Low temperature co-fired ceramic ultra-wideband micro filter

A low-temperature co-fired ceramic and ultra-broadband technology, applied in the field of filters, can solve the problems of unusable applications, large volume and insertion loss, etc., and achieve the effects of light weight, high reliability and low loss

Inactive Publication Date: 2012-07-25
CHANGSHU RES INSTITUE OF NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Low temperature co-fired ceramic ultra-wideband micro filter
  • Low temperature co-fired ceramic ultra-wideband micro filter
  • Low temperature co-fired ceramic ultra-wideband micro filter

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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 , image 3 with Figure 4 , the present invention is a low-temperature co-fired ceramic ultra-wideband micro-filter, which includes a surface-mounted 50-ohm impedance input port P1, an input inductance L10, a first-stage parallel resonant unit L1, C1, and a first-stage inter-coupling Circuit L12, C12, second stage parallel resonant unit L2, C2, second interstage coupling circuit L23, C23, third stage parallel resonant unit L3, C3, third interstage coupling circuit L34, C34, fourth stage parallel resonant Unit L4, C4, fourth interstage coupling circuit L45, C45, fifth stage parallel resonance unit L5, C5, fifth interstage coupling circuit L56, C56, sixth stage parallel resonance unit L6, C6, sixth interstage coupling Circuit L67, C67, seventh stage parallel resonant unit L7, C7, seventh interstage coupling circuit L78, C...

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Abstract

The invention relates to a low-temperature co-fired ceramic ultra-wideband micro filter, comprising input and output interfaces suitable for pasting on a surface; input and output inductors; nine parallel resonance units implemented by three-layer folded coupling strip line and comb type coupled resonance structures; and eight groups of enhanced coupling diaphragms with resonance levels which are directly connected with each other, the structures are implemented by multi-layer low-temperature co-fired ceramic technology. According to the invention, the low-temperature co-fired ceramic ultra-wideband micro filter has the advantages of wide frequency coverage, low insertion loss, good controllability, small volume, light weight, high reliability, good electrical property, good phase frequency characteristic linearity, good temperature stability, low cost and mass production, and is particularly applied to fields of millimeter wave communication, microwave navigation, guidance, telemetry, remote control, satellite communication and military confrontation, and corresponding frequency range systems having excessive demand on volume, weight, electrical property and reliability.

Description

technical field [0001] The invention relates to a filter, in particular to a low-temperature co-fired ceramic ultra-wideband micro-filter. Background technique [0002] In 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, and aerospace communication systems, with The pass filter is the key electronic component in the receiving and transmitting branches of the corresponding band, and the ultra-wideband micro-filter is an important development direction. It has the characteristics of high transmission rate, low power consumption and strong anti-interference ability. One of the key components in the system. The main technical indicators describing the performance of this component are: passband operating frequency range, stopband frequency ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203
Inventor 戴永胜吴建星韦晨君郭风英吴迎春戚湧陈建锋范小龙李旭韩群飞尹洪浩左同生冯媛谢秋月李平孙宏途汉敏王立杰陈少波徐利周聪张红陈曦於秋杉杨健
Owner CHANGSHU RES INSTITUE OF NANJING UNIV OF SCI & TECH
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