Dual-mode reconfigurable filter based on half-mode substrate integrated waveguide and csr structure

A half-mode substrate integration and reconfiguration filter technology, applied in the direction of waveguide devices, circuits, electrical components, etc., can solve problems such as system complexity, achieve large power capacity, low cost, and good out-of-band suppression

Active Publication Date: 2019-10-01
YANCHUANG PHOTOELECTRIC TECH GANZHOU
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Problems solved by technology

[0002] In recent years, wireless communication systems are required to be able to adapt to multi-band and multi-standard work, resulting in unprecedented complexity of the system

Method used

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  • Dual-mode reconfigurable filter based on half-mode substrate integrated waveguide and csr structure
  • Dual-mode reconfigurable filter based on half-mode substrate integrated waveguide and csr structure
  • Dual-mode reconfigurable filter based on half-mode substrate integrated waveguide and csr structure

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0029] This embodiment provides a dual-mode reconfigurable filter based on a half-mode substrate integrated waveguide and a CSR structure, the structure of which is as follows figure 1 , figure 2 , image 3 As shown; in this embodiment, the dielectric substrate adopts Rogers 4350, its dielectric constant is 3.66, loss factor is 0.004, and the thickness is 0.508mm. What the PIN diode adopts is the SMP1345 series PIN tube of skyworks company, adopts SC-79 package, this The total length of the packaged PIN diode is about 1.5mm to 1.7mm, and the length of the pin is about 0.15mm. The choke inductance is 1000nH, the DC blocking capacitor is 150pF, the current limiting resistor is 150 ohms, and the grounding capacitor is 100pF. Inductors, DC blocking capacitors, current limiting resistors, and grounding capacitors are all packaged in 0603, that i...

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Abstract

The invention belongs to the field of microwave and millimeter wave technology, and provides a dual-mode reconfigurable filter based on a half-mode substrate integrated waveguide and a CSR structure, which mainly solves the problem of the large insertion loss of ordinary adjustable filters and the inability to directly adjust the bias voltage of PIN diodes. Adding to the problems of substrate integrated waveguide, the present invention adopts half-mode substrate integrated waveguide technology, and the upper metal pattern layer includes half-mode substrate integrated waveguide copper clad layer, DC bias circuit and "mountain" shaped microstrip line, etc. There are two complementary circular spiral resonant rings (CSR) on both sides of the copper clad layer. By applying forward / reverse bias, the PIN tube is turned on or off, so that the upper metal copper and the "mountain"-shaped microstrip line conduct On or off, and finally achieve single and double passband switching. The reconfigurable filter under this feature has the characteristics of small size, low insertion loss, multiple transmission zeros, high out-of-band rejection, convenient loading of DC feed, fast tuning speed, and convenient tuning. It is especially suitable for wireless communication systems.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave technology, relates to a dual-mode reconfigurable filter based on a half-mode substrate integrated waveguide and a CSR structure, and is particularly suitable for wireless communication systems. Background technique [0002] In recent years, wireless communication systems are required to be able to adapt to multi-band and multi-standard work, resulting in unprecedented complexity of the system. The mutual interference between communications is becoming more and more serious, and the resulting shortage of spectrum resources and the increasingly strong interference between different communication users are also becoming more and more serious. In this case, high-performance filters are used as The effective means to improve this situation is the continuous research and development of researchers, and reconfigurable microwave components have the potential to reduce system complexity, espec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20H01P1/203
Inventor 徐自强谭力孙洋涛吴孟强廖家轩夏红李元勋
Owner YANCHUANG PHOTOELECTRIC TECH GANZHOU
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