Reconfigurable filtering attenuator based on continuously adjustable center frequency

A technology for reconstructing filtering and center frequency, which is applied to waveguide devices, resonators, connecting devices, etc., can solve problems such as unfavorable miniaturization and integrated design, and difficulty in meeting device performance requirements, so as to enhance system flexibility and reduce System cost, effect of system size reduction

Active Publication Date: 2022-05-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the existing filter attenuators can only work at fixed frequencies, which is difficult to meet the multi-frequency and multi-mode performance requirements of modern communication systems and radar detection systems.
Moreover, the existing technology that can realize the function of filter attenuator usually directly combines a variety of different device products, which is not conducive to miniaturization and integrated design

Method used

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  • Reconfigurable filtering attenuator based on continuously adjustable center frequency
  • Reconfigurable filtering attenuator based on continuously adjustable center frequency
  • Reconfigurable filtering attenuator based on continuously adjustable center frequency

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see Figure 1-7 Shown, the specific embodiment that the present invention provides is as follows:

[0030] refer to figure 1 As shown, a reconfigurable filter attenuator based on a continuously adjustable center frequency as an embodiment includes a substrate 1 and a filter power division module built on the substrate 1;

[0031] The filter power division module includes three microstrip resonators (2, 3, 4) distributed in parallel at intervals, and o...

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Abstract

The invention provides a reconfigurable filtering attenuator based on continuously adjustable center frequency. The reconfigurable filtering attenuator comprises a substrate and a filtering power division module constructed on the substrate, the filtering power dividing module comprises three microstrip resonators which are distributed in parallel at intervals, one end of each microstrip resonator is connected with a resonance adjusting unit used for adjusting the resonance frequency of the microstrip resonator, and a coupling adjusting unit used for adjusting the coupling state between every two adjacent microstrip resonators is connected between the two adjacent microstrip resonators; wherein the micro-strip resonator located in the middle is connected with a first port through a port micro-strip line, and the two micro-strip resonators located on the two sides are connected with output micro-strip lines respectively. According to the reconfigurable filtering attenuator, the center frequency can be flexibly reconfigured while the passband amplitude is continuously adjusted, so that the system flexibility is effectively enhanced.

Description

technical field [0001] The invention relates to a signal processing device in a wireless communication system, in particular to a reconfigurable filter attenuator based on a continuously adjustable center frequency. Background technique [0002] As a signal amplitude control device, the attenuator is widely used in various communication, radar and test systems. For example, in phased-array systems, attenuators are often used to adjust the amplitude ratio between signal paths to implement beamforming. As a frequency selection device, the band-pass filter is also an important part of the communication system. It is often used to select the operating frequency of the system and filter out clutter interference. The integrated design of the attenuator and the filter can effectively reduce the size of the system and reduce the cost of system production. [0003] At present, a variety of feasible composite design schemes of filter attenuators have appeared in the prior art, inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203H01P7/08H01P5/18
CPCH01P1/203H01P7/088H01P5/184Y02D30/70
Inventor 杨涛陈绍娟魏治华朱旭
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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