EP0795920B1 - Variables Hohlleiter-Dämpfungsglied - Google Patents
Variables Hohlleiter-Dämpfungsglied Download PDFInfo
- Publication number
- EP0795920B1 EP0795920B1 EP96115286A EP96115286A EP0795920B1 EP 0795920 B1 EP0795920 B1 EP 0795920B1 EP 96115286 A EP96115286 A EP 96115286A EP 96115286 A EP96115286 A EP 96115286A EP 0795920 B1 EP0795920 B1 EP 0795920B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide line
- panel
- waveguide
- waveguides
- damping
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/22—Attenuating devices
- H01P1/222—Waveguide attenuators
Definitions
- the present invention is based on a variable waveguide attenuator, according to the preamble of claim 1 as it from US 3 209 288 is known.
- the invention has for its object such Waveguide attenuator to develop so that it becomes possible the damping in two Adjust waveguides at the same time.
- Sub-pronouncements are directed to preferred embodiments of the invention.
- a waveguide attenuator one of which is shown in FIG. 1a Top view and shown in Figure 1b a cross section A-A is made of a damping material Disc 1, which can be moved along a guide line 2 is stored and their opposite edges in two waveguides 3 and 4 running to the side of the pane 1 can be driven in.
- Figure 1b illustrates are in the sides facing the disc 1 (e.g. Broad sides) of the waveguide 3 and 4 slots 5 and 6 through which the disc 1 in the waveguide 3rd and 4 can penetrate.
- each waveguide 3, 4 in approach the guide line 2 at an acute angle becomes now the disc 1 in the direction of the apex of the pushed at an acute angle, so the edge areas of the Disk 1 through the slots 5 and 6 in the waveguide 3 and 4 in.
- the farther the disc reaches the apex of the acute angle is moved the larger it becomes in the Waveguide 3 and 4 penetrating disc area and thus the attenuation in the respective waveguide.
- a Actuator for the longitudinal movement of the Damping disc can e.g. from a guide rail exist in which the disc by means of a knurled screw is slidably mounted.
- Figure 1 has the damping disc 1 with respect to the guide line 2 a symmetrical shape and also the two waveguides 3 and 4 have one with respect to the guide line 2 symmetrical course.
- This symmetrical arrangement is the measure of a change in damping per Disk 1 displacement length unit and also the amount the damping in both waveguides 3 and 4 is the same.
- the shape of the damping disc 1 depends on which one maximum damping amount can be achieved. If like that Figure 1a shows the edges of the damping disc 1 with respect the guide line 2 have the same angle of inclination as that Waveguide 3 and 4, so the largest possible range of Disk can be moved into the waveguide 3 and 4 and accordingly, the greatest damping can be realized.
- the dashed outline shows the position of the damping disc 1 in the event of the greatest adjustable damping.
- the edges of the damping disk 1 are expediently rounded so that the in the waveguide 3 and 4th immersing areas of the disc continuous transitions represent the least possible reflections arise.
- Figure 2 is a waveguide attenuator shown, in which the waveguide 3 and 4 symmetrical are arranged to the guide line 2, the damping disc 1 but an asymmetrical shape with respect to the guide line 2 has. With this arrangement is independent of the Position of the damping disc the difference between the in the two waveguides 3 and 4 set damping same size.
- Both the damping disc is asymmetrical with respect to the Guideline 2 and are also the angle of inclination Waveguide 3 and 4 opposite the guide line 2 different sizes, as shown in Figure 3, so the damping changes per displacement length unit of the Disk 1 in the two waveguides 3 and 4 different be great.
- the waveguide attenuator is the attenuator disc 1 symmetrical with respect to the guide line 2, the two Waveguides 3 and 4 are asymmetrical to Guideline 2. This also allows different Realize damping in the two waveguides 3 and 4.
- damping material from which the disc is made or with which it is coated has an influence on the in effective damping for the individual waveguides.
- the waveguides achieved different attenuations be that the immersed in the two waveguides Areas of the disc different damping materials exhibit.
Landscapes
- Non-Reversible Transmitting Devices (AREA)
- Vibration Prevention Devices (AREA)
Description
Claims (7)
- Variables Hohlleiter-Dämpfungsglied, das eine mit Dämpfungsmaterial versehene Scheibe (1) aufweist, welche durch einen in die Wand eines Hohlleiters eingelassenen Schlitz in den Hohlleiter eintauchbar ist und dafür entlang einer Führungslinie (2) verschiebbar gelagert ist, wobei die Führungslinie (2) und der Hohlleiter (3) in einem spitzen Winkel aufeinander zulaufen, so dass die Scheibe (1) beim Verschieben in Richtung des Scheitelpunkts des spitzen Winkels durch den Schlitz (5) in den Hohlleiter (3) hineinfährt, dadurch gekennzeichnet, dass ein zweiter Hohlleiter (4) ebenfalls in einem spitzen Winkel auf die Führungslinie (2) der Scheibe (1) so zuläuft, dass einander gegenüberliegende Ränder der zwischen den beiden Hohlleitern (3, 4) angeordneten Scheibe (1) beim Verschieben in jeweils einen der Hohlleiter (3, 4) hineinfahren.
- Variables Hohlleiter-Dämpfungsglied nach Anspruch 1, dadurch gekennzeichnet, dass die Scheibe (1) eine bezüglich der Führungslinie (2) symmetrische Form aufweist und auch die beiden Hohlleiter (3, 4) symmetrisch zu der Führungslinie (2) verlaufen.
- Variables Hohlleiter-Dämpfungsglied nach Anspruch 1, dadurch gekennzeichnet, dass die Scheibe (1) bezüglich der Führungslinie (2) eine unsymmetrische Form aufweist, die beiden Hohlleiter (3, 4) aber symmetrisch zu der Führungslinie (2) verlaufen.
- Variables Hohlleiter-Dämpfungsglied nach Anspruch 1, dadurch gekennzeichnet, dass die Scheibe (1) bezüglich der Führungslinie (2) eine symmetrische Form aufweist, die beiden Hohlleiter (3, 4) unsymmetrisch zu der Führungslinie (2) verlaufen.
- Variables Hohlleiter-Dämpfungsglied nach Anspruch 1, dadurch gekennzeichnet, dass die Scheibe (1) bezüglich der Führungslinie (2) eine unsymmetrische Form aufweist, die beiden Hohlleiter (3, 4) aber unsymmetrisch zu der Führungslinie (2) verlaufen.
- Variables Hohlleiter-Dämpfungsglied nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die in die Hohlleiter (3, 4) eindringenden Ränder der Scheibe (1) so abgerundet sind, dass möglichst geringe Reflexionen an der Scheibe (1) auftreten.
- Variables Hohlleiter-Dämpfungsglied nach Anspruch 1, dadurch gekennzeichnet, dass die Scheibe (1) eine solche Formgebung und/oder unterschiedliche Dämpfungsmaterialien aufweist, so dass in den beiden Hohlleitern (3, 4) verschieden starke Dämpfungen einstellbar sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19609567A DE19609567C1 (de) | 1996-03-13 | 1996-03-13 | Variables Hohlleiter-Dämpfungsglied |
DE19609567 | 1996-03-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0795920A1 EP0795920A1 (de) | 1997-09-17 |
EP0795920B1 true EP0795920B1 (de) | 2003-07-09 |
Family
ID=7787980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96115286A Expired - Lifetime EP0795920B1 (de) | 1996-03-13 | 1996-09-24 | Variables Hohlleiter-Dämpfungsglied |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0795920B1 (de) |
DE (2) | DE19609567C1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0306008D0 (en) * | 2003-03-15 | 2003-04-23 | Qinetiq Ltd | Optical device |
CN113904078B (zh) * | 2021-09-29 | 2022-06-24 | 中电科思仪科技股份有限公司 | 一种基于电动控制的波导衰减器及其控制方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3209288A (en) * | 1963-09-23 | 1965-09-28 | North American Aviation Inc | Attenuator with constant phase shift effected by the compensatory insertion and removal of dielectric material |
DE1766228A1 (de) * | 1968-04-22 | 1971-06-24 | Siemens Ag | Hochfrequenzmessanordnung |
-
1996
- 1996-03-13 DE DE19609567A patent/DE19609567C1/de not_active Expired - Fee Related
- 1996-09-24 EP EP96115286A patent/EP0795920B1/de not_active Expired - Lifetime
- 1996-09-24 DE DE59610591T patent/DE59610591D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0795920A1 (de) | 1997-09-17 |
DE19609567C1 (de) | 1997-07-10 |
DE59610591D1 (de) | 2003-08-14 |
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