Switch for switchable attenuator and high frequency switchable attenuator

Patent metadata

Field	Value
Publication number	US-10193202-B2
Application number	US-201715401074-A
Country	US
Kind code	B2
Filing date	Jan 8, 2017
Priority date	Nov 18, 2016
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

A switch comprises a first strip conductor and a second strip conductor, arranged orthogonally in a first plane. Moreover, the switch comprises a first switching conductor, having an orthogonally angled shape relative to the first plane. The switch comprises a switching actuator, which is mechanically connected to the first switching conductor and adapted to move vertically relative to the first plane to a first position and to a second position. The switching actuator is configured, so that in the first position, the first strip conductor is in contact with the first switching conductor and the second strip conductor is in contact with the first switching conductor, and so that in the second position, the first strip conductor and the second strip conductor are not in contact with the first switching conductor.

First claim

What is claimed is:

1. A switch comprising:
a first strip conductor and a second strip conductor arranged orthogonally in a first plane;
a first switching conductor configured in an orthogonally angled shape relative to the first plane; and
a switching actuator mechanically connected to the first switching conductor, and configured to move vertically, relative to the first plane, to a first position and to a second position.

2. The switch of claim 1 , wherein the switch is configured in one or more of the following manners:
one or more of the first strip conductor and the second strip conductor have a thickness of 0.1 mm to 0.5 mm; and
one or more of the first strip conductor and the second strip conductor have a width of 0.25 mm to 2.0 mm.

3. The switch of claim 1 , wherein one or more of the first strip conductor and the second strip conductor are held in place by axially symmetric non-conductive support elements within the strip conductor channel.

4. The switch of claim 1 , wherein the first strip conductor and the second strip conductor are at least partially enclosed by an electrically conducting strip conductor channel connected to ground, and wherein the first strip conductor and the second strip conductor are separated from the strip conductor channel by an electrically non-conductive gap in the first plane.

5. The switch of claim 4 , wherein the gap has a width of 0.1 mm to 0.5 mm.

6. The switch of claim 1 , wherein the switching actuator is configured whereby, in the first position, the first strip conductor is in contact with the first switching conductor and the second strip conductor is in contact with the first switching conductor, and, in the second position, the first strip conductor and the second strip conductor are not in contact with the first switching conductor.

7. The switch of claim 6 , wherein the switching actuator is configured whereby, in the second position, the first switching conductor is in contact with a ground plane.

8. The switch of claim 6 , further comprising:
a third strip conductor arranged orthogonally to the first strip conductor and opposite to the second strip conductor relative to the first strip conductor in the first plane; and
a second switching conductor configured in an orthogonally angled shape relative to the first plane; and
wherein the switching actuator is mechanically connected to the second switching conductor,
wherein the switching actuator is configured whereby, in the first position, the first strip conductor and the third strip conductor are not in contact with the second switching conductor, and
wherein the switching actuator is configured whereby, in the second position, the first strip conductor is in contact with the second switching conductor, and the third strip conductor is in contact with the second switching conductor.

9. The switch of claim 8 , wherein one or more of the first strip conductor, the second strip conductor and the third strip conductor are held in place by axially symmetric non-conductive support elements within the strip conductor channel.

10. The switch of claim 8 , wherein the switching actuator is configured whereby, in the first position, the second switching conductor is in contact with a ground plane.

11. The switch of claim 8 , wherein one or more of the first strip conductor, the second strip conductor and the third strip conductor are at least partially enclosed by an electrically conducting strip conductor channel connected to ground, and wherein one or more of the first strip conductor, the second strip conductor and the third strip conductor are separated from the strip conductor channel by an electrically non-conductive gap in the first plane.

12. The switch of claim 11 , wherein the switch is configured in one or more of the following manners:
one or more of the first strip conductor, the second strip conductor and the third strip conductor have a thickness of 0.1 mm to 0.5 mm;
one or more of the first strip conductor, the second strip conductor and the third strip conductor have a width of 0.25 mm to 2.0 mm; and
wherein the gap has a width of 0.1 mm to 0.5 mm.

13. An attenuation stage of a switchable attenuator, comprising at least two switches, wherein each of the switches comprises:
a first strip conductor and a second strip conductor arranged orthogonally in a first plane;
a first switching conductor configured in an orthogonally angled shape relative to the first plane;
a switching actuator mechanically connected to the first switching conductor, and configured to move vertically, relative to the first plane, to a first position and to a second position;
a third strip conductor arranged orthogonally to the first strip conductor and opposite to the second strip conductor relative to the first strip conductor in the first plane; and
a second switching conductor configured in an orthogonally angled shape relative to the first plane; and
wherein the switching actuator is mechanically connected to the second switching conductor,
wherein the switching actuator is configured whereby, in the first position, the first strip conductor is in contact with the first switching conductor, the second strip conductor is in contact with the first switching conductor, and the first strip conductor and the third strip conductor are not in contact with the second switching conductor, and
wherein the switching actuator is configured whereby, in the second position, the first strip conductor and the second strip conductor are not in contact with the first switching conductor, the first strip conductor is in contact with the second switching conductor, and the third strip conductor is in contact with the second switching conductor; and
wherein the second strip conductor of a first of the at least two switches is connected to a first terminal of an electrical element,
wherein the second strip conductor of a second of the at least two switches is connected to a second terminal of the electrical element,
wherein the third strip conductor of the first switch is connected to the third strip conductor of the second switch,
wherein the first strip conductor of the first switch forms an input terminal of the attenuation stage, and
wherein the first strip conductor of the second switch forms an output terminal of the attenuation stage.

14. The attenuation stage according to claim 13 , wherein the electrical element is a resistor formed in thin film technology.

15. The attenuation stage according to claim 13 , wherein:
for each of the at least two switches, one or more of the first strip conductor, the second strip conductor and the third strip conductor are at least partially enclosed by an electrically conducting strip conductor channel connected to ground, and wherein one or more of the first strip conductor, the second strip conductor and the third strip conductor are separated from the strip conductor channel by an electrically non-conductive gap in the first plane; and
the electrical element is disposed on an electrically non-conductive ceramic substrate, and wherein the ceramic substrate is one of soldered, pressure welded and glued onto the strip conductor channel, and/or the electrical element is thermally connected to the strip conductor channel.

16. The attenuation stage according to claim 15 , wherein the electrically non-conductive ceramic substrate is a Silicon-Nitride-Substrate.

17. A switchable attenuator comprising a one attenuation stage that comprises at least two switches, wherein each of the switches comprises:
a first strip conductor and a second strip co

Assignees

• Rohde & Schwarz

Inventors

• Sterns Michael
• Leipold Markus
• Sedlmeier Sebastian
• Freudenreich Markus
• Freudenreich Matthias
• Stockbauer Karl
• Raith Andreas
• Wittenzellner Alois

Classifications

• H01H3/12

  Push-buttons · CPC title

• H01P1/222 Primary

  Waveguide attenuators (H01P1/23 takes precedence) · CPC title

• H01H2239/004

  High frequency adaptation or shielding · CPC title

• H01P5/04

  with variable factor of coupling · CPC title

• H01P1/12 Primary

  by mechanical chopper · CPC title