Recombinant trapped wave frequency band ultra wide band-pass filter based on cross resonator

A band-pass filter and resonator technology, applied in resonators, waveguide-type devices, circuits, etc., can solve problems such as reconfigurable notch-frequency ultra-wideband band-pass filters that have not yet been found in cross-type resonators, and achieve Light weight, high out-of-band rejection, low-cost effects

Inactive Publication Date: 2015-05-27
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
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Problems solved by technology

Relevant research and reports on reconfigurable notch band ultra-wideband bandpass filters based on cross resonators have not been found

Method used

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  • Recombinant trapped wave frequency band ultra wide band-pass filter based on cross resonator
  • Recombinant trapped wave frequency band ultra wide band-pass filter based on cross resonator
  • Recombinant trapped wave frequency band ultra wide band-pass filter based on cross resonator

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Embodiment Construction

[0016] The invention discloses a reconfigurable notch frequency band ultra-wideband bandpass filter based on a cross-shaped resonator, which includes a cross-shaped resonator, and four microstrip lines of the cross-shaped resonator are respectively the first microstrip line along the clockwise direction. The strip line 1, the second microstrip line 2, the third microstrip line 3, and the fourth microstrip line 4, the first microstrip line 1 is located at the top, and the second microstrip line 2 and the fourth microstrip line 4 are about The y axis is symmetrical, the end of the first microstrip line 1 is connected to the first capacitor C L1 connected, the first capacitor C L1 The other end is connected to the first metallized via V 1 connected, the end of the second microstrip line 2 is connected to the second capacitor C L2 connected, the second capacitor C L2 The other end is connected to the second metallized via V 2 connected, the end of the fourth microstrip line 4 ...

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Abstract

The invention discloses a recombinant trapped wave frequency band ultra wide band-pass filter based on a cross resonator. The recombinant trapped wave frequency band ultra wide band-pass filter comprises a cross resonator, and parallel coupling feeder line structures, wherein three stub lines of the cross resonator are connected with capacitors to the ground. Micro band line design with distribution parameters is adopted. The recombinant trapped wave frequency band ultra wide band-pass filter has the advantages of light weight, small size, high reliability, excellent property, good temperature stability, large-scale production, low cost and the like, and is particularly applicable to ultra wide band communication systems, digital radar, single soldier satellite movement, military and civil multimode and multi-channel communication system terminals in different working environments, and corresponding systems with harsh requirements on weight, property and reliability.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave technology, in particular to a cross-shaped resonator-based reconfigurable notch frequency band ultra-wideband bandpass filter. Background technique [0002] Multimode resonators are receiving more and more attention in the design of microwave devices such as broadband filters, power splitters and antennas due to their multi-transmission pole characteristics, especially when using multimode resonators to design various types of After the ultra-wideband bandpass filter with ultra-wide passband, good out-of-band rejection and frequency selectivity was reported, it caused a wave of research on multimode resonators. However, although the passband and stopband characteristics of these filters have well met the stringent requirements of current broadband systems, with the increasing frequency of communication systems operating between 3.1GHz-10.6GHz The signal is found to cause interference...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203H01P7/08
Inventor 康炜沈义进王辉吴文
Owner NANJING UNIV OF SCI & TECH
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