【技术】Knowles带您一文读懂微带滤波器
楼氏电容(KPD)自2020年收购Integrated Microwave Corporation(IMC)以来,进一步拓展了射频和微波滤波解决方案相关产品系列,含从VHF到Ka波段的各类陶瓷同轴谐振器、集总参数滤波器以及腔体滤波器。在此期间,楼氏电容还就最受市场欢迎的滤波器类型之一——微带滤波器进行了持续创新,并拓展了相关产品系列。
一些读者或许对微带技术还不甚熟悉——它问世于1952年,并随着介电材料制造和薄膜加工技术的进步,被越来越广泛地应用于各类应用中——尤其是在毫米波频率应用上。
微带技术的工作原理概述
如图1所示,从专业的角度来说,微带指的是一种平面传输线技术,其中,导电带与接地层之间以电介质基板隔开。
图1. 典型微带滤波器结构图
具体说来,微带滤波器的设计与构造类似于印刷电路板(PCB)上的电路配置方式。二者的关键区别在于,在微带滤波器中,固体电介质基板上的金属导电带是作谐振器之用,而不仅仅只是互连而已。固体电介质绝缘层之上是金属导电带,其下是金属接地层。导电带周围的电场渗透到两种不同的介质中——部分电场渗透到基板中,另一部分则渗透到导电带上方的空气中。介质基板的介电常数越高,会导致越多的电场集中于基板之中——这意味着介质材料的选择是电场损失的一个重要因素。标准的PCB材料如FR4可用于1GHz以下的低Q值滤波器。选择陶瓷作为介质材料可实现更低的损耗、获取更高的Q值。
该类型的印刷传输线是一种较为常见的滤波应用选择,它可覆盖广泛的频率范围,产生更高的经济效益,并且通常比波导等替代传输线技术更轻、更紧凑。
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目录- RF & Microwave Capacitors Ceramic Capacitors Voltage Multipliers Ceramic Materials Frequency Tuning Components
型号- AT 6926-6 SL ROHS,AT 03HV06 ROHS,AT 9410G-0 ROHS,AT 9402G-8 ROHS,AT 9402G-8 SL1 ROHS,AT 6930-4 ROHS,AT 03HV00 SEREIES,AT 1320,AT 2320G-3 ROHS,AT 23XXG,E7000 SERIE,E6000,AT 9401G-2 ROHS,E6345N,E6345,AT 1310,AT 6965 ROHS,AT 0340,AT 6924-0 SL ROHS,Y101/E16 D19X15X0.8,AT 1315,Y11,Y13,Y12,Y15,Y14,E5380,Y16,E21836,E7424,E5000,AT 9410G SERIES,AT 9402G ROHS,AT 1340,501 CHB 470 J1L,AT 9410G-4 ROHS,AT 6933-0 SL ROHS,101V20T680KT4W,362 CPE 470 J1L,Y4XXX,501 SHR 100 JSLE,702 VM7 G2,AT 1330,D1,D2,D3,D4,D5,AT 9402G-1 ROHS,AT 6926-0 SL ROHS,AT 2728X ROHS,Y31,AT 6930-8 ROHS,Y30,AT 6948 ROHS,AT 9402G-4 ROHS,302 VM6 G2,Y33,Y32,Y35,E4030,Y34,Y37,Y36,AT 03HV00,AT 9410G-3 SL1 ROHS,Y39,Y38,AT 1300 ROHS,152 CHB 100 JS□LE,AT 0310,AT 8054 ROHS,AT 5702 ROHS,AT SM280 ROHS,AT 0315,AT 27283 ROHS,501 SHD 100 JSLE,AT 6965-0 SL ROHS,AT 4011-1 ROHS,AT 5202 ROHS,AT 6995-2 ROHS,AT 6501-2 ROHS,E4000,E3034,AT 9410G-25 ROHS,AT 57290 ROHS,AT 0306,DX,AT 6997-3 ROHS,AT 5501 ROHS,AT 2726X ROHS,AT 0303,AT 8053 ROHS,E61245,E7624,AT 5853 ROHS,AT 5500 ROHS,E4230,AT 5800 ROHS,AT 27263 ROHS,AT 0330,AT 6996-6 ROHS,AT 1306,AT 1303,AT 6924 ROHS,160S41B106KSE,AT 27278 ROHS,E6645,AT 6997-4 ROHS,AT 9410G-4 SL1 ROHS,AT 0320,501 CHB 470 JC1L,E2000 SERIE,AT 6924-3 SL ROHS,AT 6950-1 SL ROHS,Y71,Y72,Y75,AT 5201 ROHS,Y74,Y77,Y76,AT 5450 ROHS,Y78,E5680,AT 6925-8 SL ROHS,E21536,E2036,E4330,E3000,AT 27288 ROHS,A500,501 SHB 470 JC1L,AT 9410G-1 ROHS,500R15X104KSE,AT 6952 ROHS,AT 6997 ROHS,AT 9410G ROHS SERIES,AT 5300 SERIES,AT 9402G-2 SL1 ROHS,AT 9402G SERIES,AT SM 280 ROHS,Y908,E3234,AT 6925-7 SL ROHS,TG 092 ROHS,AT 9401G-4 SL1 R3 ROHS,AT 6935 ROHS,Y9081,AT 57250 ROHS,Y91,501 SHB 100 JS□LE,302 VM4 G2,AT 9410G-0 SL1 ROHS,AT 0300 ROHS,U19,AT 9401G-2 SL1 ROHS,AT 6995 ROHS,AT 03HV03 ROHS,NZ50,AT 2320G-0 ROHS,E4430,U20,U21,AT 03HV20 ROHS,AT 6996-5 ROHS,AT 6926-7 SL ROHS,AT 5852 ROHS,E2000,AT 9402G-4 SL1 ROHS,AT 03HV10 ROHS,AT 6924-1 SL ROHS,AT 6929-0 SL ROHS,D18,AT 2340G-4 ROHS,NZ40,AT 27293 ROHS,U33,AT 6501-1 ROHS,E41030,AT 4012-2 ROHS,E2036 C 11.00X4.00X5.35,AT 5850 ROHS,E5980,AT SM 270 ROHS,AXXX,AT 6927-0 SL ROHS,AT 03HV15 ROHS,AT 5802 ROHS,AT 6927 ROHS,AT 6925-1 SL ROHS,AT 5302 ROHS,501R6560X105KP□,E4000 SERIE,E3434,AT 55H01 ROHS,Y705,E6945,Y708,AT 6926-1 SL ROHS,Y710,AT 6924-2 SL ROHS,AT 6928-0 SL ROHS,AT 6995-0 ROHS,AT 52H02 ROHS,E4630,AT 5400 ROHS,AT SM 290 ROHS,AT 8050 ROHS,AT 5453 ROHS,E2336,E2036/AL C 11.00X4.00X5.35,AT 9410G ROHS,AT 5752 ROHS,AT 9402G-6 ROHS,AT 6997-1 ROHS,AT 5601 ROHS,AT 6996-3 ROHS,AT 2320G-2 ROHS,AT 9410G-3 ROHS,AT 6950 ROHS,AT 6922 ROHS,AT 5702 S ROHS,AT 9401G ROHS,AT 2727X ROHS,AT 6925-3 SL ROHS,UXX,TG 091 ROHS,AT 6996-8 ROHS,AT 9402G-1 SL1 ROHS,AT 27283 R1 ROHS,AT 9410G-1 SL1 ROHS,Y9XX,AT 9410G-2 ROHS,AT 5801 S ROHS,AT 55H01,AT 55H02,E3634,A230,AT 27273 ROHS,AT 5600 ROHS,A23,E3434N,E4830,A24,AT 9401G-1 SL1 ROHS,A28,AT 5200 ROHS,AT 9401G-4 ROHS,NXXX,Y7XX,AT 2320G-1 ROHS,AT 6997-5 ROHS,A30,Y780,AT 6996 ROHS,A37,AT 2320G-1 SL ROHS,AT 8052 ROHS,Y409,AT 27261 ROHS,A370,AT 1310 ROHS,AT 6926 ROHS,AT 6929 ROHS,AT 6501-0,-1,-2 ROHS,AT SM 260 ROHS,CRS06TQ1500FS0TRFXXXROHS,AT 5750 ROHS,AT 27273 + CAP ROHS,E3234N,AT 5451 ROHS,E2636,AT 9402G-2 ROHS,AT 4010-1 ROHS,Y4091,AT 5402 ROHS,AT 6501-3 ROHS,A50,AT 6996-1 ROHS,AT 9410G-5 ROHS,AT 5701 ROHS,AT 27298 ROHS,E3834,E5000 SERIE,AT 27268 ROHS,501 NHB 100 JSLE,AT 6926-5 SL ROHS,E21236,Y219,AT 6925-0 SL ROHS,Y218,AT 6925 ROHS,Y101,AT 9402G,E6645N,AT 6933-2 SL ROHS,AT SM,Y220,AT 9402G-9 ROHS,Y208,E31034,Y209,AT 6952-0 SL ROHS,AT 03HV08 ROHS,AT 9401G-0 SL1 ROHS,152 VM3 G2,Y211,AT 9402G-4 SL1 R3 ROHS,Y210,Y212,Y101S 50.8X50.8X0.635 M,Y101 D19X15X0.8,Y215,Y216,N19,AT 9401G ROHS SERIES,AT 2320G-2 R1 ROHS,AT SM290 ROHS,AT 9401G-0 ROHS,AT 6934 ROHS,AT SM 260 R1 ROHS,AT 52H01,AT 5850 ROHS SERIES,N24,N28,AT 9401G-1 ROHS,101S41N472JCE,AT 9410G-25 SL1 ROHS,AT SM270 ROHS,CRS06TQ1500FS1EROHS,N32,AT 52H02,362 CPE 470 JC1L,AT 9410G-5 SL1 ROHS,E3000 SERIE,AT SM260 ROHS,AT 5700 ROHS,E7024,E2936,AT 6933 ROHS,AT 5300,E6000 SERIE,AT 9401G-4 SL1 ROHS,AT 6928-2 SL ROHS,Y3XX,AT SM SERIES,AT 5452 ROHS,E6045,AT 5801 ROHS,AT 9402G ROHS SERIES,AT 6995-1 ROHS,AT 5751 ROHS,AT 9410G,AT 5401 ROHS,E5080,AT 9402G-9 SL1 ROHS,501 SHB 470 J1L,AT 6928 ROHS,AT 55H02 ROHS,E2036 C 11.00X4.00 F5000+/-50,AT 6926-4 SL ROHS,Y2XX,AT 52H01 ROHS,AT 4012-1 ROHS,AT 6933-1 SL ROHS,AT 6997-2 ROHS,AT 5502 ROHS,AT 6935-0 SL ROHS,AT 6996-2 ROHS,AT 5602 ROHS,AT 6996-4 ROHS,AT 2729X ROHS,AT 5851 ROHS,AT 5301 ROHS,AT 9402G-6 SL1 ROHS,AT 6997-0 ROHS,AT 6950-0 SL ROHS,E7000,AT 6934-0 SL ROHS,AT 6925-9 SL ROHS,AT 5753 ROHS,E7224,362 CPX 100 GC1□L□,AT 9410G-2 SL1 ROHS,AT 9410G-2 SL1 R7 ROHS,Y1XX,AT 8051 ROHS,E2336N,AT 9402G-0 SL1 ROHS,362 CLX 100 GC1□L□,AT 6926-9 SL ROHS,AT 6501-0 ROHS,AT 0303 ROHS,802H6560X182KPE-ROHS,AT 9402G-0 ROHS,AT 6948-0 SL ROHS,AT 23XXG SERIES,AT 6926-10 SL ROHS
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Knowles(楼氏电子)射频/微波产品选型指南
目录- Knowles Technology and Custom Design Overview DLI Brand Devices and Available Product Listing Technical Notes and Custom Configurations
型号- FPC06302,H100XHXS,PDW08607,PDW08605,PDW08606,B076MB6S,L288XC3S,PDW07630,PDW08604,B148LA2S,B280LB0S,B280MD1S,FPC07643,L220XH5S,B056MB5S,B099NC4S,B191KA1S,B080MB5S,B061MB6S,PDW07069,B033ND5S,B168MB1S,DEB-B274MB1S,DEB-B385MDOS,B083LB6S,L204XF4S,PDR05848,B119LB1S,B065NC5S,B210LA0S,J30BLBA032LX1,B084MC6S,B20BLSBN01,N016MD9S,B012MD5S,J30BJBA002LX3,B052NC5S,C079KB1S,PDR06120,L157XG3S,B148QF0S,H140XHXS,FPC10207,B350NB2S,B105MB5S,B114MB1S,PDW06984,PDR06390,B056RC4S,C142KB0S,PDW09692,B047MC5S,B094LA2S,FPC06630,FPC06078,B032ND5S,B102MC1S,B285LB2S,FPC06077,FPC06076,PDW07948,B119MB1S,B115NB4S,B111NC4S,B230LA0S,L254XF3S,PDR06380,FPC06075,FPC06074,FPC06073,B042OD4S,B142LA2S,B060NC5S,B145LB1S,B380KA1S,B274MB1S,FPC06882,B032OD5S,FPC06881,J30BJBA032LX1,B180MA1S,PDW06407,PDW06089,PDW06400,PDW06401,B192NB2S,J30XXBA002LX3,H120XHXS,B100RH2W,B220LA0S,B280LA0S,B280MC1S,N012ME9S,B118LB4S,B291MB0S,B070MB6S,B121MB4S,B040RG9S,B070NC5S,B393KD0S,J30BLBA002LX3,B095MB1S,AFL09387,B057MC5S,B20BHSBN01,FPC07183,FPC07182,FPC07181,B120MB1S,FPC07180,B021MC8S,FPC06149,L128XH4S,FPC07234,B024RF2S,B100MC5S,FPC06701,FPC06700,DEB-B259MC1S,PDW08324,PDW08323,B031ND5S,B207LA0S,H080XHXS,B116NC5S,H168XHXS,B100MH0W,FPC06154,FPC06153,PDW06933,FPC07803,FPC07802,L065XG9W,L065XG9S,B138LA2S,B138MB1S,B190MB1S,FPC06152,FPC06151,B055NC5S,FPC06150,B200LA0S,PDW06011,J30XXBA012LX4,J30BJBA022LX2,B058MD7S,FPC06164,B28BJBFN01,PDW05758,B089NC4S,B028RF2S,B260MB2S,FPC06719,B150OG0S,PDW06041,B385MD0S,B062MC55,L050XF9S,B149MC1S,B289KA0S,PDW06398,PDW06399,PDW06038,B381KD0S,J30BLBA012LX4,B040MB5S,B112MB1S,B240LA0S,FPC09291,B259MC1S,H160XHXS,B161LA0S,B038MC9S,B081RC0S,B250LA0S,B280MF1S,L185XF4S,B096QC2S,FPC06913,B305LA0S,B424MB1S,L157XF3W,B120RF0W,L060XD9S,L095XG9S,B479KB0S,L185XF4W,B120RF0S,B039NC5S,FPC07337,ADP09388,B160KA1S,B279KB1S,J30BLBA022LX2,H182XHXS,B144MB1S,PDW07691,B038NC4S,L117XH4S,B097MB0S,L117XH4W,B050ND4S,H026XHXW,B016MD6S,B28BHBFN01,B28BTBFN01,B127MB2S,B165LA1S,J30BJBA012LX4,H060XHXS
Knowles使用稳定的高Q值陶瓷来开发体积小、选择性高的陶瓷腔体低损耗带通滤波器
Knowles使用稳定的高Q值陶瓷来开发体积小、选择性高的陶瓷腔体低损耗带通滤波器。典型陶瓷腔体滤波器比使用波导技术设计的滤波器小30倍。通过多端口实现,Knowles可以创建一个非常小、稳定的滤波器,具有宽阻带性能,没有杂散模式。
【经验】解析平面滤波器工作频率正在扩展到毫米波范围
微带滤波器自1952年以来一直在做同样的事情。它们仍然是工程师工具包中最重要的滤波器类型,通过使用各种介电基板材料和设计技术,微带滤波器得到了增强。Smiths Interconnect本文解析平面滤波器工作频率正在扩展到毫米波范围。
楼氏电容开发的薄膜微带技术,可解决微带滤波器的损耗问题
与其他传输线或波导滤波方案相比,微带滤波器最大的问题在于损耗。随着高K值系列材料(如楼氏电容的PG、CF和CG陶瓷材料等)拓展,如今已能够开发出低损耗的微带传输线滤波器,例如楼氏电容表贴式带通滤波器B099NC4S。
938044空腔带通滤波器数据表
描述- 本资料为Knowles公司生产的腔体带通滤波器(P/N: 938044)的数据表。该滤波器具有SMA-Female连接器,工作频率中心频点为10250 MHz,提供良好的插入损耗、回波损耗和抑制比等性能指标。
型号- 938044
【技术】使用Knowles的CG材料和薄膜微带线技术,滤波器尺寸可减少20倍,具有-55°C至125°C的温度稳定性
Knowles所有的微带滤波器都具有以下主要优势:-55°C至125°C的温度稳定性;与典型PWB相比,使用Knowles的CG材料,滤波器尺寸减少了20倍,使用CF减少了10倍,使用PG减少了3倍;高可重复性,因为薄膜制造提供精确的制造性能而无需调谐。
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品牌:KNOWLES
品类:Multilayer Ceramic Chip Capacitor
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品牌:KNOWLES
品类:Multilayer Ceramic Chip Capacitor,
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品类:Multilayer Ceramic Chip Capacitor
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品类:Multilayer Ceramic Chip Capacitor
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现货: 2,500
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品类:Multilayer Ceramic Chip Capacitor
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品牌:KNOWLES
品类:Multilayer Ceramic Chip Capacitor
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品牌:KNOWLES
品类:Multilayer Ceramic Chip Capacitor
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品牌:KNOWLES
品类:Multilayer Ceramic Chip Capacitor
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品牌:KNOWLES
品类:Multilayer Ceramic Chip Capacitor
价格:¥4.9189
现货: 300
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可定制射频隔离器/环行器(10M-40GHz),双工器/三工器(30MHz/850MHz-20GHz),滤波器(DC-20GHz),功分器,同轴负载,同轴衰减器等射频器件;可定制频率覆盖DC~110GHz,功率最高20KW。
最小起订量: 1 提交需求>
可定制电感可承受4.5KV高压,可适配于30MHz高频应用;支持平共模电感、谐振电感、PFC电感、大电流直流电感等产品电压/频率等参数性能定制;通过AECQ-200认证。
最小起订量: 100000 提交需求>
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