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High-frequency filters with dielectric substrates for transmission of tm modes in the transverse direction

A high-frequency filter and dielectric technology, applied in waveguide devices, circuits, resonators, etc., can solve problems such as high position requirements

Active Publication Date: 2020-06-05
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of this structure is that, in order to be able to achieve the desired filtering characteristics, a high positional requirement is required

Method used

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  • High-frequency filters with dielectric substrates for transmission of tm modes in the transverse direction
  • High-frequency filters with dielectric substrates for transmission of tm modes in the transverse direction
  • High-frequency filters with dielectric substrates for transmission of tm modes in the transverse direction

Examples

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Embodiment Construction

[0040] figure 1 An exemplary embodiment of the high-frequency filter 1 according to the invention is shown in an exploded view. The high-frequency filter 1 according to the invention comprises a housing 2 with a housing base 3 and a housing cover 4 spaced apart from the housing base 3 , and between the housing base 3 and the housing cover 4 The surrounding housing wall 5 in between. Both the housing top cover 4 and the housing bottom plate 3 have at least one opening, and the signal line connector 30 1 、30 2 It can be introduced through the opening as shown below. Here, the first signal line connector 30 1 Through the opening of the housing top cover 4 to the high frequency filter 1, the second signal line connector 30 2 The high-frequency filter is fed through openings in the housing floor 3 . The openings in the housing roof 4 and the housing roof 3 do not have to be arranged in the center of the housing bottom 3 or the housing roof 4 . The opening can also be arrange...

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PUM

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Abstract

The invention relates to a high-frequency filter (1), comprising at least one first resonator and a housing (2), said housing comprising a housing bottom plate (3), spaced apart from the housing bottom plate (3), The housing cover (4) and the surrounding housing wall (5) between the housing base (3) and the housing cover (4). The at least one first resonator (6 1 ) including resonators (7 1 ), the resonant cavity is surrounded by the housing (2) and / or at least one built-in part (11) in the housing (2). At least one dielectric (8 1 ) is set in the first resonant cavity (7 1 )middle. The first signal line connector (30 1 ) through the first opening in the housing (2) and at least one first resonator (6 1 ) Dielectric (8 1 ) coupling, wherein the coupling takes place parallel to the signal transmission direction (21) and thus perpendicular to the H field (20).

Description

technical field [0001] The invention relates to a high-frequency filter which is particularly suitable for transmitting TM modes in the transverse direction. If one refers to the transmission of TM modes or TM waves, the electric field only has a component along the direction of propagation, while the magnetic field is only in a plane perpendicular to the direction of propagation. Therefore, the TM wave is also called the E wave. Background technique [0002] in M. The publication "Compact Base-Station Filters Using TM-Mode Dielectric Resonators" by T. Magath describes the structure of a high-frequency filter with a plurality of dielectric resonators. Here, the coupling between the individual resonators takes place parallel to the direction of propagation of the H-field. [0003] The disadvantage of this structure is that a high space requirement is required in order to be able to achieve the desired filter properties. Contents of the invention [0004] It is therefor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/208
CPCH01P1/208H01P5/103H01P7/10H01P7/06H01P1/2084H01P7/04H01P1/202H01P5/022H01P5/02
Inventor F·魏斯
Owner TELEFON AB LM ERICSSON (PUBL)