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Waveguide section comprising a waveguide with interposed filter arrangement

A waveguide section, plug-in technology, applied in the field of waveguide sections, can solve the problems of change in suppression characteristics, increase in insertion loss, and decrease in bandwidth of antenna elements.

Active Publication Date: 2021-10-22
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low Q factor of microstrip or slot resonators can lead to increased insertion loss
Also, conventional filters are often designed as if they were isolated, which leads to a reduction in the bandwidth of the antenna element and a change in rejection characteristics due to interaction with the antenna

Method used

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  • Waveguide section comprising a waveguide with interposed filter arrangement
  • Waveguide section comprising a waveguide with interposed filter arrangement
  • Waveguide section comprising a waveguide with interposed filter arrangement

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Embodiment Construction

[0046] The inventive concepts will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the inventive concepts are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and The scope of the inventive concept will be fully conveyed to those skilled in the art. Throughout the specification, like numerals refer to like elements.

[0047] refer to figure 1 , the waveguide section 1 includes eight air-filled waveguide conducting tubes 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h. also refer to figure 2 , figure 2 A cutaway side view of one such waveguide tube 2 is shown, each waveguide tube 2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h having an electrically conductive inner wall 3, 3a. For each waveguide conducting tube 2; 2a, 2b, ...

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Abstract

The invention relates to a waveguide section (1) comprising at least one gas-filled waveguide conducting tube (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h) having an electrically conductive inner wall (3, 3a). Each waveguide conducting tube (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h) comprises two or more conducting elements (5, 6, 7, 8; 5a, 6a, 7a, 8a ), said conductive elements are arranged in series and separated by connection arrangements (11, 11a). Each plug-in filter arrangement (4, 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h) is adapted to be retained in a corresponding waveguide conducting tube by a dielectric holding arrangement (9, 10; 9a, 10a; 79) (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h), so that the conductive element (5, 6, 7, 8; 5a, 6a, 7a, 8a) and the waveguide conducting tube (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h) apart. The conductive elements (5, 6, 7, 8; 5a, 6a, 7a, 8a) are arranged to be electromagnetically coupled so as to be electromagnetically filtered by radio frequency.

Description

technical field [0001] The invention relates to a waveguide section comprising at least one waveguide with plug-in filter means for transmitting and receiving radio-frequency signals, and also to an antenna array and the plug-in filter means themselves, and to the Methods related to antenna devices. Background technique [0002] An antenna element is a device configured to transmit and / or receive electromagnetic signals, such as radio frequency (RF) signals used for wireless communications. A phased antenna array is an antenna comprising multiple antenna elements by which the antenna radiation pattern can be controlled by varying the relative phase and amplitude of the signals fed to the different antenna elements. [0003] The practical realization of the signal filtering function for such an antenna element is a difficult task. High Q factors, multiple resonators, and high precision are required to achieve filters with low loss and strong rejection of frequencies near th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/202H01P1/207
CPCH01P1/202H01P1/207H01P3/12
Inventor A·德莱尼夫
Owner TELEFON AB LM ERICSSON (PUBL)