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

A half-mode substrate integration and reconstruction filter technology, which is applied in waveguide devices, electrical components, circuits, etc., can solve problems such as system complexity, and achieve the effects of large power capacity, light weight, and reduced size

Active Publication Date: 2018-01-16
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

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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 technical field of microwaves and millimeter waves and provides a dual-mode reconfigurable filter based on a half-mode substrate integrated waveguide and a CSR structure,mainly to solve the problems that an ordinary tunable filter has large insertion loss and bias voltage of a PIN diode can not be directly added to the substrate integrated waveguide. The half-mode substrate integrated waveguide technology is adopted, an upper metal pattern layer comprises a half-mode substrate integrated waveguide copper clad layer, a DC bias circuit, an epsilon-type microstrip line and other structures. Two complementary circular spiral resonators (CSR) are arranged at two sides of the copper clad layer, through applying forward/reverse bias voltage, the PIN diode is conducted or cut off, the upper metal copper and the epsilon-type microstrip line are conducted or cut off, and finally, single dual passband switching is realized. The reconfigurable filter under the features is particularly suitable for a wireless communication system, and has the advantages of small size, low insertion loss, multiple transmission zero points, high out-of-band suppression, convenient DCfeed loading, quick tuning speed, convenient tuning and the like.

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 Applications(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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