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Miniature Active Microwave and Millimeter Wave i/q Variable Inverted Orthogonal Filter

A quadrature filter, millimeter wave technology, applied in the field of filters, can solve the problem of not having the function of quadrature inversion, and achieve the effect of mass production, high reliability and light weight

Inactive Publication Date: 2017-01-25
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the filter used in the traditional situation does not have the function of quadrature and phase inversion, but is realized by an external quadrature and balun

Method used

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  • Miniature Active Microwave and Millimeter Wave i/q Variable Inverted Orthogonal Filter
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  • Miniature Active Microwave and Millimeter Wave i/q Variable Inverted Orthogonal Filter

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] to combine figure 1(a), (b), (c), a miniature active microwave millimeter wave I / Q variable inverting quadrature filter of the present invention, the microwave millimeter wave filter of the orthogonal filter includes a surface mounted 50 ohm impedance input port (P1), surface mount 50 ohm impedance second input port (P2), first input inductance (Lin1), second input inductance (Lin2), first stage parallel resonant unit (L11, L21 , L31, C1), the second parallel resonance unit (L12, L22, L32, C2), the third parallel resonance unit (L13, L23, L33, C3), the fourth parallel resonance unit (L14, L24, L34 , C4), fifth-level parallel resonant unit (L15, L25, L35, C5), sixth-level parallel resonant unit (L16, L26, L36, C6), output inductance (Lout), Z-shaped inter-level coupling stripline (Z), surface-mounted 50-ohm impedance output port (P3), parallel resonan...

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Abstract

The invention discloses a miniature active microwave and millimeter wave I / Q variable phase reversal quadrature filter. The filter comprises a single-pole double-throw switch chip WKD102010040, a low-noise amplifier chip WFD022036-L12, a 50-ohm resistance input / output interface attached to the surface, a parallel resonance unit module of a strip line structure, and a broadside coupling strip line of a dual-spiral structure. The above-mentioned structures are all obtained through the multi-layer low-temperature cofired ceramics technology (LTCC technology). The filter has the advantages of being variable, capable of achieving phase reversal quadrature, low in insertion loss, easy to adjust, light in weight, small in size, high in reliability, good in electrical performance, high in temperature stability, low in cost, capable of being produced on a large scale and the like, and is suitable for occasions with strict requirements of communication, satellite communication and the like in corresponding millimeter wave frequency bands for the size, electrical performance, temperature stability and reliability, and suitable for corresponding systems.

Description

technical field [0001] The invention relates to a filter, in particular to a miniature active microwave and millimeter wave I / Q variable inverting quadrature filter. Background technique [0002] In recent years, with the rapid development of miniaturization of mobile communication, satellite communication and national defense electronic systems, high performance, low cost and miniaturization have become the development direction of the microwave / radio frequency field. The performance, size and reliability of microwave filters Both sex and cost have put forward higher requirements. In some cutting-edge defense equipment, the current frequency bands are quite crowded, so cutting-edge equipment such as satellite communications are developing towards the millimeter-wave band, so microwave millimeter-wave band filters have become key electronic components in the receiving and transmitting branches of this band, described The main indicators of the performance of this component ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/203
Inventor 戴永胜周围杨茂雅周衍芳许心影
Owner NANJING UNIV OF SCI & TECH
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