Broadband band-pass filter based on seven-mode resonator

A band-pass filter and resonator technology, which is applied to waveguide-type devices, electrical components, circuits, etc., can solve the problem that the pass-band selectivity of the filter needs to be improved, and achieve improved pass-band selectivity, good transmission and reflection characteristics. , low cost effect

Active Publication Date: 2016-02-03
石家庄滤通微波科技有限公司
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Problems solved by technology

For example, the invention patent with the patent publication number CN103855450A proposes a wideband filter implementation method of a ring multimode resonator, which has four resonant modes within the passband frequency range of the filter, and a transmission zero on both sides of the passband to ensure the pass

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  • Broadband band-pass filter based on seven-mode resonator
  • Broadband band-pass filter based on seven-mode resonator
  • Broadband band-pass filter based on seven-mode resonator

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0024] Such as figure 1 As shown, a broadband bandpass filter based on a seven-mode resonator includes a first input / output port 1, a second input / output port 2, an intermediate dielectric substrate, and an upper microstrip structure arranged on the upper surface of the intermediate dielectric substrate And the bottom metal floor set on the bottom surface of the intermediate dielectric substrate;

[0025] Such as figure 2 As shown, the upper microstrip structure includes a first feed network, a seven-mode resonator with a branch-loaded ring structure, and a second feed network.

[0026] Among them, the first feed network is composed of uniform transmission line three 3, uniform transmission line fo...

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Abstract

The invention discloses a broadband band-pass filter based on a seven-mode resonator. The broadband band-pass filter comprises a first input/output port, a second input/output port, an intermediate layer medium substrate, an upper microstrip structure arranged on the upper surface of the intermediate layer medium substrate, and a bottom metal floor arranged at the bottom surface of the intermediate layer medium substrate. The broadband band-pass filter is characterized in that the upper microstrip structure comprises a first feeding network, a branch-loaded annular seven-mode resonator, and a second feeding network. According to the broadband band-pass filter, the branch-loaded annular multi-mode resonator is employed, seven resonance modes can be provided in the broadband passband frequency range, and the transmission and reflection characteristics are better in the passband; and the annular double-path structure can respectively generate a transmission zero at the upper side and the lower side of the passband so that the passband selectivity of the broadband filter is greatly improved, the integration is easy, and the cost is low.

Description

Technical field [0001] The invention belongs to the technical field of radio frequency filters in wireless communication, and specifically relates to a wideband band pass filter based on a seven-mode resonator. Background technique [0002] With the rapid development of communication technology, people's requirements for wireless communication are not only simple voice communication, but also the pursuit of high-definition video and other large data volume and high confidentiality wireless communication, which makes short-distance high-speed wireless communication the future A direction for the development of wireless communication. Under this application background, broadband wireless communication technology emerged and developed rapidly. Broadband wireless communication system has the characteristics of simple system structure, low cost, low power consumption, high transmission rate, and good confidentiality. It is a research hotspot in the field of wireless communication. A...

Claims

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Application Information

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IPC IPC(8): H01P1/203
Inventor 吴小虎葛俊祥
Owner 石家庄滤通微波科技有限公司
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