Electrically tuned filter based on regular hexagonal half-mode substrate integrated waveguide and csr structure

A technology of half-mode substrate integration and regular hexagon, which is applied to waveguide devices, waveguides, circuits, etc., can solve the problems of low cost performance and increased bandwidth requirements, and achieve high out-of-band suppression, reduced size, and high wireless The effect of load quality factor

Active Publication Date: 2020-03-27
YANCHUANG PHOTOELECTRIC TECH GANZHOU
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Problems solved by technology

The problem is that mobile phone manufacturers don't like to increase bandwidth requirements by adding new models of phones, which is not cost-effective

Method used

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  • Electrically tuned filter based on regular hexagonal half-mode substrate integrated waveguide and csr structure
  • Electrically tuned filter based on regular hexagonal half-mode substrate integrated waveguide and csr structure
  • Electrically tuned filter based on regular hexagonal half-mode substrate integrated waveguide and csr structure

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0028] This embodiment provides an electrical tuning filter based on regular hexagonal half-mode substrate integrated waveguide and CSR structure, its structure is as follows figure 1 , figure 2 , image 3 As shown; in the present embodiment, the variable capacitance diode is to select the SMV1405 series variable capacitance diode of skyworks company and use the SC-79 package. The total length of the variable capacitance diode in this package is about 1.5mm to 1.7mm, and the width is about 0.7mm. mm to 0.9mm, and the length of the pin is about 0.15mm. The inductor, capacitor and resistor are packaged in 0603, that is, the length and width reserved for the inductor, capacitor, resistor and metal pad are 1.6mm and 0.8mm. Here, for the convenience of welding, the The square pad is set to 2mm, so the basic position and size of the metal pad on ...

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Abstract

The invention belongs to the field of microwave and millimeter wave technology, and relates to an electrical tuning filter based on a regular hexagonal half-mode substrate integrated waveguide and a CSR structure. The filter combines a regular hexagonal half-mode substrate integrated waveguide and adds a complementary square spiral Resonant ring (CSR), it is not easy to reduce the resonant frequency in the substrate integrated waveguide, the use of complementary spiral resonant ring can make the resonant frequency decrease sharply, so that the size of the external half-mode substrate integrated waveguide is greatly reduced; Under the action of the bias voltage, the center frequency and bandwidth of the filter can be continuously tuned through the varactor diode as the tuning element; the regular hexagonal resonant cavity structure has a higher unloaded quality factor than the rectangular resonant cavity, so six The polygonal structure has smaller insertion loss than the filter made of the rectangular structure, and the invention can improve the size of the complementary spiral resonant ring to control the continuous adjustment of different frequency bands, and has a wide application market.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave technology, relates to an electric tuning filter based on regular hexagonal half-mode substrate integrated waveguide and CSR structure, and is especially suitable for wireless communication systems. Background technique [0002] In recent years, in Long Term Evolution (LTE) Carrier Aggregation (CA) and later technologies, the need to support simultaneous operation of multiple frequency bands through a single antenna has brought many additional challenges to filters and duplexers, isolation loss and linearity are probably the hardest to achieve. Reconfigurable radios are another avenue worth investigating and adopting. As the radio spectrum becomes increasingly crowded, smart cognitive antennas are gaining traction. The problem is that mobile phone manufacturers don't like to increase bandwidth requirements by adding new models of phones, which is not cost-effective. Designs using up...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P3/12H01P1/208H03H11/46
Inventor 徐自强谭力王晓薇吴孟强廖家轩夏红李元勋
Owner YANCHUANG PHOTOELECTRIC TECH GANZHOU
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