2, it should be made clear in which area the resonator element shown in FIG. 2 is covered by the ferrite bodies or the carrier platelets in the arrangement shown in FIG. 1. Only the central resonance region 15 of the resonator element is covered by the ferrite body 4, while both the idle lines 13 and the Connection lines 11 with the adapter elements 14 are only covered by the carrier plate 2.
  • the central resonance region 15 and the ferrite body 4 (as well as the ferrite body 5 not shown here) have the same diameter.
  • the pole disk 12 in the arrangement shown in FIG. 1 can be omitted if a homogeneous distribution of the magnetic field over the ferrite bodies is ensured in another way, for example by a correspondingly large magnet.
  • the manner in which a static magnetic field is generated by the ferrite body is immaterial to the invention.
  • the magnet could also be arranged at another location, or two or more magnets could be arranged at suitable locations laterally next to the ferrite bodies.
  • the extent of the height differences between a ferrite body and the associated carrier plate is likewise insignificant for the invention.
  • a ferrite body could also have a lower height than the associated carrier plate. It only has to be ensured that the magnetic field is distributed as homogeneously as possible over the ferrite body and that currents can flow off the surface of a ferrite body.
  • the ferrite bodies could also have different diameters, and it is also conceivable that the diameter of one or both ferrite bodies is smaller than the central resonance region of the resonator element.
  • the invention provides a solution for making passive, non-reciprocal components, in particular circulators and isolators, for microwave technology as small as possible and inexpensive to manufacture.
  • passive, non-reciprocal components in particular circulators and isolators
  • the size of the ferrite bodies is reduced, and these are only made so large that only the central resonance region is covered by them.

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Non-Reversible Transmitting Devices (AREA)
EP97200271A 1996-02-10 1997-01-31 Elément passif non réciproque à portes multiples Withdrawn EP0789416A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19604861 1996-02-10
DE19604861 1996-02-10

Publications (1)

Publication Number Publication Date
EP0789416A1 true EP0789416A1 (fr) 1997-08-13

Family

ID=7785025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97200271A Withdrawn EP0789416A1 (fr) 1996-02-10 1997-01-31 Elément passif non réciproque à portes multiples

Country Status (2)

Country Link
EP (1) EP0789416A1 (fr)
JP (1) JPH09298406A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114512780A (zh) * 2022-03-11 2022-05-17 西南应用磁学研究所(中国电子科技集团公司第九研究所) 一种高三阶互调性能的环行器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6135386B2 (ja) * 2013-08-08 2017-05-31 三菱電機株式会社 高周波モジュール
CN104916889B (zh) * 2015-05-28 2018-01-16 上海华为技术有限公司 一种隔离器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246261A (en) * 1963-01-24 1966-04-12 Bendix Corp Isolator using internally terminated circulator
US4276522A (en) * 1979-12-17 1981-06-30 General Dynamics Circulator in a stripline microwave transmission line circuit
EP0127873A1 (fr) * 1983-05-30 1984-12-12 Nec Corporation Circuit constitué d'un isolateur dans lequel est incorporé un élément à admittance
US4789844A (en) * 1987-05-29 1988-12-06 Raytheon Company Broad-band non-reciprocal microwave devices
US5172080A (en) * 1991-06-28 1992-12-15 Radio Frequency Systems, Inc. Garnet centering ring for circulators and isolators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246261A (en) * 1963-01-24 1966-04-12 Bendix Corp Isolator using internally terminated circulator
US4276522A (en) * 1979-12-17 1981-06-30 General Dynamics Circulator in a stripline microwave transmission line circuit
EP0127873A1 (fr) * 1983-05-30 1984-12-12 Nec Corporation Circuit constitué d'un isolateur dans lequel est incorporé un élément à admittance
US4789844A (en) * 1987-05-29 1988-12-06 Raytheon Company Broad-band non-reciprocal microwave devices
US5172080A (en) * 1991-06-28 1992-12-15 Radio Frequency Systems, Inc. Garnet centering ring for circulators and isolators

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MEINCKE, GUNDLACH.: "Taschenbuch der Hochfrequenztechnik.", pages: L35 - L43
Z. UZDY: "Computer-aided design of stripline ferrite junction circulators", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 28, no. 10, October 1980 (1980-10-01), NEW YORK US, pages 1134 - 1136, XP002029454 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114512780A (zh) * 2022-03-11 2022-05-17 西南应用磁学研究所(中国电子科技集团公司第九研究所) 一种高三阶互调性能的环行器

Also Published As

Publication number Publication date
JPH09298406A (ja) 1997-11-18

Similar Documents

Publication Publication Date Title
DE69821327T2 (de) Kurzgeschlossene Streifenleiterantenne und Gerät damit
DE69121352T2 (de) Vorrichtung zur Speisung eines Strahlungselementes für zwei orthogonale Polarisationen
EP1104587B1 (fr) Radiateur plane a large baude
DE2943502C2 (fr)
DE69527020T2 (de) Mikrostreifenleitungsantenne insbesondere für Uhrenanwendung
DE1002828B (de) Richtungskoppler im Mikrowellenbereich fuer unsymmetrische Bandleitungen
DE69716359T2 (de) Mehrschichtige dielektrische Leitungsschaltung
DE69624320T2 (de) Nichtreziprokes Schaltungselement
DE19822072C1 (de) Mikrowellenschalter
DE69621567T2 (de) Nichtreziprokes Schaltungselement
EP2489095B1 (fr) Coupleur d'antenne
DE19915074A1 (de) Dielektrischer Resonator und dielektrisches Filter mit einem solchen Resonator
EP0789416A1 (fr) Elément passif non réciproque à portes multiples
DE2105281B2 (de) Bimodaler Hohlraumresonator
EP0022990B1 (fr) Symétriseur microondes du type microstrip
DE69517365T2 (de) Nichtreziprokes Schaltungselement
EP0124168B1 (fr) Mélangeur
DE69113885T2 (de) Mikrowellenmodul des Streifenleitungstyps.
DE69428421T2 (de) Nicht-reziprokes schaltungselement
DE112021001460T5 (de) Doppelseitige Platte, Radarvorrichtung, Übertragungselement, und Verfahren zum Herstellen eines Übertragungselements
DE4323387A1 (de) Monopuls-Kleinradar
DE60002944T2 (de) Nichtreziproke Schaltungsanordnung mit dielektrischem Wellenleiter und Funkgerät mit einer solchen Schaltungsanordnung
EP0429791B1 (fr) Dispositif pour syntoniser un résonateur
EP2137787B1 (fr) Séparateur de tension continue
DE2948315C2 (de) Laufzeitverzögernde Koppelanordnung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19980213

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Owner name: PHILIPS PATENTVERWALTUNG GMBH

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Owner name: PHILIPS CORPORATE INTELLECTUAL PROPERTY GMBH

17Q First examination report despatched

Effective date: 20010306

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010918