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Reconfigurable bridge filter network based on SIW evanescent mode resonators

A filter network and resonator technology, applied in resonators, waveguide devices, electrical components, etc., can solve the problems of consumption, increase system size, and do not meet the miniaturization and integration of transceiver front-end circuits

Inactive Publication Date: 2020-05-12
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The cascading of individual passive components increases the size of the system, brings significant losses, and consumes more energy. It does not conform to the current mainstream trend of miniaturization, integration, and low energy consumption of the front-end circuit of the transceiver.

Method used

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  • Reconfigurable bridge filter network based on SIW evanescent mode resonators
  • Reconfigurable bridge filter network based on SIW evanescent mode resonators
  • Reconfigurable bridge filter network based on SIW evanescent mode resonators

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Embodiment example

[0051] Such as figure 1 Shown is a three-dimensional reconfigurable bridge filter network, figure 2 It is the bottom surface pattern and perspective view. The network is a centrosymmetric graph and can be input at any port. Therefore, if figure 2, we assume that the upper port 1 and the left port 2 are signal input ports. Port 1 of the upper signal input is connected to a coplanar waveguide with a characteristic impedance of 50Ω, port 2 of the left signal input is connected to a coplanar waveguide of a characteristic impedance of 50Ω, port3 of the lower signal output is connected to a coplanar waveguide of a characteristic impedance of 50Ω, and port4 of the right signal output Connect to a coplanar waveguide with a characteristic impedance of 50Ω. The lower left side of resonator 1 and the upper right side of resonator 2 are connected to a varactor diode loaded on the back by adding a branch to the capacitive load, and a hole is made at the other end of the branch. Two va...

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Abstract

The invention discloses a reconfigurable bridge filter network based on SIW evanescent mode resonators. The reconfigurable bridge filter network comprises an SIW substrate and evanescent mode resonators formed on the substrate, and the network comprises four groups of evanescent mode resonators; the four groups of evanescent mode resonators are arranged in a rectangular array position and are formed on the SIW substrate in an axial symmetry and central symmetry mode, and the central symmetry center is located in the symmetry center of the rectangular array position; the network comprises an inter-stage coupling unit connected between adjacent resonators, and the inter-stage coupling unit is used for providing inter-stage coupling connection between the resonators. The network is a microwave passive device, and the gap bridge coupler and the band-pass filter are integrated on one device. According to the scheme, a cognitive radio technical solution is realized, so that the wireless communication equipment has the capabilities of discovering a 'frequency spectrum cavity' and reasonably utilizing the discovered 'cavity', and a frequency spectrum manager can manage precious frequency spectrum resources in a more flexible manner.

Description

technical field [0001] The invention belongs to the technical field of filter devices, relates to a bridge filter technology, in particular to a reconfigurable bridge filter network based on an SIW evanescent mode resonator. Background technique [0002] A bridge coupler, also known as a 0dB coupler, provides two signal paths that are completely isolated from each other and cross each other. This coupler is widely used in Butler matrix feed antenna arrays. The structures currently used are generally air bridge structures, multi-layer structures, branch line bridge structures, etc. [0003] The modern wireless system has the characteristics of high integration, forming a multi-functional integrated system development trend. The cascading of individual passive components increases the size of the system, brings significant losses, and consumes more energy. It does not conform to the current trend of miniaturization, integration, and low energy consumption of the front-end ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/12H01P7/00
CPCH01P5/12H01P7/00
Inventor 杨涛赖俊辰徐锐敏张希琳龙羽
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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