A Highly Selective Three-pass Band Power Divider Filter

A high-selectivity, three-pass-band technology, used in waveguide-type devices, circuits, electrical components, etc., can solve the problems of poor isolation, difficult implementation, poor selectivity, etc., to achieve low production cost, compact structure, high selective effect

Active Publication Date: 2021-07-30
NANJING IND INST FOR ADVANCED INTELLIGENT EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a high-selectivity three-pass band power-dividing filter to solve the problems of difficult realization, large insertion loss, poor selectivity and poor isolation level existing in the existing power-dividing filter

Method used

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  • A Highly Selective Three-pass Band Power Divider Filter
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  • A Highly Selective Three-pass Band Power Divider Filter

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Embodiment Construction

[0032] In order to make the above objects, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The embodiment of the present invention discloses a high selective three-way belt power filter, the method is selectively selective, small insertion loss, excellent inhibition performance, is a microwave passive device for radio frequency front end circuit, applied to modern wireless communication system .

[0034] like figure 1 , figure 2 As shown, a high selective three-way belt power filter according to the present embodiment includes a rectangular dielectric substrate 1, and a metal ground plate 2 is provided on the lower surface of the rectangular dielectric substrate 1, in the rectangular dielectric substrate. 1 The upper surface is provided with an input port feeder 3, the first output port feeder 4, and the second output port feeder 5, and ...

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Abstract

The invention discloses a high-selectivity three-pass band power dividing filter, which comprises a rectangular dielectric substrate, a metal grounding plate is provided on the lower surface, and an input port feeder, a first output port feeder and a second output port feeder are provided on the upper surface , a first coupled microstrip strip is provided between the first output port feeder and the input port feeder, and a second coupled microstrip strip is provided between the second output port feeder and the input port feeder. The first coupled microstrip strip connects the first half-wavelength open line and the third coupled microstrip strip; the second coupled microstrip strip connects the second half-wavelength open line and the fourth coupled microstrip line strip; the fifth coupled microstrip line strip is shorted to the metal ground plate and connected to the front end of the first terminal open stub, and the sixth coupled microstrip line strip is shorted to the metal ground plate and connected to the front end of the second terminal open stub. The invention discloses a high-selectivity three-pass band power dividing filter, which has the advantages of compact structure, low loss, high selectivity, good isolation, and good out-of-band suppression performance.

Description

Technical field [0001] The present invention relates to the field of microwave passive devices, and more particularly to a high selective three-way belt software filter. Background technique [0002] In recent years, with the development, low cost, high integration, miniaturization of Monolithic MicroAve Integrated Circuit, MMICs, has become a modern wireless communication system integrated design. Important considerations. Typically, the radio frequency front end circuit consists of different devices, such as filters, power, etc., and separately designed these devices have undoubtedly increase the physical size of the front-end circuit, and therefore, the device is designed and the device having power and filtering characteristics becomes a reduction circuit. The most effective way to dimension. The score filter is a wide concern of academic researchers as a functionally integrated passive component. [0003] Document 1 [CFChen, TYHuang, TMShen and RBWu, "Design of MiniaturizedF...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/203
CPCH01P1/20309H01P1/2039
Inventor 张钢焦飞张其运李则灵杨继全
Owner NANJING IND INST FOR ADVANCED INTELLIGENT EQUIP
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