Wave-guide integrated on substrate-band-pass filter of coplanar wave-guide

A substrate-integrated waveguide and band-pass filter technology, which is applied to waveguide-type devices, waveguides, electrical components, etc., can solve the problems of large size of band-pass filters, high processing precision, and expensive processing of band-pass filters. To achieve the effect of simple design method, improved performance and simple structure

Inactive Publication Date: 2005-11-16
SOUTHEAST UNIV
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Problems solved by technology

However, it is difficult for these forms of filters to achieve a very wide relative bandwidth (≥50%). Secondly, these forms of bandpass filters are relatively bulky and difficult to integrate with oth

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  • Wave-guide integrated on substrate-band-pass filter of coplanar wave-guide
  • Wave-guide integrated on substrate-band-pass filter of coplanar wave-guide
  • Wave-guide integrated on substrate-band-pass filter of coplanar wave-guide

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Embodiment Construction

[0017] A substrate-integrated waveguide-coplanar waveguide bandpass filter, which is composed of a substrate-integrated waveguide and a coplanar-waveguide periodic structure, and an input terminal 2 and an output terminal 3 are provided on the substrate-integrated waveguide, and the substrate-integrated waveguide includes The dielectric substrate 5 is provided with metal patches 51, 52 on the upper and lower surfaces of the dielectric substrate 5, and at least two rows of metallized through holes 1 are arranged on the dielectric substrate 5. The metal patches 51 and 52 are connected by metallized through holes 1, and the coplanar waveguide periodic structure includes at least one coplanar compact coplanar waveguide unit 4 whose bottom surface is a metal patch, and the coplanar compact coplanar waveguide unit 4 Located inside the integrated waveguide of the substrate, the above-mentioned metallized through holes may be in 2, 3, 5, 8 or 11 rows. In this embodiment, the coplanar ...

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Abstract

The filter is composed of periodic structured substrate integration wave-guide and coplanar wave-guide. Input end and output ends are setup at substrate integration wave-guide. Metal pasters are covered on upper and lower surfaces of medium substrate. There are at least two rows of metallized through holes on medium substrate. Thus, metal pasters on upper and lower surfaces are connected through the said metallized through holes. Periodic structure of coplanar wave-guide includes at least one compact type coplanar wave-guide unit, whose underside is a metal paster, in same plane. The said compact type coplanar wave-guide unit is positioned within the substrate integration wave-guide. Advantages are: small size, in favor of designing IC in millimeter microwave, realizable to traditional PCB or LTCC techniques, satisfying need of designing 3D IC in millimeter microwave, wide frequency selectivity, simple designing method, and good frequency selectivity.

Description

technical field [0001] The invention relates to a substrate integrated waveguide-coplanar waveguide band-pass filter which can be applied to the design of microwave and millimeter wave circuits and can also be used in the design of microwave and millimeter wave integrated circuits in highly integrated systems such as SOP and SOC. Background technique [0002] Microwave and millimeter wave bandpass filters have a large number of applications in rapidly developing communication systems. With the rapid development of broadband communication systems, there is an urgent need for filters with very wide passbands. Broadband microwave and millimeter wave bandpass filters can be formed using traditional structures such as metal ridge waveguides. However, it is difficult for these forms of filters to achieve a very wide relative bandwidth (≥50%). Secondly, these forms of bandpass filters are relatively bulky and difficult to integrate with other microwave and...

Claims

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Application Information

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IPC IPC(8): H01P1/201
Inventor 洪伟郝张成陈继新吴柯
Owner SOUTHEAST UNIV
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