JPS6315501A - Waveguide circuit - Google Patents

Abstract

PURPOSE:To keep the titled waveguide circuit airtight by inserting an airtight material to a split part of the split waveguide circuit, processing a flange face uniformly and giving a conventional waveguide packing. CONSTITUTION:Split constitution parts 1, 2 of a waveguide microwave circuit use an airtight material 4 such as a rubber to keep the side face airtight and the airtight material 4 is inserted up to the inner side of the airtight packing 5 of the waveguide, and the microwave circuit constitution parts 1, 2 and the airtight material 4 are processed to form a mated face at the flange face. A caption 3 shows the inside of the waveguide circuit. Through the structure above, since the airtight material 4 and the waveguide packing 5 are overlapped, the airtightness of the entire waveguide microwave circuit is kept and since the contact between metals of the constitution parts 1, 2 is guaranteed to the inside 3 of the microwave circuit, no effect is given onto the electric characteristic.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a nine-waveguide circuit that has input and output terminals of a waveguide and requires airtightness of the internal three-dimensional circuit. [Prior Art] Conventionally, circulators with waveguide input and output terminals,
When configuring a 3D circuit such as a filter, in order to work on the internal 3D circuit section, divide the 4-wave pipe into appropriate cross sections, work on the necessary 3D circuits inside each section, and combine them. By doing this, the whole is constructed.

(Problems to be Solved by the Invention) When the dividing plane cuts the waveguide that becomes the input/output terminal, the conventional method using an O-ring has the disadvantage that internal airtightness cannot be obtained. For this reason, conventionally, in order to construct waveguide three-dimensional circuits that require airtightness, it is not possible to use the above-mentioned configuration in which the waveguide is divided at the cutting surface, and the internal three-dimensional circuit cannot be made into a complicated shape. could not be processed.

[Means for solving m points between]

The means of the present invention for solving the above-mentioned problems is to provide an input/output terminal in a three-dimensional circuit having an input/output terminal of a waveguide composed of two parts, which are divided in the direction of cutting the opening of the waveguide. There is no airtight treatment between the two parts using a rubber-like or hardening adhesive on the part where the air-tight packing used for the waveguide flange and on the outside thereof, and inside the three-dimensional circuit. Ensures metal contact,
This waveguide circuit is characterized in that airtightness within the waveguide three-dimensional circuit is achieved by finishing the cross section of the metal part and the rubber-like material or adhesive to be uniform on the seven-rung surface.

[Effect]

In the configuration of the conduit circuit according to the present invention, the rubber-like or adhesive part is finished uniformly with the metal surface with a 7-rung surface, and the external circuit is By combining this with the packing for the waveguide R used at the connection part, the waveguide port 1h can be made airtight.

〔Example〕

FIGS. 1(4) and 1(g) are a front view and a side view of an embodiment of the present invention, in which the waveguide three-dimensional circuit is divided into constituent parts 1.
The side surface of 2 is kept airtight by an airtight material 4 such as rubber, and the airtight material 4 extends to the inside of the airtight packing 5 of the waveguide on the 7 rung surface of the waveguide input/output terminal. On the 7 rung side, the three-dimensional circuit component 1.2
The airtight material 4 is processed to have a sloped surface. 8 is the inside of the waveguide circuit. According to this structure, since the airtight material 4 and the waveguide packing 5 overlap, it is possible to maintain the airtightness of the entire waveguide three-dimensional circuit. Since metal-to-metal contact is ensured, electrical characteristics are not affected.

FIG. 2 shows another embodiment, in which grooves are formed on the outer periphery of the junction of the divided component parts 1.2 of the three-dimensional waveguide 1g circuit and on the inside of the waveguide packing on the 7-rung surface. This is made airtight by using a curable airtight material 4 such as an adhesive, and the surface of the seven rungs is processed to be uniform.

〔Effect of the invention〕

As explained above, the present invention can be used in combination with normal waveguide packing by applying an airtight material to the divided parts of the waveguide circuit to be divided and by uniformly processing the flange surface. This has the effect of keeping the waveguide circuit airtight.

The figure, side view, and FIG. 2 are needle perspective views of another embodiment.

1... waveguide circuit component, 2... Waveguide circuit configuration part 1 8... Inside the waveguide circuit, 4... Material for maintaining airtightness, 5... Packing for waveguide.

Pin applicant: NEC Corporation , °・ Agent: Patent attorney Susumu Uchihara''・□, Figure 1 Figure 2

Claims (1)

[Claims] In a three-dimensional circuit with a waveguide input/output terminal that is divided into two parts in the direction of cutting the waveguide opening, the airtight packing used for the waveguide flange that serves as the input/output terminal is used. The part and its exterior are treated with a rubber-like or hardening adhesive to make the two parts airtight, and inside the three-dimensional circuit, the two parts are guaranteed to have metal contact, and on the flange surface, the metal part and . A waveguide circuit, characterized in that airtightness within the waveguide three-dimensional circuit is achieved by finishing the cross section of the rubber-like or adhesive material to be uniform.