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Ultra-wideband microstrip bandpass filter

An ultra-wideband and filter technology, which is applied in the design field of ultra-wideband microstrip bandpass filters, can solve problems such as poor out-of-band suppression performance, and achieve good out-of-band suppression, improved filtering characteristics, and good performance.

Inactive Publication Date: 2016-08-17
成都浩翼科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the out-of-band suppression performance of traditional ultra-wideband bandpass filters is not good in the prior art, and proposes an ultrawideband microstrip bandpass filter

Method used

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  • Ultra-wideband microstrip bandpass filter
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  • Ultra-wideband microstrip bandpass filter

Examples

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Embodiment Construction

[0020] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] The invention provides an ultra-wideband microstrip bandpass filter, such as figure 1 As shown, including the front part, the input port 10 and the output port 11.

[0022] Among them, such as figure 2 As shown, the front part includes a first uniform transmission line 1, a first interdigital coupling unit 2, a resonance unit 3, a second interdigital coupling unit 4, a second uniform transmission line 5, a first fan-shaped impedance branch 6, and a second fan-shaped impedance branch 7. The third fan-shaped impedance branch 8 and the dielectric plate 9.

[0023] The first uniform transmission line 1 and the second uniform transmission line 5 are respectively located at both ends of the dielectric plate 9, one end of the first interdigital coupling unit 2 is connected to the first uniform transmission line 1, and the other end is connected to the...

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Abstract

The invention discloses an ultra-wideband microstrip bandpass filter. The ultra-wideband microstrip bandpass filter comprises a front part, an input port (10) and an output port (11), wherein the front part comprises a first uniform transmission line (1), a second interdigital coupling unit (2), a resonance unit (3), a second interdigital coupling unit (4), a second uniform transmission line (5), a first fan-shaped impedance stub (6), a second fan-shaped impedance stub (7), a third fan-shaped impedance stub (8) and a dielectric plate (9). The ultra-wideband microstrip bandpass filter is simple in structure, shows good performance in a working frequency range and has quite good out-of-band rejection.

Description

technical field [0001] The invention belongs to the technical field of microstrip filters, and in particular relates to the design of an ultra-wideband microstrip bandpass filter. Background technique [0002] In recent years, with the rapid development of wireless communication technology and various communication systems, wireless spectrum resources are becoming more and more scarce. People are eager to develop new and wider frequency bands while improving the utilization rate of existing spectrum. In order to solve this bottleneck problem, the U.S. Federal Communications Commission (FCC) passed the commercial license (3.1GHz-10.6GHz) of ultra-wideband (UWB, Ultra-wideband) technology in 2002, and UWB technology began to receive extensive attention and in-depth research . In order to adapt to the development of ultra-wideband technology, as one of the core components of the RF front-end, the research on ultra-wideband bandpass filters has become the focus and focus of cou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203
CPCH01P1/203
Inventor 赖邱亮曾欣
Owner 成都浩翼科技有限公司
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