EP0022990A1 - Symétriseur microondes du type microstrip - Google Patents
Symétriseur microondes du type microstrip Download PDFInfo
- Publication number
- EP0022990A1 EP0022990A1 EP80103986A EP80103986A EP0022990A1 EP 0022990 A1 EP0022990 A1 EP 0022990A1 EP 80103986 A EP80103986 A EP 80103986A EP 80103986 A EP80103986 A EP 80103986A EP 0022990 A1 EP0022990 A1 EP 0022990A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductor track
- metallic
- plate
- conductor
- approximately
- 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
Links
- 238000005516 engineering process Methods 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims description 82
- 238000000576 coating method Methods 0.000 claims description 9
- 239000003989 dielectric material Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
Definitions
- the invention relates to a balun for the microwave range, such as is used for example in the construction of modulators, namely in the so-called double-balanced modulator, also called a ring modulator.
- Such a modulator consists of two balun and a diode quartet.
- This modulator principle is known from telephony technology, i.e. the low frequency range.
- the implementation of these transformers or an equivalent circuit for the microwave range is difficult, since the line types used in microwave circuits are generally unbalanced and symmetrical transformers with windings cannot be used in the microwave range.
- the invention has for its object to provide a balun for the microwave range, with which modulators and similar electrical assemblies with good properties in terms of noise figure and decoupling can be produced in a simple manner.
- This object is achieved according to the invention in a first embodiment with a balancing transformer using microstrip technology in such a way that on a plate of dielectric material that can be inserted into a metal housing, a first metallic conductor track and on both sides of this conductor track and in parallel to each other two approximately X / 4-long metallic conductor tracks are arranged, which are electrically conductively connected to an approximately X / 4-long metallic conductor track of greater width, which forms a ground line, on the opposite surface of the plate, which in turn is connected in one end region to the metallic housing, and that to the conductor tracks arranged on one side of the first conductor track in its end region is connected in each case a conductor track running perpendicularly to the plate plane.
- the symmetrical lines are routed next to each other in a plane above or below the dielectric plate.
- a further embodiment, in which the symmetrical lines can be routed one above the other in two levels, is constructed in accordance with the invention using microstrip technology in such a way that a first metallic conductor track and on both sides of this conductor track and in on a surface that can be inserted into a metal housing made of dielectric material Parallel to this, two approximately ⁇ / 4-long metallic conductor tracks are arranged, each of which is electrically conductive with an approximately ⁇ / 4-long metallic conductor track forming a ground line on the opposite side connected surface of the plate, which in turn are connected in one end region to the metallic housing, and that to the conductor path arranged on one side of the first conductor path and to the ground line arranged opposite to the second conductor path, one in each of the end region Plane plane perpendicular to these conductor tracks, opposite conductor track is connected on the surfaces of the plate.
- the electrical connection from the approximately X / 4-long conductor tracks on one surface to the ground lines on the opposite surface of the plate is made by means of plated-through holes.
- the first metallic conductor track is connected in an electrically conductive manner to at least one of the approximately ⁇ / 4-long conductor tracks arranged on one side of the first conductor track or else in an insulated manner, depending on whether it is a simple type of balancing device or a compensated balancing device acts.
- a further embodiment according to the invention is the S aui terme ymmetrierübertrager in triplate technology, such that two dielectric plates are provided on each devis'sammlung comprise two extending in the longitudinal direction, separated from one another by a recess metallic coverings and superimposed between their, unmetallized Surfaces include a conductor track running in the longitudinal direction of the plate, and that the conductor track and the metallic coating of the one dielectric plate have the asymmetrical entrance and the metallic coatings of the dielectric plates which are separated from one another by the recess dan form symmetrical output of the transformer.
- the metal coatings lying opposite each other on the outer surfaces of the dielectric plates are advantageously connected to one another in an electrically conductive manner by means of plated-through holes.
- connection points of the metallic coverings are led out laterally in the plane of the superimposed, non-metallized surfaces of the dielectric plates.
- an RF modulator or a similar electrical assembly can be easily constructed.
- Fig. 1 shows a perspective view of a balun, in which the symmetrical lines are carried side by side in one plane.
- the dielectric plate 1 is here and the metal housing 8 receiving the plate 1 is only partially shown.
- the plate 1 made of dielectric material carries on the surface located in the figure an insulated conductor track 2 and on both sides of this conductor track 2 in a parallel position to this two two ⁇ / 4-long conductor tracks 3, 4 and 3a, 4a arranged one behind the other.
- Two approximately X / 4-long conductor tracks 5, 6 (dashed line) of greater width are applied to the area located at the bottom in the figure.
- These conductor tracks 5, 6 are arranged opposite the insulated conductor track 2 and the approximately X / 4-long conductor tracks 3, 3a on the one hand and 4, 4a on the other hand and are electrically conductively connected to these X / 4-long conductor tracks.
- the conductor tracks 3, 3a are connected to the ground line 5 and the conductor tracks 4, 4a to the ground line 6 on the underside of the plate 1. This connection is made by means of plated-through holes 11.
- a conductor track 9, 9a running perpendicular to this is connected, which is in a parallel position on the upper side of the plate.
- the ⁇ / 4-long conductor tracks 5, 6 forming the ground line are connected at their ends 7, 7a to the metallic housing.
- the earth-unbalanced signal is fed to the balancing device at gate I, the ribbon cable 9, 9a carries the earth-symmetrical signal (gate II).
- the ⁇ / 4 ⁇ long conductor tracks 3, 3a, 5 and 4, 4a, 6 together with the metal housing 8 form ribbon cables with the wave resistances Z 1 and Z 2 .
- the conductor track 2 forms a microstrip line with the wide conductor track 5 or 6 (ground line) and a coplanar line with the conductor tracks 3, 3a or 4, 4a.
- This form of line makes it possible to concentrate the electromagnetic field of the earth-unbalanced signal as completely as possible in the dielectric plate and at the same time to create connection points for the symmetrical line 9, 9a. In this way, the symmetrical conduits can be guided next to each other in one level above or below the plate 1 (see Fig. 1) or in two levels one above the other (see Fig. 2). This results in several options for connecting the earth-symmetrical consumer.
- Fig. 2 shows a balun, the basic structure of which corresponds to that shown in Fig. 1.
- the only difference here is that the symmetrical lines are not routed next to each other on one side of the plate, that is to say in one plane, but are guided one above the other in two planes.
- This structure is implemented in such a way that a conductor track 10 running perpendicular to it is connected only to one of the approximately ⁇ / 4-long conductor tracks 3, 4 located on one side of the insulated conductor track 2.
- the second conductor track 10a of the symmetrical line is located on the underside of the dielectric plate, opposite the first conductor track 10.
- the second conductor track 10a is connected perpendicularly to the approximately ⁇ / 4-long conductor track 6 which forms a ground line and which is not the first Conductor 10 connected, about ⁇ / 4-long conductor track 4 is opposite.
- FIG. 3 shows a perspective illustration of an RF modulator which is constructed from two balun transformers according to FIG. 2.
- a second balun of the same construction is added to the balun according to FIG. 2, approximately in the sectional plane.
- the dielectric plate 1 In the end region of the symmetrical ribbon lines 10, 10a, the dielectric plate 1 has a cutout 12 in which the nonlinear elements, a diode quartet, of the modulator are arranged.
- a connection is made from the symmetrical ribbon cable to a connection 13 in the housing 8, which forms the output to an IF preamplifier.
- Gates I and I ' form the inputs of the unbalanced line for the RF signal and the oscillator signal.
- RF modulators and similar electrical assemblies can be constructed which have a low noise figure within a relatively large frequency bandwidth and at the same time have a high level of decoupling between the oscillator gate and the signal gate.
- the circuit is very simple to manufacture. Since the dielectric plate, for example glass-fiber-reinforced Teflon, is only connected to the housing at four points and unevenness in the housing has no influence on the electrical function of the modulator, that is to say the housing has very low accuracy requirements, an inexpensive construction can be used for this.
- the housing for example manufactured as a hot pressed part without major post-processing.
- Fig. 4 shows a balun in triplate technology.
- two plates 15, 16 made of dielectric material are provided, the surface of which is metallized on one side in each case has a recess 19, 20 in such a way that two metal coverings 17, 17 'and 18, 18' are formed.
- the dielectric plates 15, 16 lie on one another with their non-metallized side and enclose a conductor track 21 between them.
- the mutually opposite metallic coatings 17, 18 and 17 ', 18' are connected to one another in an electrically conductive manner, for example by means of plated-through holes 22 in the plates 15, 16 or — metallizations on the edge of the plates, not shown in the figure.
- the asymmetrical line at gate I is formed by the conductor track 21 and one of the ground layers 17 'and 18'.
- the symmetrical signal can be removed, namely between the connection points AB (metal coverings 17-17 'on the dielectric plate 15), the connection points CD (connection points of the ground layer guided into the plane of the conductor track 21 by means of plated-through holes), the connection points EF ( Ground layers 18, 18 'on the dielectric plate 16), the connection points AF or the connection points BE, DE or CF.
- an RF modulator By assembling two symmetry transformers using triplate technology and inserting the corresponding nonlinear elements, an RF modulator can advantageously be constructed in the manner described above for an RF modulator with symmetry transformers using microstrip technology.
Landscapes
- Amplitude Modulation (AREA)
- Waveguides (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Constitution Of High-Frequency Heating (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT80103986T ATE7550T1 (de) | 1979-07-20 | 1980-07-10 | Symmetrieruebertrager in mikrostriptechnik fuer den mikrowellenbereich. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792929522 DE2929522A1 (de) | 1979-07-20 | 1979-07-20 | Symmetrieruebertrager fuer den mikrowellenbereich |
| DE2929522 | 1979-07-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0022990A1 true EP0022990A1 (fr) | 1981-01-28 |
| EP0022990B1 EP0022990B1 (fr) | 1984-05-16 |
Family
ID=6076332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP80103986A Expired EP0022990B1 (fr) | 1979-07-20 | 1980-07-10 | Symétriseur microondes du type microstrip |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4361818A (fr) |
| EP (1) | EP0022990B1 (fr) |
| JP (1) | JPS608644B2 (fr) |
| AT (1) | ATE7550T1 (fr) |
| AU (1) | AU520953B2 (fr) |
| DE (2) | DE2929522A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359782A (en) * | 1981-05-19 | 1982-11-16 | Rockwell International Corporation | Microwave mixer with linking juxtaposed balun port |
| FR2528239A1 (fr) * | 1982-06-08 | 1983-12-09 | Thomson Csf | Melangeur d'ondes electromagnetiques hyperfrequences |
| EP0146086A3 (fr) * | 1983-12-09 | 1987-08-26 | Polska Akademia Nauk Centrum Badan Kosmicznych | Transformateur symétrique-asymétrique à micro-ondes pour mélangeurs et modulateurs |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5819169A (en) * | 1996-05-10 | 1998-10-06 | Northrop Grumman Corporation | High performance mixer structures for monolithic microwave integrated circuits |
| FI103614B1 (fi) * | 1997-03-20 | 1999-07-30 | Nokia Mobile Phones Ltd | Vaiheistus- ja balansointielin |
| CN101341628A (zh) * | 2006-08-02 | 2009-01-07 | 株式会社村田制作所 | 芯片元件 |
| CN103441318B (zh) * | 2013-08-01 | 2016-09-21 | 南京理工大学 | 基于微带线到共面带状线超宽带渐变地巴伦器 |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2812501A (en) * | 1954-03-04 | 1957-11-05 | Sanders Associates Inc | Transmission line |
| US2926317A (en) * | 1954-03-11 | 1960-02-23 | Sanders Associates Inc | Transmission line |
| US3026490A (en) * | 1959-12-28 | 1962-03-20 | Bell Telephone Labor Inc | Microwave coupling arrangements |
| US3093805A (en) * | 1957-07-26 | 1963-06-11 | Osifchin Nicholas | Coaxial transmission line |
| DE1441077A1 (de) * | 1962-07-18 | 1969-02-06 | Rohde & Schwarz | UEbertrager fuer hochfrequente elektromagnetische Wellen zur gegenseitigen Anpassungvon erdsymmetrischen und erdunsymmetrischen Leitungen |
| US3652941A (en) * | 1970-02-24 | 1972-03-28 | Rhg Electronics Lab Inc | Double balanced microwave mixer using balanced microstrip baluns |
| US3772599A (en) * | 1972-04-17 | 1973-11-13 | Rca Corp | Microwave double balanced mixer |
| US3818385A (en) * | 1972-09-21 | 1974-06-18 | Aertech | Hybrid junction and mixer or modulator |
| US3848198A (en) * | 1972-12-14 | 1974-11-12 | Rca Corp | Microwave transmission line and devices using multiple coplanar conductors |
| US4118670A (en) * | 1975-05-08 | 1978-10-03 | Westinghouse Electric Corp. | Image phased and idler frequency controlled mixer formed on an integrated circuit dielectric substrate |
| US4125810A (en) * | 1977-04-08 | 1978-11-14 | Vari-L Company, Inc. | Broadband high frequency baluns and mixer |
-
1979
- 1979-07-20 DE DE19792929522 patent/DE2929522A1/de not_active Withdrawn
-
1980
- 1980-06-23 US US06/162,158 patent/US4361818A/en not_active Expired - Lifetime
- 1980-07-10 AT AT80103986T patent/ATE7550T1/de not_active IP Right Cessation
- 1980-07-10 DE DE8080103986T patent/DE3067833D1/de not_active Expired
- 1980-07-10 EP EP80103986A patent/EP0022990B1/fr not_active Expired
- 1980-07-18 AU AU60621/80A patent/AU520953B2/en not_active Ceased
- 1980-07-18 JP JP55097647A patent/JPS608644B2/ja not_active Expired
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2812501A (en) * | 1954-03-04 | 1957-11-05 | Sanders Associates Inc | Transmission line |
| US2926317A (en) * | 1954-03-11 | 1960-02-23 | Sanders Associates Inc | Transmission line |
| US3093805A (en) * | 1957-07-26 | 1963-06-11 | Osifchin Nicholas | Coaxial transmission line |
| US3026490A (en) * | 1959-12-28 | 1962-03-20 | Bell Telephone Labor Inc | Microwave coupling arrangements |
| DE1441077A1 (de) * | 1962-07-18 | 1969-02-06 | Rohde & Schwarz | UEbertrager fuer hochfrequente elektromagnetische Wellen zur gegenseitigen Anpassungvon erdsymmetrischen und erdunsymmetrischen Leitungen |
| US3652941A (en) * | 1970-02-24 | 1972-03-28 | Rhg Electronics Lab Inc | Double balanced microwave mixer using balanced microstrip baluns |
| US3772599A (en) * | 1972-04-17 | 1973-11-13 | Rca Corp | Microwave double balanced mixer |
| US3818385A (en) * | 1972-09-21 | 1974-06-18 | Aertech | Hybrid junction and mixer or modulator |
| US3848198A (en) * | 1972-12-14 | 1974-11-12 | Rca Corp | Microwave transmission line and devices using multiple coplanar conductors |
| US4118670A (en) * | 1975-05-08 | 1978-10-03 | Westinghouse Electric Corp. | Image phased and idler frequency controlled mixer formed on an integrated circuit dielectric substrate |
| US4125810A (en) * | 1977-04-08 | 1978-11-14 | Vari-L Company, Inc. | Broadband high frequency baluns and mixer |
Non-Patent Citations (2)
| Title |
|---|
| 1979 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM, Digest symposium held on 30 April - 2 May'79 Piscataway, New Jersey, US, M. HOUDART et al.: "Various excitation of coplanar waveguide", Seiten 116-118 * Absatz "CPW to slot line transition" * * |
| IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, Band MTT- 24, Nr. 3, Marz 1976, New York, US, G.J. LAUGHLIN: "A new impedance-matched wide-band balun and magic tee", Seiten 135-141 * Abbildungen 1-11 * * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359782A (en) * | 1981-05-19 | 1982-11-16 | Rockwell International Corporation | Microwave mixer with linking juxtaposed balun port |
| FR2528239A1 (fr) * | 1982-06-08 | 1983-12-09 | Thomson Csf | Melangeur d'ondes electromagnetiques hyperfrequences |
| EP0097075A1 (fr) * | 1982-06-08 | 1983-12-28 | Thomson-Csf | Mélangeur d'ondes électromagnétiques hyperfréquences |
| EP0146086A3 (fr) * | 1983-12-09 | 1987-08-26 | Polska Akademia Nauk Centrum Badan Kosmicznych | Transformateur symétrique-asymétrique à micro-ondes pour mélangeurs et modulateurs |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5620303A (en) | 1981-02-25 |
| ATE7550T1 (de) | 1984-06-15 |
| EP0022990B1 (fr) | 1984-05-16 |
| DE3067833D1 (en) | 1984-06-20 |
| AU6062180A (en) | 1981-02-05 |
| JPS608644B2 (ja) | 1985-03-05 |
| US4361818A (en) | 1982-11-30 |
| DE2929522A1 (de) | 1981-01-29 |
| AU520953B2 (en) | 1982-03-11 |
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