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Miniature active microwave millimeter wave self-load i/q variable inverting quadrature filter

An orthogonal filter and millimeter wave technology, applied in the field of filters, can solve the problems of not having the function of quadrature and phase inversion, and achieve the effects of mass production, small size, and simple circuit structure

Inactive Publication Date: 2017-05-17
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 millimeter wave self-load i/q variable inverting quadrature filter
  • Miniature active microwave millimeter wave self-load i/q variable inverting quadrature filter
  • Miniature active microwave millimeter wave self-load i/q variable inverting quadrature 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] combine figure 1(a), (b), (c), a kind of miniature active microwave millimeter wave self-loading I / Q variable inverting quadrature filter of the present invention is characterized in that the microwave millimeter wave filter of this orthogonal filter Includes surface mount 50 ohm impedance first input port (P1), surface mount 50 ohm impedance second input port (P2), first input inductor (Lin1), second input inductor (Lin2), first stage Parallel resonance unit (L11, L21, L31, C1), second-level parallel resonance unit (L12, L22, L32, C2), third-level parallel resonance unit (L13, L23, L33, C3), fourth-level 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 Inter-stage coupling stripline (Z), surface mount 50 ohm impedan...

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Abstract

The invention discloses a mini active microwave and millimeter wave self-loading I / Q variable phase reversal orthogonal filter, which comprises a single-pole double-throw switch chip KD102010040, a low-noise amplifier chip WFD022036-L12, a surface mount 50-ohm impedance input / output interface, a parallel resonance unit module implemented through a strip line structure, a broadside coupled strip line of a double helix structure and a matched load connected to an isolated port, wherein the structures are implemented by adopting a multilayer low-temperature co-fired ceramic technology (LTCC technology). The mini active microwave and millimeter wave self-loading I / Q variable phase reversal orthogonal filter has the advantages of no external load, variability, phase reversal orthogonality, small insertion loss, easiness in debugging, light weight, small volume, high reliability, good electrical property, good temperature stability, low cost, mass production and the like, and is applied to communication, satellite communication and the other occasion at the corresponding millimeter wave frequency band have strict requirements on the volume, the electrical property, the temperature stability and the reliability and corresponding systems.

Description

technical field [0001] The invention relates to a filter, in particular to a miniature active microwave and millimeter wave self-load 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 ...

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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