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Ultra-wide-band microfilter

A filter and ultra-wideband technology, applied in the field of ultra-wideband micro-filters, can solve the problems of unusable applications, large volume and insertion loss, etc., and achieve the effects of light weight, high reliability, and excellent electrical performance

Inactive Publication Date: 2012-06-20
WUXI NANLIGONG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Filters designed by conventional methods, such as hairpin filter structures, resonant cavity filter structures, and coaxial line filter structures, all have the disadvantages of large volume and insertion loss, and are often unusable for demanding applications

Method used

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Examples

Experimental program
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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0012] combine figure 1 , figure 2 , the present invention is an ultra-wideband microfilter, which comprises a surface-mounted 50-ohm impedance input port P1, a first input capacitor C1, a fifth output capacitor C5, and a surface-mounted 50-ohm impedance output port P2 and the ground terminal, the input port P1 is connected to the first input capacitor C1, the output port P2 is connected to the fifth output capacitor C5, and the other end of the first input capacitor C1 is connected with one end of the second inductor L2 and the third capacitor C3 respectively. One end is connected; the other end of the second inductance L2 is grounded, the other end of the third capacitor C3 is respectively connected to one end of the fourth inductance L4 and one end of the fifth output capacitor C5; the other end of the fourth inductance L4 is grounded, and the fifth outp...

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PUM

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Abstract

The invention relates to an ultra-wide-band microfilter which comprises input / output interfaces applicable to surface mounting and input and output inductors, wherein a distribution parameter strip line is adopted for implementation; the input / output interfaces as well as the input and output inductors are realized by adopting a multilayer low-temperature co-fired ceramic technology. The ultra-wide-band microfilter provided by the invention has the advantages of wide frequency covering, small insertion loss, light weight, small size, high reliability, good electric property, good phase frequency characteristic linearity, good temperature stability, good electric property batch consistency, low cost, volume production and the like, and is especially suitable for wireless communication hand-held and portable terminal products of radars, correspondence, rocket carrying, aircraft carrying, missile carrying, spacecrafts, single soldier mobile communication terminals and the like, as well as corresponding frequency band systems which have rigor requirements in size, weight, electric property, reliability and the like.

Description

technical field [0001] The invention relates to a filter, in particular to an ultra-wideband miniature filter. Background technique [0002] With the development of microwave and millimeter wave communication, radar and other systems, especially in mobile handheld wireless communication terminals, individual satellite mobile communication terminals, military and civilian multi-mode multi-channel communication system terminals, airborne, missile-borne, aerospace communication systems With the continuous miniaturization of microwave and millimeter wave communication modules, bandpass filters are the key electronic components in the receiving and transmitting branches of corresponding bands, and ultra-wideband microfilters are an important development direction. The main technical indicators describing the performance of this component are: passband operating frequency range, stopband frequency range, passband input / output VSWR, passband insertion loss, stopband attenuation, sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/20H01P1/203
Inventor 戴永胜冯媛左同生孙宏途汉敏尹洪浩李平谢秋月韩群飞
Owner WUXI NANLIGONG TECH DEV
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