DE10336720B4 - Optimal resonator coupling to microwave transistors in broadband oscillators - Google Patents
Optimal resonator coupling to microwave transistors in broadband oscillators Download PDFInfo
- Publication number
- DE10336720B4 DE10336720B4 DE10336720A DE10336720A DE10336720B4 DE 10336720 B4 DE10336720 B4 DE 10336720B4 DE 10336720 A DE10336720 A DE 10336720A DE 10336720 A DE10336720 A DE 10336720A DE 10336720 B4 DE10336720 B4 DE 10336720B4
- Authority
- DE
- Germany
- Prior art keywords
- transistor
- resonant circuit
- circuit
- emitter
- led out
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
- H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
- H03B5/1243—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
Oszillatorschaltung mit einem angezapften Schwingkreis und einem Transistor (T) als Verstärkerelement, dadurch gekennzeichnet, dass eine der Elektroden des Transistors auf zwei Gehäuseanschlüssen (1, 2) herausgeführt und der Schwingkreis am Ort der Anzapfung (12) zur Ankopplung an den Transistor aufgetrennt ist und mit jeweils einem der beiden so entstehenden Anschlüsse (13, 14) mit der doppelt herausgeführten Transistorelektrode verbunden ist, so dass die ansonsten parasitären Bonddrahtinduktivitäten (3, 4) der doppelt herausgeführten Elektrode zu Bestandteilen des Schwingkreises werden.oscillator circuit with a tapped resonant circuit and a transistor (T) as Amplifier element, characterized in that one of the electrodes of the transistor on two housing connections (1, 2) led out and the resonant circuit at the location of the tap (12) for coupling the transistor is disconnected and with each one of the two resulting connections (13, 14) connected to the doubly led out transistor electrode is such that the otherwise parasitic bonding wire inductances (3, 4) of the doubly led out Electrode become components of the resonant circuit.
Description
Problembeschreibung, Stand der TechnikProblem description, stand of the technique
Moderne
Mikrowellentransistoren weisen in der Regel zwei Emitter-/Sourceanschlüsse auf
(
Generell
ist die geschickte Nutzung doppelt herausgeführter Transistorelektroden
auch beim Bau von Oszillatoren bekannt: Z.B.
Auch
der kreative Umgang mit zunächst
störenden
Anschlussinduktivitäten
(Bonddrähte)
ist bekannt. Schmalbandig lässt
sich eine solche Induktivität
(wie überhaupt
jede parasitäre
Reaktanz) stets durch ein Transformationsglied beseitigen (z.B.
Problematisch
kann die Existenz von zwei Emitteranschlüssen dann werden, wenn der
Transistor nicht in Emitterschaltung betrieben werden soll. Die
durch die Lötflächen der
Emitter entstehende Kapazität
(
Insbesondere
hat sich der zweite Emitteranschluss beim Bau breitbandiger Oszillatoren
im Frequenzbereich oberhalb von 2GHz als nachteilig erwiesen.
- – der Resonator verstimmt wird,
- – die Abstimmbarkeit des Resonators eingeschränkt wird,
- – der Schwingbereich des Oszillators eingeschränkt wird,
- – parasitäre Resonanzen auftreten können.
- - the resonator is detuned,
- The tunability of the resonator is restricted,
- The oscillation range of the oscillator is restricted,
- - parasitic resonances can occur.
Darüber hinaus
ist der Transistor über
nur einen Bonddraht (
Beschreibung der Erfindungdescription the invention
Die
Zeichnungen
Das
Einbringen der zunächst
parasitären Elemente
der Bonddrahtinduktivitäten
und der Lötflächenkapazitäten als
reguläre
Bestandteile der Resonatorstruktur sorgt für eine optimale Ankopplung
des Transistors, der jetzt direkt mit seinem „inneren" Emitter (Ek in
Beschreibung der Zeichnungen:Description of the drawings:
Literatur:Literature:
- [1] Papp, J.C., „YIG-Tuned FET Oscillator Design 8–18GHz", Watkins-Johnson Company Tech Notes, Vol. 6, Sep./Oct. 1979[1] Papp, J.C., "YIG-Tuned FET Oscillator 8-18GHz design, "Watkins-Johnson Company Tech Notes, Vol. 6, Sep./Oct. 1979
- [2] Kitchen, John, „Octave Bandwidth Varactor-Tuned Oscillators", Microwave Journal, May 1987, S. 347, 348, 350, 352, 353[2] Kitchen, John, "Octave Bandwidth Varactor-Tuned Oscillators ", Microwave Journal, May 1987, p. 347, 348, 350, 352, 353
- [3] Zinke, O., Brunswig, H., „Hochfrequenztechnik", Bd. 1, 6. Auflage, 2000, Springer Verlag[3] Zinke, O., Brunswig, H., "Hochfrequenztechnik", vol. 1, 6th edition, 2000, Springer Verlag
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10336720A DE10336720B4 (en) | 2003-08-11 | 2003-08-11 | Optimal resonator coupling to microwave transistors in broadband oscillators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10336720A DE10336720B4 (en) | 2003-08-11 | 2003-08-11 | Optimal resonator coupling to microwave transistors in broadband oscillators |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10336720A1 DE10336720A1 (en) | 2005-04-07 |
DE10336720B4 true DE10336720B4 (en) | 2007-07-12 |
Family
ID=34258151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10336720A Expired - Lifetime DE10336720B4 (en) | 2003-08-11 | 2003-08-11 | Optimal resonator coupling to microwave transistors in broadband oscillators |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10336720B4 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2637360A1 (en) * | 1976-08-19 | 1978-02-23 | Siemens Ag | GHZ RF transistor oscillator for carrier waves - has common collector transistor with emitter feedback and coaxial resonator |
US4990865A (en) * | 1989-03-15 | 1991-02-05 | Alcatel N.V. | Transistor microwave oscillator having adjustable zone of potential instability |
DE3781090T2 (en) * | 1986-10-27 | 1992-12-24 | Thomson Csf | VOLTAGE CONTROLLED MICROWAVE TRANSISTOROSCILLATOR AND WIDE-BAND MICROWAVE GENERATOR CONTAINING SUCH OSCILLATORS. |
DE69231115T2 (en) * | 1991-07-23 | 2001-02-15 | Nec Corp | Field effect transistor and high frequency circuits containing this transistor |
DE10056943C1 (en) * | 2000-11-17 | 2002-04-11 | Infineon Technologies Ag | Oscillator circuit has inductances in form of bonded wires connected to contact points connected to circuit nodes and to bearer to which rear surface of circuit board is attached |
DE10246103A1 (en) * | 2001-10-03 | 2003-07-10 | Murata Manufacturing Co | High frequency oscillation circuit, high frequency module and communication device |
-
2003
- 2003-08-11 DE DE10336720A patent/DE10336720B4/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2637360A1 (en) * | 1976-08-19 | 1978-02-23 | Siemens Ag | GHZ RF transistor oscillator for carrier waves - has common collector transistor with emitter feedback and coaxial resonator |
DE3781090T2 (en) * | 1986-10-27 | 1992-12-24 | Thomson Csf | VOLTAGE CONTROLLED MICROWAVE TRANSISTOROSCILLATOR AND WIDE-BAND MICROWAVE GENERATOR CONTAINING SUCH OSCILLATORS. |
US4990865A (en) * | 1989-03-15 | 1991-02-05 | Alcatel N.V. | Transistor microwave oscillator having adjustable zone of potential instability |
DE69231115T2 (en) * | 1991-07-23 | 2001-02-15 | Nec Corp | Field effect transistor and high frequency circuits containing this transistor |
DE10056943C1 (en) * | 2000-11-17 | 2002-04-11 | Infineon Technologies Ag | Oscillator circuit has inductances in form of bonded wires connected to contact points connected to circuit nodes and to bearer to which rear surface of circuit board is attached |
DE10246103A1 (en) * | 2001-10-03 | 2003-07-10 | Murata Manufacturing Co | High frequency oscillation circuit, high frequency module and communication device |
Also Published As
Publication number | Publication date |
---|---|
DE10336720A1 (en) | 2005-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8122 | Nonbinding interest in granting licences declared | ||
8120 | Willingness to grant licences paragraph 23 | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ROHDE & SCHWARZ GMBH & CO. KG, 81671 MUENCHEN, DE |
|
8381 | Inventor (new situation) |
Inventor name: GRONEFELD, ANDREAS, DIPL.-ING., 45701 HERTEN, DE |
|
8381 | Inventor (new situation) |
Inventor name: GRONEFELD, ANDREAS, DR.-ING., 45701 HERTEN, DE |
|
R071 | Expiry of right |