CN114026740A - 一种低成本的滤波器 - Google Patents

一种低成本的滤波器 Download PDF

Info

Publication number
CN114026740A
CN114026740A CN201980097910.7A CN201980097910A CN114026740A CN 114026740 A CN114026740 A CN 114026740A CN 201980097910 A CN201980097910 A CN 201980097910A CN 114026740 A CN114026740 A CN 114026740A
Authority
CN
China
Prior art keywords
filter
coupled
filter capacitor
substrate
ground
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201980097910.7A
Other languages
English (en)
Other versions
CN114026740B (zh
Inventor
唐开余
阎利杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of CN114026740A publication Critical patent/CN114026740A/zh
Application granted granted Critical
Publication of CN114026740B publication Critical patent/CN114026740B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H01P1/2039—Galvanic coupling between Input/Output
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • H03F1/565—Modifications of input or output impedances, not otherwise provided for using inductive elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1758—Series LC in shunt or branch path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1766—Parallel LC in series path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1018—Means associated with receiver for limiting or suppressing noise or interference noise filters connected between the power supply and the receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
    • H03H2001/0021—Constructional details
    • H03H2001/0085—Multilayer, e.g. LTCC, HTCC, green sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Filters And Equalizers (AREA)

Abstract

本申请实施例提供了一种滤波器，其输入端用于接收射频信号，输出端用于输出滤波后的射频信号。该滤波器包括第一滤波电容和第一接地过孔，其中第一滤波电容设置于基板中或基板的一表面，其第一端与滤波器的输入端或输出端耦合，第二端与设置于基板中的第一接地过孔的一端耦合，且第一接地过孔的另一端与地耦合。本申请利用第一接地过孔产生的寄生电感效应，将第一接地过孔等效的寄生电感代替现有的电感器件，减少了滤波器中电感器件的使用，从而减小了滤波器的面积并降低了其设计成本。

Description

PCT国内申请，说明书已公开。

Claims (14)

  1. PCT国内申请，权利要求书已公开。
CN201980097910.7A 2019-06-27 2019-06-27 一种低成本的滤波器 Active CN114026740B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/093207 WO2020258137A1 (zh) 2019-06-27 2019-06-27 一种低成本的滤波器

Publications (2)

Publication Number Publication Date
CN114026740A true CN114026740A (zh) 2022-02-08
CN114026740B CN114026740B (zh) 2023-06-27

Family

ID=74059894

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980097910.7A Active CN114026740B (zh) 2019-06-27 2019-06-27 一种低成本的滤波器

Country Status (4)

Country Link
US (1) US11996819B2 (zh)
EP (1) EP3982480A4 (zh)
CN (1) CN114026740B (zh)
WO (1) WO2020258137A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101246983A (zh) * 2008-03-17 2008-08-20 南京大学 基于简化左手传输线结构的超宽带滤波器
CN101295808A (zh) * 2007-04-29 2008-10-29 倪其良 一种可变换类别与可调频的宽带滤波器的设计方法
CN101453828A (zh) * 2007-12-07 2009-06-10 三星电机株式会社 电磁带隙结构与印刷电路板
WO2009090917A1 (ja) * 2008-01-17 2009-07-23 Murata Manufacturing Co., Ltd. 積層型共振器および積層型フィルタ
CN103595364A (zh) * 2013-10-31 2014-02-19 中国电子科技集团公司第四十一研究所 一种准分布参数微带高通滤波器
WO2015119176A1 (ja) * 2014-02-10 2015-08-13 株式会社村田製作所 フィルタ回路および無線通信装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002368553A (ja) * 2001-06-08 2002-12-20 Mitsubishi Electric Corp 高周波増幅器およびそれを用いた無線送信装置
JP2009021725A (ja) * 2007-07-11 2009-01-29 Sharp Corp フィルタ装置
JP4530181B2 (ja) * 2008-01-29 2010-08-25 Ｔｄｋ株式会社 積層型ローパスフィルタ
US8781430B2 (en) * 2009-06-29 2014-07-15 Qualcomm Incorporated Receiver filtering devices, systems, and methods
US9093731B2 (en) * 2013-02-21 2015-07-28 Empower RF Systems, Inc. Combiner for an RF power amplifier
TW201611552A (zh) * 2014-09-09 2016-03-16 鴻海精密工業股份有限公司 訊號分離電路及前端電路
WO2016125515A1 (ja) 2015-02-02 2016-08-11 株式会社村田製作所 可変フィルタ回路、高周波モジュール回路、および、通信装置
CN105514094A (zh) * 2016-01-29 2016-04-20 宜确半导体（苏州）有限公司 一种射频天线开关芯片
JP6547707B2 (ja) * 2016-07-29 2019-07-24 株式会社村田製作所 積層フィルタ
CN106099280B (zh) * 2016-08-22 2019-10-11 西安电子科技大学 一种基于硅通孔耦合电容分配的lc带通滤波器
CN107658532A (zh) * 2017-10-23 2018-02-02 石家庄创天电子科技有限公司 滤波器
CN108988816A (zh) * 2018-10-15 2018-12-11 深圳飞骧科技有限公司 谐波抑制功率合成器及射频功率放大器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101295808A (zh) * 2007-04-29 2008-10-29 倪其良 一种可变换类别与可调频的宽带滤波器的设计方法
CN101453828A (zh) * 2007-12-07 2009-06-10 三星电机株式会社 电磁带隙结构与印刷电路板
WO2009090917A1 (ja) * 2008-01-17 2009-07-23 Murata Manufacturing Co., Ltd. 積層型共振器および積層型フィルタ
CN101246983A (zh) * 2008-03-17 2008-08-20 南京大学 基于简化左手传输线结构的超宽带滤波器
CN103595364A (zh) * 2013-10-31 2014-02-19 中国电子科技集团公司第四十一研究所 一种准分布参数微带高通滤波器
WO2015119176A1 (ja) * 2014-02-10 2015-08-13 株式会社村田製作所 フィルタ回路および無線通信装置

Also Published As

Publication number Publication date
WO2020258137A1 (zh) 2020-12-30
CN114026740B (zh) 2023-06-27
EP3982480A4 (en) 2022-05-25
US11996819B2 (en) 2024-05-28
US20220123707A1 (en) 2022-04-21
EP3982480A1 (en) 2022-04-13

Similar Documents

Publication Publication Date Title
US10516379B2 (en) Coupled resonator on-die filters for WiFi applications
US8018299B2 (en) Band-pass filter circuit and multi-layer structure and method thereof
US10283864B2 (en) Antenna and terminal
CN112383316B (zh) 触控与天线共用电路以及便携式通讯设备
KR20040077915A (ko) 신호 처리 방법, 송신기 및 수신기 모듈, 기판 및 가전 제품
CN103956985A (zh) 一种具有多层结构的带通滤波器
CN110943711A (zh) 一种双工器以及电子设备
US20060082424A1 (en) Harmonic spurious signal suppression filter
JP2014230276A (ja) 無線周波整合回路及び無線通信装置
CN103986435B (zh) 小型化宽阻带抑制ltcc低通滤波器
CN114024108A (zh) 一种小型化可重构微带低通滤波器
CN114026740B (zh) 一种低成本的滤波器
US10447227B2 (en) Radio frequency transceiver circuit with distributed inductor and method thereof
CN106450630B (zh) 一种小型化高抑制多层巴伦
CN114679149A (zh) 一种基于ipd工艺的n77带通滤波器
CN111262545B (zh) 低通滤波器
CN103606722A (zh) 叠层介质三工器
CN213990621U (zh) 一种滤波器及射频前端模块
CN216698737U (zh) 一种天线装置及通信装置
CN216356653U (zh) 双频滤波器
TWI796028B (zh) 射頻裝置及其多頻匹配電路
US20230199942A1 (en) Filter module, filter element, and electronic device
CN212381205U (zh) 一种通信终端
CN216873167U (zh) 一种基于ltcc工艺的低通和带通双工器
CN214900860U (zh) 一种滤波器电路及射频前端模块

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant