CN1090828C - HF stripline resonator - Google Patents
HF stripline resonator Download PDFInfo
- Publication number
- CN1090828C CN1090828C CN95194866A CN95194866A CN1090828C CN 1090828 C CN1090828 C CN 1090828C CN 95194866 A CN95194866 A CN 95194866A CN 95194866 A CN95194866 A CN 95194866A CN 1090828 C CN1090828 C CN 1090828C
- Authority
- CN
- China
- Prior art keywords
- stripline
- conductor
- stripline resonator
- resonator
- distance
- 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 - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/08—Strip line resonators
- H01P7/082—Microstripline resonators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/08—Strip line resonators
- H01P7/084—Triplate line resonators
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Electroluminescent Light Sources (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
In order to compensate for changes in the resonant frequency of the resonator arising from variations in the distance between the reference distance (dS) and an actual distance (dS +- DELTA dS) in HF stripline resonators with a stripline arranged at a reference distance (dS) from a metal conductor (11), the stripline (10) is curved. The curvature induces eddy currents in the conductor (11) which reduce the inductance of the HF stripline resonator. The shorter/longer the distance between the stripline and the metal conductor, the smaller/greater the inductance. As the shortening/lengthening of the distance between two conductors also increases/reduces the capacitance of the HF stripline, however, with the appropriate dimensions of the curved stripline, the two effects cancel each other out and the frequency of the HF stripline resonator is virtually stable with the aforementioned distance variations.
Description
Invention field
The present invention relates to HF stripline Resonator.
HF stripline Resonator is the oscillation circuit that need use the tape conductor technology to set up for special purpose.Main application fields is for example to propagate the radio communication technology of RI radio intelligence in radio wave band.The radio communication technology branch that covers radio wave band has for example radiotechnics, TV tech, mobile radio technology and communication technology of satellite.
Background technology is introduced
Should have some to be used for the mobile radio system that information is transmitted in the top-priority mobile communication technology below, there be the difference of following several respects in this information transmission (being the communication technology), that is:
(a) application (the mobile wireless power technology of official or unofficial mobile wireless power technology),
(b) transmission method (protect and get by FDMA=frequency division multiple access; The TDMA=time-division multiple access (TDMA); CDMA=demal multiple access; ),
(c) coverage of Chuan Boing (from several meters to several kilometers),
(d) for propagating the frequency range (800-900MHz of usefulness; 1800-1900MHz).
Relevant therewith example is to have official GSM (global system for mobile communications) mobile radio system (dedicated mobile communications subsystem or the global system for mobile communications of frequency range between 800-900MHz of propagating several kilometers of coverages and communication, reference: spectroscopic technique (Informatik Spektrum), Berlin Springer publishing house, Jg.14,1991, No.3, P137 ~ 152, A.Mann: " Der GSM-Standard-Grundlage fur digitaleeuropaische Mobilfunknetze ") and have unofficial DECT (European digital cord-less) cordless system (European digital cord-less communication, the reference of frequency range between 1880-1900MHz of propagating coverage hundreds of rice and communication; Nachrichtentechnik Elektronik, Berlin, Jg.42, NO.1,1-2/1992, P23-29, U.Pilger: " struktur desDECT-standards "); Both have utilized high efficiency TDMA (time-division multiple access (TDMA)) transmission method.
The possibility that HF stripline Resonator comes into operation in mobile radio system is described as follows.Must and handle the high-frequency signal in the wireless device with transmitter-receiver structure in the DECT cordless system that under simple scenario, constitutes by base station with at least one movable part.
Fig. 1 has for example provided (the printed matter: German communication technology magazine that everybody is familiar with; The 46th volume; The 10th phase; The 754th～757 page; One " Architekturen fur ein DECT-Sende-und Empfangsteil:Ein Vergleich ") according to having the principle structure of the DECT wireless device FKT of twice frequency conversion superhet principle.For this frequency translation frequency mixer MIS that packed into, it is by making useful signal (transmitting or received signal) raising frequency mixing or frequency reducing mixing (the useful signal frequency is heightened or turned down) with oscillator signal mixed frequency.In order to obtain oscillator signal, in wireless device FKT, use the ordinary oscillator OSZ1 of resonator, OSZ2 with corresponding development for this reason.Therefore at first use HF stripline Resonator as resonator.
Fig. 2 has for example provided the structure as 1/4 wave resonance chamber of shortening HF stripline Resonator 1 that constitute, that everybody is familiar with.1/4 wave resonance chamber is placed on the printed circuit board (PCB) 2 that for example has substrate thickness ds (predetermined distance).1/4 wave resonance chamber has a tape conductor 10, and the latter directly connects by the closing of contact and at one end goes up, and the other end through capacitor 3 with as earthy metallic conductor 11-of tape conductor 10 under current situation, be metallic conduction face-be connected.Therefore tape conductor 10 and metallic conductor 11 are placed on respect to one another of the printed circuit board (PCB).Strip-shaped conductive body 10 has length l st and width bst, and the resonance frequency in 1/4 wave resonance chamber 1 is by the substrate thickness ds and the DIELECTRIC CONSTANT of the electric capacity of capacitor 3, contact DK closure state, printed circuit board (PCB) 2
rCommon decision.The tape conductor resonant cavity is at first adjusted resonance frequency by capacitor 3, and next shortens the length l st of resonant cavity.
According to the relation between the resonance frequency of tape conductor resonant cavity 1 and the parameter that provides previously, the resonance frequency of actual tape conductor resonant cavity 1 will depend on that also tape conductor resonant cavity 1 makes levels of precision, and promptly manufacturing tolerance is much.Spacing tolerance (difference of prescribed distance ds and actual pitch ds ± Δ ds) between substrate thickness ds tolerance (Δ ds) or (fully general) tape conductor 10 and the metallic conductor 11 proves very and is a problem.
This problem has further enlarged when above-mentioned tape conductor resonant cavity 1 is surrounded by metal cap or cover cap, and this metallic conductor can not be dropped in a determining deviation of tape conductor by the manufacturing process restriction equally also in accordance with regulations.
From patent DE-34 28 824 A1 and GB-2 222 312A, have the HF stripline Resonator that curved shape is placed in the tape conductor on the carrier and be familiar with by everybody, the form of the tape conductor of this structure is the size that is used for reducing HF stripline Resonator.
The general introduction of invention scheme
Goal of the invention as the present invention basis task is: propose a kind of HF stripline Resonator, can compensate the resonant cavity change of resonance frequency that occurs in the HF stripline Resonator structure by the tolerance that is subjected to the manufacturing process restriction and influences " tape conductor-metallic conductor " spacing.
This purpose is solved by technical scheme of the present invention.
According to the present invention, a kind of HF stripline Resonator that is placed in from the tape conductor of the curved shape of conductor predetermined distance that has is provided, it is characterized in that, the bending of tape conductor is like this design, by big or small substantially identical and the resonance frequency shift that inductance that direction is opposite causes that changed resonance frequency shift canceling that electric capacity causes of the spacing between prescribed distance and the actual pitch.
Preferably in above-mentioned HF stripline Resonator, described tape conductor and described conductor are placed in printed circuit board (PCB) both sides respect to one another.
Preferably, described printed circuit board (PCB) is conducted electricity cover cap and is surrounded.
Preferably, described conductor constitutes as the earthy metal covering of tape conductor.
By no longer resembling the tape conductor that extends the banded resonant cavity of high frequency the state of the art, but make it be curve form, then parallel with tape conductor mainly with the metallic conductor internal induction eddy current of metal level form.This eddy current causes that the HF stripline Resonator inductance descends.The spacing of tape conductor and metallic conductor is more little/and big, then this inductance is more little/and big.But because second conductor close/electric capacity of HF stripline Resonator also increases/reduces when zooming out, when the size of the crooked tape conductor of appropriate designs, above-mentioned two effects have been offset, and the spacing variation of HF stripline Resonator to stipulating, frequency is stable substantially.
The invention still further relates to according to the application of frequency band shape conductor resonant cavity of the present invention in Wireless Telecom Equipment, the application in the DECT cordless telephone, and the application in the GSM mobile radiotelephone.
Specific embodiments of the invention are described with reference to the accompanying drawings.
The accompanying drawing summary
The basis that Fig. 1 has provided prior art has the principle structure of the DECT wireless device FKT of twice frequency conversion superhet principle.
Fig. 2 has provided for example structure of the HF stripline Resonator of the 1/4 wave resonance chamber formation of conduct shortening.
Fig. 3 has provided the HF stripline Resonator 1a of improvement from the HF stripline Resonator 1 according to Fig. 2.
Preferred embodiment is described
Fig. 3 has described specific embodiments of the invention.
Fig. 3 has provided the HF stripline Resonator 1a of improvement from the HF stripline Resonator 1 according to Fig. 2, its tape conductor has crooked shape.At this moment Wan Qu shape is to select like this, when spacing occurring changing between tape conductor 10 and metallic conductor 11 (difference of given size ds and actual size ds ± Δ ds), the resonance frequency shift that electric capacity causes under high frequency tape conductor resonator 1a situation but resonance frequency shift that inductance that direction opposite cause identical by general size compensated.
Claims (7)
1. has the HF stripline Resonator that is placed in from the tape conductor (10) of the curved shape of conductor (11) predetermined distance (ds), it is characterized in that, the bending of tape conductor (10) is like this design, the resonance frequency shift canceling that causes by the variation of the spacing between prescribed distance (ds) and the actual pitch (ds ± Δ ds) electric capacity big or small substantially identical and resonance frequency shift that inductance that direction is opposite causes.
2. HF stripline Resonator according to claim 1 is characterized in that, tape conductor (10) and conductor (11) are placed in printed circuit board (PCB) (2) both sides respect to one another.
3. HF stripline Resonator according to claim 2 is characterized in that, printed circuit board (PCB) (2) is conducted electricity cover cap and surrounds.
4. according to claim 2 or 3 described HF stripline Resonators, it is characterized in that conductor (11) constitutes as the earthy metal covering of tape conductor (10).
5. according to the application of the described HF stripline Resonator of one of claim 1 to 4 in Wireless Telecom Equipment.
6. according to the application of the described HF stripline Resonator of one of claim 1 to 4 in the DECT cordless telephone.
7. according to the application of the described HF stripline Resonator of one of claim 1 to 4 in the GSM mobile radiotelephone.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4430988A DE4430988A1 (en) | 1994-08-31 | 1994-08-31 | HF stripline resonator |
| DEP4430988.0 | 1994-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1157060A CN1157060A (en) | 1997-08-13 |
| CN1090828C true CN1090828C (en) | 2002-09-11 |
Family
ID=6527063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95194866A Expired - Fee Related CN1090828C (en) | 1994-08-31 | 1995-08-23 | HF stripline resonator |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0777919B1 (en) |
| JP (1) | JP2814747B2 (en) |
| CN (1) | CN1090828C (en) |
| AT (1) | ATE167004T1 (en) |
| AU (1) | AU684994B2 (en) |
| CA (1) | CA2198614C (en) |
| DE (2) | DE4430988A1 (en) |
| ES (1) | ES2117436T3 (en) |
| FI (1) | FI970830A (en) |
| WO (1) | WO1996007214A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100285018B1 (en) * | 1993-08-27 | 2001-03-15 | 무라따 미치히로 | High frequency electromagnetic field coupling type thin film laminated electrode |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749963A (en) * | 1985-12-11 | 1988-06-07 | Matsushita Electric Industrial Co., Ltd. | Oscillator having stripline loop resonator |
| US5055809A (en) * | 1988-08-04 | 1991-10-08 | Matsushita Electric Industrial Co., Ltd. | Resonator and a filter including the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2118309A1 (en) * | 1971-04-15 | 1972-10-19 | Siemens Ag | Method for lowering the resonance frequency of microstrip resonators |
| DE3424824A1 (en) * | 1984-07-06 | 1986-01-16 | Telettra Telefonia Elettronica e Radio S.p.A., Mailand/Milano | Resonant circuit for a circuit for extraction of signals at clock frequency from a data flow |
| JPH0575316A (en) * | 1991-09-10 | 1993-03-26 | Fujitsu Ltd | Ring resonator |
-
1994
- 1994-08-31 DE DE4430988A patent/DE4430988A1/en not_active Withdrawn
-
1995
- 1995-08-23 WO PCT/DE1995/001115 patent/WO1996007214A1/en active IP Right Grant
- 1995-08-23 AT AT95928965T patent/ATE167004T1/en not_active IP Right Cessation
- 1995-08-23 JP JP8508406A patent/JP2814747B2/en not_active Expired - Fee Related
- 1995-08-23 DE DE59502431T patent/DE59502431D1/en not_active Expired - Fee Related
- 1995-08-23 EP EP95928965A patent/EP0777919B1/en not_active Expired - Lifetime
- 1995-08-23 AU AU32523/95A patent/AU684994B2/en not_active Ceased
- 1995-08-23 CA CA002198614A patent/CA2198614C/en not_active Expired - Fee Related
- 1995-08-23 ES ES95928965T patent/ES2117436T3/en not_active Expired - Lifetime
- 1995-08-23 CN CN95194866A patent/CN1090828C/en not_active Expired - Fee Related
-
1997
- 1997-02-27 FI FI970830A patent/FI970830A/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749963A (en) * | 1985-12-11 | 1988-06-07 | Matsushita Electric Industrial Co., Ltd. | Oscillator having stripline loop resonator |
| US5055809A (en) * | 1988-08-04 | 1991-10-08 | Matsushita Electric Industrial Co., Ltd. | Resonator and a filter including the same |
Non-Patent Citations (3)
| Title |
|---|
| ELECTRONICS LETTERS VOL.7 NO.26 1971.12.1 I.WOLFF ET AL."MICROSTRIP RING RESONATOR AND DISPERSION MEASUREMENT ON MICROSTRIP LINES" * |
| IEEE PROCEEDINGSH ANTENNAS&PROPAGATION VOL.137 ON.3 1990.6.1 S.H.AL-CHARCHAFCHI ET AL."FREQUENCY SPLITTING IN MICROSTRIP RHOMBIC RESONATORS" * |
| IEEE TRANSACTIONS ON MICROWAVE THERY AND TECHNIQUES VOL.26 N 1978.10.1 S.G.PINTZOS ET AL."A SIMPLE METHOD FOR COMPUTING THE RESONANT FREQUENCIES OF MICROSRIP RING RESONATO * |
Also Published As
| Publication number | Publication date |
|---|---|
| FI970830A0 (en) | 1997-02-27 |
| AU684994B2 (en) | 1998-01-08 |
| FI970830A (en) | 1997-02-27 |
| CA2198614C (en) | 2000-04-18 |
| DE59502431D1 (en) | 1998-07-09 |
| AU3252395A (en) | 1996-03-22 |
| CN1157060A (en) | 1997-08-13 |
| ES2117436T3 (en) | 1998-08-01 |
| CA2198614A1 (en) | 1996-03-07 |
| JPH09508779A (en) | 1997-09-02 |
| DE4430988A1 (en) | 1996-03-21 |
| JP2814747B2 (en) | 1998-10-27 |
| WO1996007214A1 (en) | 1996-03-07 |
| ATE167004T1 (en) | 1998-06-15 |
| EP0777919A1 (en) | 1997-06-11 |
| EP0777919B1 (en) | 1998-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |