RF resonators with bridges coupling adjacent resonators
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A resonator and radio frequency technology, which is applied in the field of tuned radio frequency resonators, can solve the problems of precise configuration and integration of solid dielectric multimode filters, mechanical complexity, hindering applications, etc., to achieve the greatest potential and simplify manufacturing complexity , cost-effective effect
Active Publication Date: 2021-01-01
HUAWEI TECH CO LTD
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This creates a problem of mechanical complexity and requires a larger area for tool (eg nut) access and also introduces the possibility of damage to components during alignment
[0004] The above make the precise configuration and integration of solid dielectric multimode filters problematic and may hinder their application in commercial radio systems
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[0052] Examples will be described below. In the following description of embodiments of the present invention, the same reference numerals will be used for the same or equivalent features in different drawings.
[0053] Embodiments described below relate to a bridge for coupling radio frequency resonators, the bridge comprising a solid body of dielectric material. The body can be shaped as an elongated parallelepiped or any other elongated shape capable of coupling the two modes of adjacent resonators.
[0054] Figure 1a and Figure 1b is a simple illustration of parallel resonant modes occurring in adjacent RF resonators.
[0055] The magnetic and electric field morphologies of the parallel modes in adjacent RF resonators 101 can be found in Figure 1a and Figure 1b see in. By coupling energy between two or more resonators 101 in a similar manner, they can be used to form a filter.
[0056] The magnetic field H1 and the magnetic field H2 represented by the field vector...
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Abstract
A bridge (100) for coupling two radio frequency resonators is provided. The bridge includes a body of dielectric material, holes (202, 302, 402, 502, 602), and a conductive coating. The body of dielectric material has an exposed first surface area and a predetermined length, width, and thickness, and has an elongated shape along the length of the body. A hole (202, 302, 402, 502, 602) is disposed through the body along a width of the body, the hole (202, 302, 402, 502, 602) having a wall (222) forming a second surface region of the body. The conductive coating covers the exposed first surface area of the body and a first portion of the second surface area of the body. A second portion (112, 312, 512) of the second surface region is free of the conductive coating, forming a non-conductive portion of the wall (222) of the hole (202, 302, 402, 502, 602). A method of tuning such a bridge for coupling radio frequency resonators is also described.
Description
technical field [0001] The present invention relates to the field of radio frequency resonators and methods of tuning radio frequency resonators. Background technique [0002] As radio equipment becomes more compact and integrated, there is a new need to produce low-loss, high-power filters with a small volume or form factor. This is primarily to enable the components to be compactly packaged and used in conjunction with large antenna arrays for multiple input multiple output (MIMO) systems. Prior to final assembly of such radio systems, the filter components need to be configured in the form of frequency and bandwidth calibrations to bring them to the required specifications. [0003] Metallic or dielectric screws have been used to perturb electromagnetic fields for frequency or bandwidth adjustment in various filter types. For example, mechanical or discrete nut and screw components can be used with cavity filters and solid dielectric resonators. The nature of the high ...
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