EP0827234A2 - Composant à micro-ondes - Google Patents

Composant à micro-ondes Download PDF

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Publication number
EP0827234A2
EP0827234A2 EP97202541A EP97202541A EP0827234A2 EP 0827234 A2 EP0827234 A2 EP 0827234A2 EP 97202541 A EP97202541 A EP 97202541A EP 97202541 A EP97202541 A EP 97202541A EP 0827234 A2 EP0827234 A2 EP 0827234A2
Authority
EP
European Patent Office
Prior art keywords
electrical conductor
recess
ferromagnetic material
microwave component
microwave
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Withdrawn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
EP97202541A
Other languages
German (de)
English (en)
Other versions
EP0827234A3 (fr
Inventor
Lars Walther
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 EP0827234A2 publication Critical patent/EP0827234A2/fr
Publication of EP0827234A3 publication Critical patent/EP0827234A3/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Withdrawn legal-status Critical Current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
    • 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 microwave component with a electromagnetic resonance arrangement, the at least one flat and the desired operating frequency and vibration training accordingly edged electrical conductor includes.
  • microwave components are are known and are used, for example, in microwave circuits Stripline technology used.
  • the electrical conductor of such a Strip line, which also form an electromagnetic resonance arrangement can be flat in such a way that it as a covering on a the electrical material arranged or as a conductive sheet or foil is trained.
  • the edge of such is flat trained electrical conductor to be regarded as essentially linear, since with the usual material thicknesses of such electrical conductors, i.e. their Dimensions perpendicular to the directions of the planar formation, the Area of the borders small compared to the surfaces of the electrical Are leaders in the directions of flat training.
  • the present invention always with a flat electrical conductor line-shaped boundary.
  • microwave components are used in particular in microwave circuits used as circulators.
  • the described flat electrical conductor can be used in a Stripline arrangement parallel to the surface of at least one other electrical conductor may be arranged; in particular, such an electrical Conductor with its two-dimensional extent between two essentially to each other parallel, further flat conductors can be inserted.
  • Such Arrangements for the transmission of microwaves are known in principle and in this arrangement, which is known in principle, is not in itself the subject of present invention.
  • the resonance frequency of this resonance arrangement and the field distribution of the electromagnetic that develops in the case of resonance Field of the shape and dimensions of the boundary of the flat electrical conductor. It is observed that for a reduction in Resonance frequency of such resonance arrangements the dimensions of the electrical conductor enlarged in the directions of its flat formation Need to become. Such an increase in the dimensions of the electrical Conductor and thus the electromagnetic resonance arrangement can in Contradiction to a requirement for the small size of the concerned Microwave component stand.
  • the invention has the task of lowering the resonance frequency To achieve resonance arrangement without increasing its external dimensions.
  • this object is achieved in the case of a microwave component type mentioned solved by a recess in the planar extent of the electrical conductor. If the microwave component is designed as non-reciprocal component by at least one-sided limitation of the electrical conductor with ferromagnetic material has this feroomagnetic Material according to the invention in its along the flat formation of the electrical conductor extending flat area a recess. This leaves the dimensions of the outer edge of the electrical conductor and therefore also those of the resonance arrangement unchanged, even if the Resonance frequency, i.e. the operating frequency of the resonance arrangement is reduced becomes.
  • the microwave component according to the invention is not designed Reciprocal component by the surface delimiting the electrical conductor Ferromagnetic material results in the reduction in the resonance frequency unchanged external dimensions either through the recess in the electrical conductor. the ferromagnetic material or both.
  • the two the latter measures also lead to a noticeable Reduction in the volume of the ferromagnetic material for the Microwave component according to the invention. This can add weight and manufacturing costs for the ferromagnetic material and thus for the microwave component according to the invention can be saved.
  • both the electrical conductor and the ferromagnetic material each have a recess in it have two-dimensional expansion.
  • the recess of the corresponds electrical conductor in its delimitation along the planar extent at least largely with the recess of the ferromagnetic material.
  • these recesses can lie congruently one above the other, at least, however, geometrically similar contours along the flat Have extension with preferably coinciding centers of symmetry. This is, for example, the same for concentric, circular recesses of different diameters, triangles with identical angles and coincident focal points or the like.
  • This enables distributions of the electromagnetic field which is different from that of the continuous, i.e. without Recess of flat electrical conductor or ferromagnetic Materials are only slightly different. It is preferably achieved that the resonance arrangement with the recess in resonance operation of the same Shaft type forms like without the recess.
  • the recess is advantageous arranged around the point of symmetry or on the line of symmetry.
  • the symmetries desired for the operation of the microwave component also obtained after insertion of the recess made according to the invention. This applies in particular if the recess is essentially symmetrical with respect to the Point of symmetry or the line of symmetry is formed.
  • a preferred application of the microwave component according to the invention consists in his training as a non-reciprocal component, which training is achieved in particular in that the electrical conductor at least on one side area is limited by ferromagnetic material.
  • the electrical conductor is flat on the surface a ferromagnetic body is arranged.
  • the ferromagnetic body can be strip-shaped in the form of a disk be formed and between the flat electrical conductor and the surface of the further head.
  • a layer arrangement is also possible the electrical in the space between two parallel, facing each other conductive surfaces and a first one perpendicular to them ferromagnetic disc, the flat electrical conductor and a second ferromagnetic disc are inserted.
  • the microwave component according to the invention comes used in a microwave circulator.
  • the microwave component according to the invention shows a series of for the practical use of very important advantages. So compared to the stand The technology first avoided that the resonance arrangement of the microwave circulator geometrically enlarged and the circulator by its size is no longer useful if it is at a lower operating frequency to be dimensioned. Also the use of a changed one ferromagnetic material with higher saturation magnetization and thus indispensable use of a stronger external magnetic field can be dispensed with, so that when Use of the microwave circulator according to the invention larger or more expensive Magnets are not required. Rather, these components can be from the microwave circulator the dimensioning chosen for the original operating frequency unchanged.
  • Fig. 1 shows in the form of a schematic, perspective exploded drawing the layered structure of a microwave circulator with a Microwave component according to the invention with a flat design electrical conductor 1 is constructed.
  • This electrical conductor 1 is in Fig. 1 in the Kind of a sheet with a surface 2 and one in comparison with the size this surface 2 is shown essentially in the form of a line 3.
  • the electrical conductor 1 represents a cylindrical body of very high low height, the surface 2 as a cover surface and a bottom surface Consistently shaped, the surface 2 opposite surface and has a lateral surface of very low height. Because strictly speaking flat formation of the lateral surface for the explanation of the present Invention is not important, the electrical conductor 1 is simplified as Disc with a surface 2 and with a linear border 3 instead considered the surface-shaped boundary.
  • Fig. 2 shows a plan view of the electrical conductor 1, as for the 1 according to the teaching of the present invention for Lowering the operating frequency can be formed with a recess 10.
  • the Electrical conductor 1 in FIGS. 1 and 2 is schematically simplified shown in the form of a circular disk; the recess 10 is also circularly edged and arranged concentrically with the edge 3 of the electrical conductor 1.
  • Resonance frequency can be influenced. At least in one particular Dimensional range for the diameter of the recess 10, the resonance frequency decrease to the same extent as the diameter of the recess 10 increases.
  • the electrical conductor 1 has the for its use in one Microwave circulator attached three connecting lines 11, 12, 13 on the are also formed in the form of a strip line.
  • these connecting lines 11, 12, 13th dimensioned uniformly and evenly over the circumference of the distributed circular electrical conductor 1.
  • Connection lines are available in a different number and arrangement.
  • FIGS. 1 and 2 show in a representation corresponding to Figure 2 more Embodiments for the design of the electrical conductor 1 according to the Invention.
  • These electrical conductors 1 are also for use in one Microwave circulator provided; with the exemplary embodiments in FIGS. 1 and 2 matching elements are again with the same reference numerals Mistake.
  • the electrical conductor 1 has an outer edge 3, which in their basic shape forms a circular disc with a geometric center 14.
  • the junction (third) connecting line 13 in the electrical Head 1 is expanded like a funnel. This expansion will, among other things, make one improved wave impedance matching achieved.
  • the connecting lines 11, 12, 13 are also of different widths to form different ones Shaft resistances executed.
  • the designs of the electrical conductors 1 according to FIGS. 3 and 43 differ in the geometric shape of the edge of the recess 10. While in Figure 3, the recess 10 is circular and concentric the circular sections of the boundary 3 of the electrical conductor 1 is the edge of the recess 10 in Fig. 4 in the form of an equilateral Triangular, the sides of which are parallel to the flats of the outer Boundary in the area of the mouths of the connecting lines 11, 12, 13 out are and its focus with the geometric center 14 of the electrical conductor 1 coincides. In a modification of the embodiment 4, the corners of the triangular recess 10 can also be rounded to reduce ohmic losses in particular.
  • FIG. 5 another embodiment of the invention is schematically in Fig. 1 shown microwave circulator shown, with already described Elements are again provided with identical reference symbols.
  • 5 are in addition to the design of the electrical conductor 1 with its recess 10 cutouts 15 and 16 are also provided in ferromagnetic material 4 and 5, respectively.
  • the disks 4 and 5 are made of ferro-magnetic Material broken through in such a way that they form the recesses Breakthroughs concentric and at least largely congruent Boundaries come to rest on the recess 10 in the electrical conductor 1.
  • Fig. 6 is this position of the disc 4 made of ferromagnetic material with its Recess 15 relative to the electrical conductor 1 by a dash-dotted line shown schematically.
  • FIG. 7 shows the electrical conductor shown in FIG. 3 in a corresponding manner 1 with the contours also indicated by a dash-dotted line Disk 4 made of ferromagnetic material
  • Fig. 8 shows the electrical conductor 1 in the embodiment of FIG. 4 with a disk 4 indicated by dash-dotted lines ferromagnetic material
  • the recess 15 of the contour of the recess 10 4 is adapted.
  • the recess 15 in the disc 4 6 has the recess 15 in the ferromagnetic material 7 a compared to the recess 10 in the electrical conductor 1 increased diameter, which also results in increased savings ferromagnetic material can be achieved.
  • the recess 15 is in the washer 4 of the triangular shape of the recess 10 in the electrical conductor 1 customized.
  • the disk 5, not shown in FIGS. 6 to 8, can be preferred be identical to the disk 4. They are also for training the recesses 15 and 16 in the ferromagnetic material other than that represented geometric shapes possible.
  • FIG. 9 A modification of these arrangements is shown in FIG. 9, in which only those in FIG Representation of lower disk 5 made of fero-magnetic material, a recess 16 where, on the other hand, both the upper disk 4 and the electrical conductor 1 are designed without a recess.
  • Disc 4 have a recess, or one of the discs 4,5 and electrical conductors 1 each have a recess.
  • the recesses can also 15, 16 in the ferromagnetic material as depressions, not - as shown - as Breakthroughs should be formed.

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  • Non-Reversible Transmitting Devices (AREA)
  • Soft Magnetic Materials (AREA)
EP97202541A 1996-08-29 1997-08-19 Composant à micro-ondes Withdrawn EP0827234A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19634952 1996-08-29
DE1996134952 DE19634952A1 (de) 1996-08-29 1996-08-29 Mikrowellen-Bauelement

Publications (2)

Publication Number Publication Date
EP0827234A2 true EP0827234A2 (fr) 1998-03-04
EP0827234A3 EP0827234A3 (fr) 1998-12-23

Family

ID=7804037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97202541A Withdrawn EP0827234A3 (fr) 1996-08-29 1997-08-19 Composant à micro-ondes

Country Status (3)

Country Link
EP (1) EP0827234A3 (fr)
JP (1) JPH1093309A (fr)
DE (1) DE19634952A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739302A (en) * 1971-06-01 1973-06-12 Trak Microwave Corp Miniaturized ferrimagnetic circulator for microwaves
US3978433A (en) * 1974-05-15 1976-08-31 Yoshiyuki Naito Magnetic transmission devices using the edge-guided mode of propagation
FR2592231A1 (fr) * 1985-12-20 1987-06-26 Thomson Csf Dispositif gyromagnetique miniature et procede d'assemblage de ce dispositif.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739302A (en) * 1971-06-01 1973-06-12 Trak Microwave Corp Miniaturized ferrimagnetic circulator for microwaves
US3978433A (en) * 1974-05-15 1976-08-31 Yoshiyuki Naito Magnetic transmission devices using the edge-guided mode of propagation
FR2592231A1 (fr) * 1985-12-20 1987-06-26 Thomson Csf Dispositif gyromagnetique miniature et procede d'assemblage de ce dispositif.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"BEATING THE BEAT" ELECTRONICS. DE 1984 A 1985 : ELECTRONICS WEEK., Bd. 42, Nr. 6, 17. M{rz 1969, Seiten 203-204, XP002082185 NEW YORK US *

Also Published As

Publication number Publication date
JPH1093309A (ja) 1998-04-10
EP0827234A3 (fr) 1998-12-23
DE19634952A1 (de) 1998-03-05

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