EP1310010A2 - Mehrpoliges kaskadierendes quadruplet-bandpassfilter auf der basis dielektrischer dual-mode-resonatoren - Google Patents
Mehrpoliges kaskadierendes quadruplet-bandpassfilter auf der basis dielektrischer dual-mode-resonatorenInfo
- Publication number
- EP1310010A2 EP1310010A2 EP01984279A EP01984279A EP1310010A2 EP 1310010 A2 EP1310010 A2 EP 1310010A2 EP 01984279 A EP01984279 A EP 01984279A EP 01984279 A EP01984279 A EP 01984279A EP 1310010 A2 EP1310010 A2 EP 1310010A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- dual
- mode
- coupling
- resonators
- mode resonators
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
- H01P1/2084—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with dielectric resonators
- H01P1/2086—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with dielectric resonators multimode
Definitions
- the present invention relates to a multipole bandpass filter based on a group of dielectric dual-mode resonators which are arranged in a metal housing and are coupled to one another.
- Dielectric dual-mode resonators are known from the prior art, the z. B. can be used in communication satellites for channel separation. Coupling dual-mode resonators without greatly influencing quality is difficult.
- An axial arrangement of cylindrical dielectric dual-mode resonators is known, in which the coupling between the individual resonator chambers is achieved by means of cross-shaped diaphragms. Relatively high high-frequency currents flow in the area of the diaphragms, which greatly impair the filter quality that can be achieved (US Patent 4,489,293).
- the object of the present invention is therefore to provide a design for multipole bandpass filters with which a coupling of any number of dual-mode resonator pairs (quadruplets) is possible while maintaining high filter quality.
- metal walls in the metal housing effect the coupling between the dual-mode resonators in such a way that on the one hand there is a positive forward coupling between adjacent resonator pairs, on the other hand there is a positive and a negative coupling within each resonator pair.
- pairs of finite transmission zero lines can be achieved, which are arranged largely symmetrically around the passband center.
- 2 shows a schematic top view of an eight-pole filter with four dielectric dual-mode resonators
- 3 shows a schematic top view of a twelve-pole, cascaded quadruplet filter with six dielectric dual-mode resonators
- 4 shows a schematic top view of a sixteen-pole, cascaded quadruplet filter with eight dielectric dual-mode resonators.
- Metal walls 2 are arranged in a metal housing 1.
- the metal walls 2 divide the space delimited by the metal housing 1 into more or less delimited areas.
- a dielectric dual-mode resonator 3 is arranged in each of these regions.
- the metal housing 1 also has a base plate 1.1, from which each dual-mode resonator 3 is kept at a distance by a spacer 4.
- the metal walls 2 form coupling gaps 2.1 and 2.2 between the individual dual-mode resonators 3.
- the dual-mode resonators 3 are arranged one behind the other or next to one another in a predetermined sequence or cascade. Two dual-mode resonators 3 in succession in the cascade form a quadruplet. 2, the dual-mode resonators 3 with the mode numbers 1 to 4 (M1, M2, M3, M4) form a first quadruplet and the dual-mode resonators with the mode numbers 5 to 8 (M5, M6, M7 , M8) another, second quadruplet.
- Any dual mode Resonator 3 comprises a dual-mode coupler 6 and a dual-mode tuner 7.
- the dual-mode coupler 6 and the dual-mode tuner 7 are introduced from the base plate 1.1.
- Actuators 8 are arranged in the coupling gaps 2.1, with the aid of which the coupling strength between the resonators 3 can be set.
- the metal walls 2 serve to limit the couplings between the resonators 3.
- the metal walls 2 thus form two coupling gaps 2.1 between two dual-mode resonators 3 of a quadruplet which follow one another in the predetermined sequence or cascade.
- the metal walls form a single coupling gap 2.2 between two dual-mode resonators 3 of different quadruplets which follow one another in the predetermined sequence.
- Fig. 3 and in Fig. 4 two embodiments are shown, which have the same coupling principle of the embodiment described in Fig. 2, they differ only in that in Fig. 3, six dual-mode resonators 3 are coupled together and in 4 even eight dual-mode resonators 3.
- the output antenna 5b is connected to the last mode 12 ml 2 in the embodiment shown in FIG. 3 and to the last mode 16 ml 6 in the embodiment shown in FIG. 4.
- FIG. 1 shows a typical characteristic curve for a twelve-pole cascading quadruplet filter, which is formed from three cascading quadruplets. There are three finite zero transmission lines on each side of the passband.
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Networks Using Active Elements (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10034338A DE10034338C2 (de) | 2000-07-14 | 2000-07-14 | Mehrpoliges kaskadierendes Quardrupel-Bandpaßfilter auf der Basis dielektrischer Dual-Mode-Resonatoren |
| DE10034338 | 2000-07-14 | ||
| PCT/DE2001/002382 WO2002007250A2 (de) | 2000-07-14 | 2001-06-27 | Mehrpoliges kaskadierendes quadruplet-bandpassfilter auf der basis dielektrischer dual-mode-resonatoren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1310010A2 true EP1310010A2 (de) | 2003-05-14 |
| EP1310010B1 EP1310010B1 (de) | 2005-04-06 |
Family
ID=7648958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01984279A Expired - Lifetime EP1310010B1 (de) | 2000-07-14 | 2001-06-27 | Mehrpoliges kaskadierendes quadruplet-bandpassfilter auf der basis dielektrischer dual-mode-resonatoren |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20040041667A1 (de) |
| EP (1) | EP1310010B1 (de) |
| AT (1) | ATE292847T1 (de) |
| DE (2) | DE10034338C2 (de) |
| WO (1) | WO2002007250A2 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008516922A (ja) * | 2004-10-15 | 2008-05-22 | グラクソ グループ リミテッド | ヒスタミン受容体リガンドとしてのピロリジン誘導体 |
| DE102007027371A1 (de) * | 2007-06-11 | 2008-12-18 | Cognis Oleochemicals Gmbh | Verfahren zur Herstellung einer Verbindung aufweisend mindestens eine Ester-Gruppe |
| US9190705B2 (en) * | 2012-03-26 | 2015-11-17 | The Chinese University Of Hong Kong | Dual mode dielectric resonator filter having plural holes formed therein for receiving tuning and coupling screws |
| CN106129561B (zh) * | 2016-06-03 | 2018-12-07 | 南通大学 | 双频带紧凑型高带外抑制滤波器 |
| CN106654476B (zh) * | 2017-01-12 | 2020-02-18 | 华南理工大学 | 一种四模介质带通滤波器 |
| CN115425375B (zh) * | 2022-08-19 | 2023-07-18 | 中国电子科技集团公司第二十九研究所 | 一种带通滤波器及其小型化cq拓扑结构 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4489293A (en) * | 1981-05-11 | 1984-12-18 | Ford Aerospace & Communications Corporation | Miniature dual-mode, dielectric-loaded cavity filter |
| CA1194160A (en) * | 1984-05-28 | 1985-09-24 | Wai-Cheung Tang | Planar dielectric resonator dual-mode filter |
| CA1207040A (en) * | 1985-01-14 | 1986-07-02 | Joseph Sferrazza | Triple-mode dielectric loaded cascaded cavity bandpass filters |
| CA2048404C (en) * | 1991-08-02 | 1993-04-13 | Raafat R. Mansour | Dual-mode filters using dielectric resonators with apertures |
| US5841330A (en) * | 1995-03-23 | 1998-11-24 | Bartley Machines & Manufacturing | Series coupled filters where the first filter is a dielectric resonator filter with cross-coupling |
| US5805033A (en) * | 1996-02-26 | 1998-09-08 | Allen Telecom Inc. | Dielectric resonator loaded cavity filter coupling mechanisms |
| DE19617698C1 (de) * | 1996-05-03 | 1997-10-16 | Forschungszentrum Juelich Gmbh | Dual-mode-Zweipolfilter |
| DE19824997C2 (de) * | 1998-06-05 | 2003-01-09 | Forschungszentrum Juelich Gmbh | Mehrpol-Bandpaßfilter mit elliptischer Filtercharakteristik |
-
2000
- 2000-07-14 DE DE10034338A patent/DE10034338C2/de not_active Expired - Fee Related
-
2001
- 2001-06-27 AT AT01984279T patent/ATE292847T1/de not_active IP Right Cessation
- 2001-06-27 EP EP01984279A patent/EP1310010B1/de not_active Expired - Lifetime
- 2001-06-27 US US10/332,671 patent/US20040041667A1/en not_active Abandoned
- 2001-06-27 WO PCT/DE2001/002382 patent/WO2002007250A2/de not_active Ceased
- 2001-06-27 DE DE50105848T patent/DE50105848D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0207250A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10034338C2 (de) | 2002-06-20 |
| US20040041667A1 (en) | 2004-03-04 |
| WO2002007250A2 (de) | 2002-01-24 |
| DE50105848D1 (de) | 2005-05-12 |
| WO2002007250A3 (de) | 2002-06-27 |
| EP1310010B1 (de) | 2005-04-06 |
| ATE292847T1 (de) | 2005-04-15 |
| DE10034338A1 (de) | 2002-01-31 |
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