EP1350319B1 - Symmetrierübertrager - Google Patents
Symmetrierübertrager Download PDFInfo
- Publication number
- EP1350319B1 EP1350319B1 EP02711795A EP02711795A EP1350319B1 EP 1350319 B1 EP1350319 B1 EP 1350319B1 EP 02711795 A EP02711795 A EP 02711795A EP 02711795 A EP02711795 A EP 02711795A EP 1350319 B1 EP1350319 B1 EP 1350319B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- loop
- conductor
- balun
- metal part
- sheet
- 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.)
- Expired - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims description 37
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000012966 insertion method Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 5
- 230000009466 transformation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 1
- 101710149812 Pyruvate carboxylase 1 Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002918 waste heat Substances 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
Definitions
- the invention relates to a balun (balun) for transmitting large high frequency power, for example at the symmetrical output of a transistor power amplifier to the transition to an asymmetrical Output line.
- a balun according to the invention can be very simple and inexpensive in printed circuit technology directly manufactured integrated with the rest of the high-frequency circuit become.
- the additional soldered metal sheet part becomes the thermal conductivity of the symmetrical conductor loop so increased that when transferring the High-frequency power completely generates heat loss a heat sink can be derived.
- this additional Metal sheet metal part can be compared to a known in printed circuit technology Balancing transformer, in which the conductor loops only through the thin circuit board layer are formed, the two to three times the high-frequency power can be transmitted.
- a conductor loop can be an inventive Balancing transformer despite its simple and inexpensive Construction up to a transmission power of 150 watts can be operated.
- the principle according to the invention can with all usual in printed circuit technology trained balun be applied at which the unbalanced conductor loop either on the same or on the opposite side of the Printed circuit board is formed.
- the asymmetrical loop as a double loop is trained and thus acts as a 4: 1 transformer.
- a balun according to the invention is everywhere there can be used where higher frequencies between high-frequency circuits Power must be transferred. This is for example at Radio frequency transmitters when merging or distributing High frequency power the case.
- Has been particularly advantageous it turned out to be an inventive Balancing transformer at the output of push-pull transistor power amplifiers to be used, because then particularly compact and simple overall structure of one Power amplifier with unbalanced output results.
- the only figure shows the section of a push-pull transistor power amplifier, the one in printed Circuit technology on a fragmentary representation Printed circuit board 1 is formed and its symmetrical Output with a conductor loop symmetrical to ground M. 2 of a balun is connected.
- This symmetrical conductor loop 2 has the shape of a opposite sides of the annulus two opposite C-shaped loop halves 3 and 4, the one on one side at 5 in one another pass over and a slot on the opposite side 6 form.
- the two opposite and the slot 6 delimiting ends 7 and 8 of the C-shaped loop halves 3 and 4 form the balanced input of the Balun, they're over Transformation capacitors 9 with conductor tracks 10 and 11 electrically connected, with which the terminal lugs of the shown and in the rectangular recess 12th used high-frequency power transistor contact do.
- the input circuit for the not shown Power transistor which preferably also as Symmetry transformer is not shown in the figure shown, also not the other conductor tracks for the Wiring the transistors.
- the connection point 5 of the two loop halves 3 and 4 compared to the symmetrical Input 7, 8 forms the electrically cold ground point, it is via a conductor track 13 with which the conductor loop 2 surrounding ground area M shown only in fragments connected. All conductor tracks (M, 2, 10, 11, 13 etc.) are in known printed circuit technology on the Top of the circuit board 1 as thin metal layers educated.
- the unbalanced output conductor loop the for example as a double loop Resistance transformation is formed in the Embodiment shown on the back of the PCB 1 directly opposite the conductor loop 2 trained and therefore not visible in the figure.
- the Printed circuit board 1 is placed on a heat sink 14, the below the conductor loop 2 or this opposite not visible asymmetrical Conductor loop has a cutout 15.
- Those in the transfer of high High-frequency power in the thickened conductor loop 2, 20 resulting heat, partly from neighboring Capacitors is inserted into the loop evenly distributed through the thickened ring and can over a screw 16 which in a mounting hole 18 one after protruding inside 17 formed and in a Threaded bore 19 can be screwed into the heat sink 14, for Heat sink 14 derived and there, for example in the Cooling elements circulating coolant are degraded.
- a corresponding projection 21 is located on the conductor loop 2 provided with a corresponding mounting hole 22, the latter is plated through and the one on the back of the Printed circuit board 1 formed through this ring Bore 22 lies flat on the in the assembled state Top of the heat sink 14 so that the thermal contact between the conductor loop and the heat sink is reinforced.
- the thickened formation of the symmetrical conductor loop 2, 20 on the top of the circuit board 1 allows that the transformation capacitors 9, via which the High-frequency power from the transistor (connecting tracks 10, 11) passed to the symmetrical input 7, 8 of the transformer be, and possibly another arranged in the gap 6
- Capacitor 23 also with a relatively large area Copper ring 20 can be soldered, so that the Waste heat of such capacitors is dissipated well.
- balun is very simple and inexpensive because the additional copper sheet part 20 like a common component in automatic SMD (Surface Mounted Devices) assembly technology together with the others Components of the transistor circuit on the prepared printed circuit board can be soldered. This is done on the thin copper layer 2 of the conductor loop 2 in a known manner Way, solder paste is applied, then the copper sheet part 20 laid flat on the solder paste and finally the same printed circuit board with the other components in the Hot air oven introduced. Around component 20 during melting to fix the solder paste on the conductor loop 2 the opposite inner edges of the conductor track 2 strip-shaped solder mask 24 applied.
- SMD Surface Mounted Devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microwave Amplifiers (AREA)
- Amplifiers (AREA)
- Coils Or Transformers For Communication (AREA)
Description
Claims (9)
- Symmetrierübertrager, dessen gegen Masse symmetrische Leiterschleife als schleifenförmige Leiterbahn (2) auf der Oberseite einer Leiterplatte (1) ausgebildet ist,
dadurch gekennzeichnet, daß zur Übertragung- großer Hochfrequenzleistung auf der schleifenförmigen Leiterbahn (2) ein der Form der schleifenförmigen Leiterbahn entsprechend schleifenförmig ausgebildetes Metall-Blechteil (20) aufgelötet ist und am elektrisch kalten Massepunkt (5) der symmetrischen Leiterschleife die Verlustwärme abgeleitet wird. - Symmetrierübertrager nach Anspruch 1,
dadurch gekennzeichnet, daß am elektrisch kalten Massepunkt (5) des schleifenförmigen Metall-Blechteiles (20) eine Montagebohrung (18) für eine Metallschraube (16) ausgebildet ist, die in einen auf der Rückseite der Leiterplatte (1) angeordneten Kühlkörper (14) einschraubbar ist. - Symmetrierübertrager nach Anspruch 2,
dadurch gekennzeichnet, daß die Montagebohrung (18) in einem vom schleifenförmigen Metall-Blechteil (20) radial nach innen ragenden Vorsprung (17) ausgebildet ist. - Symmetrierübertrager nach Anspruch 3,
dadurch gekennzeichnet, daß auch an der das Metall-Blechteil (20) aufnehmenden schleifenförmigen Leiterbahn (2) der Leiterplatte (1) ein entsprechender Vorsprung (21) mit einer durchkontaktierten Montagebohrung (22) ausgebildet ist. - Symmetrierübertrager nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Metall-Blechteil (20) aus verzinntem Kupfer besteht. - Symmetrierübertrager nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß am symmetrischen Eingang der Leiterschleife (2, 20) angeordnete Kondensatoren (9, 23) mit dem Metall-Blechteil (20) großflächig verlötet sind. - Symmetrierübertrager nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Symmetrierübertrager in unmittelbarer Nachbarschaft des Ausganges eines Hochfrequenz-Leistungstransistors angeordnet ist und der gegen Masse symmetrische Eingang (7, 8) der symmetrischen Leiterschleife (2, 20) mit dem symmetrischen Ausgang (10, 11) des Verstärkers verbunden ist. - Verfahren zum Herstellen eines Symmetrierübertragers nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß auf einer Leiterplatte (1), auf deren Oberseite in gedruckter Schaltungstechnik die Leiterbahnen für eine Hochfrequenzschaltung, insbesondere eine Transistor-Leistungsverstärker-Schaltung, zusammen mit der schleifenförmigen Leiterbahn (2) für den Symmetrierübertrager ausgebildet sind, an vorbestimmten Lötstellen Lötpaste aufgetragen wird, dann in bekannter automatischer Bestückungstechnik zusammen mit den übrigen Bauelementen das Metall-Blechteil (20) auf die schleifenförmige Leiterbahn (2) aufgebracht und schließlich durch Erwärmen der Lötvorgang durchgeführt wird. - Verfahren nach Anspruch 8,
dadurch gekennzeichnet, daß an den gegenüberliegenden gekrümmten Innenrändern der beiden sich gegenüberstehenden Hälften der schleifenförmigen Leiterbahn (2) zur Fixierung des aufgebrachten Metall-Blechteils (20) während des Lötvorganges auf der Leiterplatte (1) entsprechende Lötstopplack-Streifen (24) aufgebracht werden.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10105696A DE10105696A1 (de) | 2001-02-08 | 2001-02-08 | Symmetrierübertrager |
DE10105696 | 2001-02-08 | ||
PCT/EP2002/000146 WO2002063762A1 (de) | 2001-02-08 | 2002-01-09 | Symmetrierübertrager |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1350319A1 EP1350319A1 (de) | 2003-10-08 |
EP1350319B1 true EP1350319B1 (de) | 2004-05-19 |
Family
ID=7673263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02711795A Expired - Lifetime EP1350319B1 (de) | 2001-02-08 | 2002-01-09 | Symmetrierübertrager |
Country Status (5)
Country | Link |
---|---|
US (1) | US6917254B2 (de) |
EP (1) | EP1350319B1 (de) |
JP (1) | JP4004960B2 (de) |
DE (2) | DE10105696A1 (de) |
WO (1) | WO2002063762A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004022185A1 (de) * | 2004-05-05 | 2005-12-01 | Rohde & Schwarz Gmbh & Co. Kg | Breitbandiger Symmetrierübertrager |
JP4730233B2 (ja) * | 2006-07-11 | 2011-07-20 | 旭硝子株式会社 | 伝送線路変換装置 |
CN101627450B (zh) * | 2007-03-08 | 2013-10-30 | 日本电气株式会社 | 电容元件、印刷布线板、半导体封装以及半导体电路 |
US20100301987A1 (en) * | 2009-05-27 | 2010-12-02 | Stmicroelectronics S.A. | Millimeter wave transformer with a high transformation factor and a low insertion loss |
KR101784850B1 (ko) | 2010-06-11 | 2017-11-06 | 가부시키가이샤 리코 | 화상 형성 장치에서 탈착 가능하게 설치되는 정보 저장 시스템, 탈착 장치 및 토너 용기 |
DE102012106135A1 (de) | 2012-07-09 | 2014-05-22 | Cryoelectra Gmbh | Planarer Symmetrierübertrager mit verbesserter Wärmeabführung |
ITMI20121238A1 (it) | 2012-07-17 | 2014-01-18 | St Microelectronics Srl | Dispositivo trasformatore balun planare |
WO2016099314A1 (en) * | 2014-12-15 | 2016-06-23 | Siemens Research Center Limited Liability Company | A balun transformer with a cooling mechanism |
CN107408748A (zh) * | 2014-12-15 | 2017-11-28 | 西门子公司 | 流体冷却式巴伦变换器 |
CN108270407B (zh) * | 2016-12-30 | 2023-09-05 | 通用电气公司 | 一种平面巴伦及一种多层电路板 |
EP3605842A1 (de) | 2018-08-02 | 2020-02-05 | TRUMPF Huettinger Sp. Z o. o. | Balun und verstärker mit dem balun |
US12061215B2 (en) * | 2022-05-05 | 2024-08-13 | Applied Materials, Inc. | RF measurement from a transmission line sensor |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1938152B1 (de) * | 1969-07-26 | 1971-01-07 | Hirschmann Radiotechnik | Klemmenanordnung mit Symmetrierübertrager |
US4186352A (en) * | 1978-03-23 | 1980-01-29 | Rockwell International Corporation | Signal converter apparatus |
US4193048A (en) * | 1978-06-22 | 1980-03-11 | Rockwell International Corporation | Balun transformer |
GB2084809B (en) * | 1980-10-01 | 1984-01-18 | Communications Patents Ltd | Printed circuit transformers |
FR2652197B1 (fr) * | 1989-09-18 | 1992-09-18 | Motorola Semiconducteurs Borde | Transformateurs du type symetrique-dissymetrique perfectionnes. |
US5917386A (en) * | 1997-03-12 | 1999-06-29 | Zenith Electronics Corporation | Printed circuit transformer hybrids for RF mixers |
US6144276A (en) | 1998-04-02 | 2000-11-07 | Motorola, Inc. | Planar transformer having integrated cooling features |
US6294965B1 (en) * | 1999-03-11 | 2001-09-25 | Anaren Microwave, Inc. | Stripline balun |
-
2001
- 2001-02-08 DE DE10105696A patent/DE10105696A1/de not_active Withdrawn
-
2002
- 2002-01-09 DE DE50200466T patent/DE50200466D1/de not_active Expired - Lifetime
- 2002-01-09 EP EP02711795A patent/EP1350319B1/de not_active Expired - Lifetime
- 2002-01-09 WO PCT/EP2002/000146 patent/WO2002063762A1/de active IP Right Grant
- 2002-01-09 JP JP2002563596A patent/JP4004960B2/ja not_active Expired - Lifetime
- 2002-01-09 US US10/416,835 patent/US6917254B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE10105696A1 (de) | 2002-08-14 |
WO2002063762A1 (de) | 2002-08-15 |
EP1350319A1 (de) | 2003-10-08 |
DE50200466D1 (de) | 2004-06-24 |
US6917254B2 (en) | 2005-07-12 |
US20040080376A1 (en) | 2004-04-29 |
JP4004960B2 (ja) | 2007-11-07 |
JP2004518384A (ja) | 2004-06-17 |
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