Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1990-12-28
1992-10-13
Gensler, Paul
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333108, H01P 112
Patent
active
051554569
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a microwave switch arrangement for the selective connection of n input lines with n+a output lines including microwave switches (m.gtoreq.n), with each of the switches having at least two waveguide passages in its rotor and having waveguide switch inputs and outputs in its stator, and waveguides for connecting the microwave switches.
Such microwave switch arrangements are disclosed, for example, in FIGS. 4 and 5 of German Offenlegungsschrift (published, unexamined application) 37 04 875, which is a counterpart to U.S. Pat. No. 4,945,320. The configuration of such microwave switches as internal waveguide switches is also disclosed in this laid-open patent application. The internal waveguide switch of this reference is provided with waveguide passages having reduced dimensions, particularly the smaller dimension of the waveguide cross section.
SUMMARY OF THE INVENTION
According to the present invention, a microwave switch arrangement of the initially mentioned type is provided wherein the microwave switches are all fastened to a carrier plate by waveguide flanges, and waveguide connections corresponding in their dimensions to the waveguide passages of the switches are formed in the carrier plate, and connected to an input or output of the respective switches. The solution according to the invention permits a particularly favorable configuration of a microwave switch arrangement, particularly if a large number of microwave switches are to be employed. The input and output lines to be connected may likewise be waveguide lines or also coaxial lines or part waveguide lines, part coaxial lines. Further advantages and features are defined in the dependent claims and will become evident from the description of the drawing figures.
BRIEF DESCRIPTION OF THE DRAWINGS
Embodiments of the invention will be described with reference to the drawing figures wherein:
FIG. 1 is a perspective illustration of a section of a microwave switch arrangement according to the invention;
FIG. 2 shows a possible microwave switch arrangement in a schematic interconnected illustration;
FIGS. 3a-3f show the possible configuration of a carrier plate;
FIG. 3g is a partial longitudinal view of the partial plate of FIG. 3f, and
FIGS. 4a-4c are views of a different microwave switch configuration.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
In FIG. 1, a carrier plate is designated 1 which in its interior is provided with waveguide connections in the required configuration. On both sides of this carrier plate 1, microwave switches 2 are fastened which are configured as internal waveguide switches, are interconnected by means of waveguides 3 and 4 and are provided with coaxial terminals 5 that are connected by means of plug-in connectors 7 with coaxial cables 6. The coaxial terminals 5 constitute adapters to the waveguides. At least one side, i.e., input/output port, of each of the microwave switches 2 is connected with a waveguide extending in the interior of the plate 1. At least some of these waveguides end in adapter chambers in a cover plate 1a. These chambers are connectable with coaxial lines by means of coaxial plug-in connectors 8.
FIG. 2 shows eleven coaxial inputs J.sub.1 to J.sub.11 which can be connected by means of microwave switches M.sub.1 to M.sub.17 with fifteen coaxial outputs O.sub.1 to O.sub.15. Outputs O.sub.1 to O.sub.15 lead to amplifiers A.sub.1 to A.sub.15. Four of these amplifiers are provided as substitute amplifiers A.sub.12 to A.sub.15 which are employed if one or several of the primary amplifiers are malfunctioning. Adjacently disposed microwave switches are interconnected by means of waveguide sections.
If, for example, amplifier A.sub.3 were malfunctioning, actuation of switches M.sub.4 and M.sub.8 would switch input J.sub.3 to substitute amplifier A.sub.14. The arrangement permits a maximum of four switches to be connected in series.
FIG. 3a shows the principle of the configuration of the carrier plate 1. It is composed of partial plates 31 to 33 and cove
REFERENCES:
patent: 3211847 (1965-10-01), Johnson
patent: 4644301 (1987-02-01), Hecht
patent: 4783663 (1988-11-01), Rammos et al.
patent: 4829271 (1989-05-01), Pitschi et al.
patent: 4945320 (1990-07-01), Hettlage et al.
Hettlage Eckart
Rubik Herbert
Ruff Gerd
Gensler Paul
Teldix GmbH
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