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Block filter

A filter and microwave filter technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problems of limited flexibility and difficulty in choosing the width of spacers, and achieve the effect of high flexibility

Inactive Publication Date: 2006-11-01
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this filter has a certain degree of flexibility, it is very limited and it is not possible to construct complex filters
Also, it can be difficult to choose the correct spacer width to achieve the desired result

Method used

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Examples

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Effect test

Embodiment Construction

[0032] In Fig. 1, a microwave filter 1 is shown. The filter 1 comprises six coaxial discrete resonators 2 coupled together in a two-dimensional array. Each resonator 2 comprises a hollow housing 3 which is open at the top and constituted by a rectangular bottom wall 4 and side walls 5 extending upward from the bottom wall 4 . The side wall 5 includes four connected wall members 5a, 5b, 5c and 5d provided at the four sides of the rectangular bottom wall 4 so as to surround the bottom wall 4 at the sides. The housing 3 is integrally formed into a monolithic structure. In the completed filter, a cover plate (not shown) is fixed to the upper end of the side wall 5 to close the open top of the housing 3 of the resonator 2 .

[0033] For reasons of weight and cost, the housing 2 is preferably made of aluminum. However, it can also advantageously be made of iron, copper, brass or Invar. Other beneficial material choices include ceramic or polymeric materials. Useful polymeric ma...

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PUM

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Abstract

The present invention relates to a method of constructing a microwave filter (1, 10) comprising a plurality of coupled resonators (2) and to a microwave filter manufactured by the method. A microwave filter (1, 10) is constructed by providing a plurality of individual resonators (2) and mechanically connecting the plurality of resonators (2) to form the filter (1, 10). Each of the resonators (2) is formed in one piece at least with a bottom wall (4) and a sidewall (5) laterally encircling the bottom wall (4) and extending upwardly therefrom. Furthermore, a plurality of coupling means (7, 11) is provided between the individual resonators (2). Accordingly, a microwave filter (1, 10) manufactured by the method comprises a plurality of coupled resonators (2) mechanically connected to form the filter (1, 10), wherein each of the plurality of resonators (2) is formed separately in one piece at least with a bottom wall (4) and a sidewall (5) laterally encircling the bottom wall (4) and extending upwardly therefrom, and wherein a plurality of coupling means (7, 11) is provided between the individual resonators (2).

Description

technical field [0001] The invention relates to a method for constructing a microwave filter comprising a plurality of coupled resonators, and to a microwave filter constructed according to the method. Background technique [0002] The microwave domain of the electromagnetic spectrum is widely used in various technical fields. Exemplary applications include wireless communication systems, such as mobile and satellite communication systems, and navigation and radar technology. The increasing use of microwaves increases the possibility of interference within a system or between different systems. Therefore, the microwave domain is divided into a number of different frequency bands. To ensure that a particular device communicates only within the frequency band designated for that device, microwave filters are used to perform band pass and band reject functions during transmission and / or reception. Therefore, filters are used to separate the different frequency bands and to d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/205
CPCH01P1/2053H01P11/007
Inventor 斯蒂芬·博格
Owner PANASONIC CORP
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