CALIBRATION DEVICE

Abstract

The invention relates to a calibration array (10; 50) for calibrating a network analyzer, the array having multiple calibration points (18, 20, 22, 24) for direct or indirect connection to a network analyzer, and a main body connected to said calibration points (18, 20, 22, 24), at least one of the calibration points (18, 20, 22, 24) being rotatable in relation to the main body.

Claims

1. A calibration arrangement (10) for calibrating a network analyzer, comprising multiple calibration points (18, 20, 22, 24) for the direct or indirect connection to a network analyzer; a main body (10) which includes the calibration points (18, 20, 22, 24); wherein at least one of the calibration points (18, 20, 22, 24) is rotatable with respect at least one part of the main body (14, 16).

2. The calibration arrangement (10) as claimed in claim 1, wherein the main body (12) comprises a first main-body part (14) and a second main-body part (16), wherein the second main-body part is rotatable with respect to the first main-body part.

3. The calibration arrangement (10) as claimed in claim 2, wherein the first main-body part is connected to the second main-body part via at least one connecting element (26).

4. The calibration arrangement (10) as claimed in claim 3, wherein the at least one connecting element is designed as a screw, a driver pin, a magnet, or the like.

5. The calibration arrangement (10) as claimed in claim 3 or 4, wherein the force to be applied for rotating the first and/or the second main-body part is adjustable via the connecting element.

6. The calibration arrangement (10) as claimed in claim one of the preceding claims, wherein a spring (28) is arranged in the first main-body part and/or in the second main-body part.

7. The calibration arrangement (10) as claimed in one of the preceding claims, wherein at least one disk (30; 32; 34), in particular a plastic disk, is formed in the main body (12).

8. The calibration arrangement (10) as claimed in claim 7, wherein the disk is situated between the spring (28) and the connecting element and/or between the spring (28) and the main-body part which comprises the spring (28), and or between the first and the second main-body part.

9. A method for operating a calibration arrangement (10) comprising multiple calibration points (18, 20, 22, 24), which includes the following steps: connecting one calibration point of the calibration arrangement (10) to a network analyzer for a match, a short, and/or an open, and carrying out the corresponding calibration; disconnecting the calibration arrangement (10) and the network analyzer; rotating one part of the calibration arrangement, which includes a calibration point for establishing a thru to the network analyzer; establishing a thru between the calibration arrangement (10) and the network analyzer.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0034] The present invention is described in greater detail in the following with reference to the exemplary embodiments indicated in the schematic figures of the drawing. In the drawing:

[0035] FIG. 1 shows a schematic perspective view of a calibration arrangement according to the invention;

[0036] FIG. 2 shows a schematic front view of a calibration arrangement according to the invention in a first state;

[0037] FIG. 3 shows a schematic front view of a calibration arrangement according to the invention in a second state;

[0038] FIG. 4 shows a schematic section view of a first embodiment of a calibration arrangement according to the invention;

[0039] FIG. 5 shows a schematic perspective view of a first main-body part of a calibration arrangement according to the invention;

[0040] FIG. 6 shows a schematic perspective view of a second main-body part of a calibration arrangement according to the invention.

[0041] The attached figures of the drawing are intended to enable a deeper understanding of the embodiments of the invention. They illustrate embodiments and are used in conjunction with the description to clarify principles and concepts of the invention. Other embodiments and many of the aforementioned advantageous become apparent in light of the drawings. The elements of the drawings are not necessarily shown true to scale with respect to each other.

[0042] In the figures of the drawing, identical, functionally identical, and identically acting elements, features and components are each provided with the same reference signs, unless stated otherwise.

DESCRIPTION OF EXEMPLARY EMBODIMENTS

[0043] Although the present invention has been described above in entirety with reference to preferred exemplary embodiments, it is not limited thereto, but rather can be modified in diverse ways.

[0044] FIG. 1 shows a first embodiment of a calibration arrangement 10 according to the invention. The calibration arrangement 10 comprises a main body which, in FIG. 1, is designed as a preassembled assembly. The main body 14 comprises a first main-body part 14 and a second main-body part 16. The first main-body part 14 comprises multiple calibration standards 20 (short), 22 (load/match), and 24 (open). The second main-body part 16 comprises a receptacle for a calibration standard 18 for a thru.

[0045] The first and the second main body parts 14, 16 are connected via a screw (not represented in FIG. 1). The two main-body parts 14, 16 are rotatable with respect to each other.

[0046] The assembly of the calibration arrangement 10 in FIG. 1 has not yet been completed. FIGS. 2 and 3 show the calibration arrangement 10 according to FIG. 1 in a fully-assembled state. FIGS. 2 and 3 show a calibration arrangement 10 comprising connectors and calibration points.

[0047] In FIG. 2, it is apparent that the calibration standard 18 for a thru comprises a connector pair including the connectors 18a and 18b. The calibration arrangement 10 is represented in a first state in FIG. 2. In the state according to FIG. 2, the thru of the calibration arrangement 10 is possibly not connectable to a network analyzer, since the standards 20, 22 possibly protrude too far outward and could therefore impede a connection of the calibration points 18a, 18b. The state according to FIG. 2 can therefore also be referred to as a storage state. In particular, the calibration arrangement 10 in FIG. 2 comprises a flat bearing surface and is therefore better protected against scratching of or damage to the interface of the calibration connectors.

[0048] FIG. 3 shows the calibration arrangement 10 according to FIG. 2 in a second state. In FIG. 3, the second main-body part 16 has been rotated with respect to the first main-body part 14. In the state according to FIG. 3, a network analyzer (not represented) can be particularly easily connected to the standard 18 for a thru.

[0049] In contrast to FIG. 2, the state according to FIG. 3 is only conditionally suitable for the storage of the calibration arrangement 10, since the calibration arrangement could be easily scratched or exposed to other types of damage in the second state, particularly on the standards 18, 20, 22, 24 thereof, due to their uneven shape.

[0050] FIG. 4 shows a section view of a calibration arrangement 10 according to the invention, according to one of FIGS. 1 to 3. In FIG. 4, the calibration arrangement 10 comprises a screw 26 which connects the first main-body part 14 to the second main-body part 16. The screw 26 is situated in a hole in each of the two main-body parts 14, 16. The first main-body part 14 can be rotated with respect to the second main-body part 16, by way of the screw 26 rotating along.

[0051] A spring 28 is situated between a stop, which the main-body part forms by means of the bottom of a blind hole in the main body 14, and the head of the screw 26. The spring 28 ensures a tolerance compensation and reduces wear and tear which are produced via the rotation. Moreover, the spring 28 ensures a certain amount of force to be applied, provided the screw is screwed in downward, i.e., in the direction of the second main body 16.

[0052] In order to prevent further wear and tear, the calibration arrangement 10 comprises a plastic disk 30 between the spring 28 and the head of the screw 26, which prevents the screw from rubbing on the spring 28. Another plastic disk 32 is therefore also situated between the spring 28 and the first main-body part 14.

[0053] The first main-body part 14 comprises, on its side directed toward the second main-body part 16, an approximately cloverleaf-shaped recess 36 which is designed as a milled recess. The second main-body part 16 comprises, on its side directed toward the first main-body part 14, a step 40 corresponding to the cloverleaf-shaped recess 36. The recess 36 and the step 40 are designed in such a way that the step 40 can engage with the recess 36 in two different positions lying at right angles with respect to each other. The recess 36 therefore forms a stop or a detent mechanism for the step 40.

[0054] In order to rotate the main body parts 14, 16 with respect to each other, a user pulls on the second main-body part 16, and therefore the spring 28 is compressed and the step 40 is pushed out of the recess 36.

[0055] It is understood that it is also possible to situate the screw 26 and the spring 28 in the calibration arrangement 10 in a mirror-image arrangement, and therefore the spring 28 as well as the head of the screw 26 are situated in the second main-body part 16.

[0056] FIG. 5 shows the first main-body part 14 of the calibration arrangement 10 according to one of the FIGS. 1 to 4. FIG. 5 shows, in particular, the cloverleaf-shaped recess 36.

[0057] FIG. 6 shows the second main-body part 16 in a round design of the calibration arrangement 10 according to one of FIGS. 1 to 4. FIG. 6 shows, in particular, the step 40 which can engage with the recess 36 in different positions which are at a right angle with respect to each other.

[0058] In the case of an exemplary embodiment of a calibration arrangement 10 according to the invention, according to FIGS. 1 to 4, it is particularly advantageous that the first main-body part 14 and the second main-body part 16 are rotatable with respect to each other without the need to pull the second main-body part 16 out of the recess 36. To this end, the recess 36 is designed in such a way that the step 40 on the second main-body part 16 comprises a stop at a 90 angle with respect to the starting position. To this end, the screw 26 is tightened to such an extent that the spring force of the spring 28 offers holding force which is sufficient to prevent the second main-body part 16 from lifting away from the first main-body part 14. This simplifies the handling in a particularly intuitive way.

LIST OF REFERENCE SIGNS

[0059] 10 calibration arrangement [0060] 12 main body [0061] 14 first main-body part [0062] 16 second main-body part [0063] 18 thru standard [0064] 18a thru connector [0065] 18b thru connector [0066] 20 short standard [0067] 22 open standard [0068] 24 load standard [0069] 26 screw [0070] 28 spring [0071] 30 plastic disk [0072] 32 plastic disk [0073] 34 plastic disk [0074] 36 receptacle [0075] 40 step