【新】Femto电路中抗干扰的优化方案-铁氧体吸波材料
随着电子技术的飞速发展,几乎所有的电子设备和设施都是辐射源,导致电磁能量越来越集中。同时,这些电子设备和设施也是最容易受到干扰的对象。Femto就是这样的电子设备。Femto RF电路板简易框图见图1。
图1:Femto RF电路框图
图1不是太直观,实际上,在电子设备例如Femto的 PCB板材上,匹配微带线相当于天线,存在一定的辐射损耗和耦合,从而对电路上的其他器件产生干扰。同时,电子设备的对外天线也很可能收到别的设备干扰和干扰别的设备,使得电子设备不能正常工作。所以电磁兼容(EMC)对于电子设备是非常重要的。
EMC主要还是在电路设计中解决。成本允许的条件下,PCB板层越多,则越方便走线,大面积铺地对EMC是非常有利的。但实际情况并没有这么理想。在电路设计中,若是屏蔽和滤波等途径都无法达到非常好的抗干扰效果时,不妨尝试使用吸波材料来进一步优化。在这里主要介绍LAIRD铁氧体吸波材料。铁氧体材料能提供简单的、成本有效控制的辐射和电感耦合电磁干扰解决方案。
Laird铁氧体吸波材料特征:
• 安装方便
• 每个量产型号永不停产,双面3.5mil丙烯酸粘合剂以及218OZ/2英寸粘合
• 样品和样品包具有可移除和重复使用的胶粘剂,防止错误使用
• 提供不同尺寸
• 可定制
图2:Laird铁氧体材料
Laird铁氧体材料主要有圆盘和方形两种,如图2。PCB焊接后,铁氧体材料可以直接安装在EMI源端(例如有源器件或不需要的天线)来吸收干扰信号。此外,Laird铁氧体材料也可以用于排查干扰源。
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【选型】Laird(莱尔德) 电磁屏蔽材料选型指南
LAIRD - 微波吸收材料,全网格EMI屏蔽套,泡棉,泡棉材料,金属屏蔽衬垫,橡胶垫片金属浸渍材料,通风孔盖板,导电橡胶材料,接头垫片,电磁屏蔽材料,EMI屏蔽套,泡棉I/O导电垫衬,导热吸收材料,混合压制品,表面波吸收器,导热吸波二合一材料,压制品,网状泡沫吸收器,超柔铍铜合金屏蔽套,针织导电衬垫,导电弹性体,吸波材料板级屏蔽罩,板级屏蔽罩,导电织物,EMI垫圈,导向线,金属浸渍材料,环保型泡棉衬垫,导电胶带,导电网带,垫片,导电接地EMI垫圈,导电橡胶,橡胶垫片,泡沫吸收器,标准设计屏蔽罩,构件,导电织物屏蔽胶带,带有弹性内核的EMI垫圈,模切垫片,8904-0117-XX,4693-PA-51H-01200,002X114,8516-0201-XX,8907-0174-XX,8403-0106-50,43552,8563-0213-XX,ECE080/094,8403-0105-XX,8901-0117-XX,4500,4501,4502,8412-01XX-54,D6-785FX,8412-01XX-52,8408-0251-XX,4520,8412-01XX-55,8412-01XX-50,4518,8904-0129-XX,8103-0101-40,4512,4513,4516,4517,4693 - PA - 51H - 01200,8563-0131-XX,4531,8401-0155-XX,8412-01XX-61,8412-01XX-60,8560-0143-XX,4529,4N64EF51N00225,8103-0125-40,4522,8907-0129-XX,4524,4525,8908-0180-XX,4528,DS005,2238 -.25,8103-0113-40,8563-0077-XX,BMI-S-207-F,4541,4542,4N64ER51N00225,8104-01XX-48,8104-01XX-49,8908-0118-XX,8415-0110-64,87-580,4532,86-785,BMI-S-305,4533,4534,4536,SNK60,4537,8401-0123-XX,SNC70-RXP,009X009,009X008,009X007,8401-0111-XX,009X005,009X004,009X003,8905-0180-XX,G1W,009X002,009X001,8902-0135-XX,8904-0105-XX,8563-0089-XX,8860-0093-100-XX,4548,009X013,009X012,009X011,009X010,8409-0106-50,8414-0108-64,8563-0143-XX,4570,4571,8563-0106-XX,4572,4573,4575,8860-0093-324-XX,8416-0320-22,5206 -.25,8563-0090-XX,2388,8904-0137-XX,4568,4569,8404-0118-XX,8912-0140-XX,8416-0120-23,8101-01XX-49,8101-01XX-48,8550-XXXX-YY-ZZ,4582,8101-01XX-47,4583,4100,4584,8101-0102-40,8101-01XX-41,5092 - S,8101-01XX-40,8416-0320-21,4577,4579,4591,8410-0107-50,8890-MGS103072-93,4593,4110,4594,4111,4112,4596,4113,4597,8414-0104-64,2240 -.25,8911-0102-XX,4105,4106,8104-0106-40,4120,4121,8906-0116-XX,4123,8860-0093-300-XX,4114,4115,4599,8102-0209-40,4117,8406-01XX-55,4131,8406-01XX-54,8907-0109-XX,4133,4134,8416-0120-57,T1G,M83528/002X011,M83528/002X012,M83528/002X013,8401-0103-XX,M83528/002X014,M83528/002X015,M83528/002X017,M83528/002X018,M83528/002X019,8406-01XX-60,4126,8563-0257-XX,8862-0105,SNN60-RXP,8910-0125-XX,8406-01XX-61,8862-0100,87580,8413-0103-64,4142,4143,8860-0032-150-XX,M83528/002X020,M83528/002X021,M83528/002X022,M83528/002X024,M83528/002X026,8402-0104-XX,M83528/002X028,4136,8406-01XX-52,8909-0168-XX,8406-01XX-50,4150,4157,8904-0125-XX,SNL60-RXP,007X004,8903-0156-XX,007X002,007X001,8560-0097-XX,007X007,007X006,007X005,4148,4161,4163,4164,8412-0102-50,8563-0327-XX,8904-0170-XX,8563-0069-XX,4168,8901-0130-XX,4160,221,MIL-DTL-83528,M83528/002X006,M83528/002X007,8103-0105-40,4158,8862-0114,8862-0113,8862-0112,4172,4173,4176,8907-0157-XX,4179,8906-0107-XX,4170,8903-0177-XX,4171,89XX-01XX-43,89XX-01XX-42,8918-0135-XX,89XX-01XX-40,4169,8860-0100-100-XX,4184,4186,8104-0109-40,4189,4181,8864-3714,4182,8864-3715,8401-0127-XX,2238 - 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易密斯(EMS)EMI电磁干扰屏蔽材料选型指南(中文)
易密斯主营铍铜簧片、不锈钢弹片、SMD接地弹片和其他各种EMI电磁屏蔽材料,广泛应用于5G通讯、医疗设备、暗室屏蔽门、新能源汽车电子、智能家居、半导体等行业。截至目前,已服务于全球2200+家优质客户。
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【选型】Laird(莱尔德) 完整的EMI及导热选型指南
导热垫片 导热硅脂T-grease 导热电绝缘材T-gard 相变材料T-pcm EMI材料
LAIRD - 通风板,泡棉,导热硅胶片,导热硅脂,导热垫片,屏蔽罩,导电橡胶条,点胶,相变材料,EMI材料,制冷芯片,导热绝缘材料,导热电绝缘材,吸波材料,金属簧片,石墨片,5000,TPCM 920,3000,210,TPCM200SP,2500,T-PUTTY502,TPCM910,TPCM588,TPCM583,TPCM780,K52,TPCM5816,TPCM905C,880,T-FLEX200VO,980,T-FLEX600,300X,1500,TPCMHP105,T-FLEX500,500,228,T-PLI-200,国防工业,消费电子,电力电子,移动终端,通信设备,移动通信,工业电子,电脑,工业自动化,健保医疗,交通运输,汽车电子,娱乐设备
汽车领域电磁干扰问题吸波材料可为解决
汽车电驱控制器内部包括嵌入式控制板、驱动板、PCB、DC-DC开关管、逆变器、IGBT等功率器件,这些集成电路和高频开关在工作中会产生大量的电磁干扰,这时吸波材料在汽车领域就可以有效地解决这些电磁干扰问题。除了电路的优化、滤波技术、电磁屏蔽材料外,还可以使用电磁波吸收材料,简称吸波材料。
【技术】解析Laird吸波材料分类和选型主要参数
Laird吸波材料的吸波能力较强,吸收频带较宽,是目前应用最为广泛的吸波材料类型。
【选型】莱尔德BSR吸波材料用于ADAS射频模块的电磁波信号屏蔽,吸波频段6~40+GHz
针对10G的电磁波干扰问题,推荐使用Laird(莱尔德)BSR吸波材料,BSR是一种轻薄的、高损耗的、不导电的硅树脂材质吸波材料。吸波频段在6~40+GHz,该材料吸波频段较宽,吸收能力较强,可有效解决电磁杂讯干扰问题。并具有低放气性能和耐高温性。
Z-L40F04000AA**圆形混合SPE工业4P,卡口插座PCB侧,DIP引脚
本资料详细介绍了Z-L40F04000AA*G型号的圆形混合SPE工业4P插座式连接器,包括其物理特性、机械特性、电气规格、防水等级、环境适应性等。资料中涵盖了连接器的材料、尺寸、接触电阻、绝缘电阻、耐压、电流承载能力、传输速度、电磁屏蔽性能等关键参数。此外,还提供了连接器的PCB布局图和颜色编码区域信息。
正凌 - Z-L40F04000AA**
【选型】Laird(莱尔德)EMI屏蔽产品选型指南
空心圆屏蔽套 带鳍空心圆屏蔽套 空心双圆屏蔽套 带有PSA超柔屏蔽套 鳍单圆垫圈 单鳍双圆垫圈 立方体垫圈 圆柱垫圈 带有PSA的密封垫圈 带有PSA的双密封垫圈 超柔导电材料 海绵内芯长方体垫圈 海绵内芯圆柱垫圈 有机硅管圆柱垫圈 单鳍海绵内芯垫圈 双鳍海绵内芯垫圈 有机硅管单鳍垫圈 有机硅管双鳍垫圈 导电接地EMI垫圈 导电网带 超柔编制垫圈
LAIRD - 圆柱垫圈,带有海绵弹性芯的单鳍,带鳍空心圆屏蔽套,空心双圆屏蔽套,海绵内芯长方体垫圈,立方体垫圈,导电EMI垫圈,超柔屏蔽套,针织导电EMI垫圈,编织屏蔽罩,屏蔽套,密封EMI材料,海绵内芯圆柱垫圈,导电网垫圈装配,弹性内芯垫圈装配,EMI导电泡棉,导电密封EMI垫圈,垫圈,导电接地EMI垫圈,有机硅管圆柱垫圈,带有弹性内核的EMI垫圈,有机硅管单鳍垫圈,单鳍双圆垫圈,编织导电EMI垫圈,全网格EMI屏蔽套,超柔导电材料,带海绵弹性芯的圆柱,超柔编织垫圈,电磁屏蔽材料,带双鳍的有机硅弹性管,柔性铍铜合金垫圈屏蔽材料,有机硅管双鳍垫圈,鳍单圆垫圈,带单鳍的有机硅弹性管,单鳍海绵内芯垫圈,超柔屏蔽材料,EMI垫圈,超柔编制垫圈,导电垫片,带有机硅弹性芯的圆柱,编织导电 EMI 垫圈,双屏蔽带密封条,带有PSA超柔屏蔽套,密封带,导电网屏蔽垫圈,双鳍海绵内芯垫圈,带海绵弹性芯的双鳍,导电网带,带有海绵弹性芯的长方体,8401-0142,8904-0117-XX,8902-0156,8902-0150,8909-0118,8404-0121-XX,8906-0171-XX,8907-0140-XX,8410-0105-55,8104-0104-40,8410-0105-50,8908-0108-XX,8405-0103-50,8918-0175,8401-0133-XX,8902-0140,8910-0108,8910-0102,8406-0106-50,8910-0105,8907-0174-XX,8909-0125,8417-3064-62,8401-0155,8909-0122,8403-0106-50,8902-0174,8902-0176,8403-0105-XX,8901-0117-XX,8902-0171,8902-0170,8915-0130-XX,8901-0176-XX,8918-0105-XX,8910-0122,8413-0105-64,8415-0112-64,8904-0129-XX,8901-0140-XX,8103-0101-40,8910-0125,8417-3052-62,8401-0121-XX,8909-0145,8901-0107,8401-0155-XX,8103-0125-40,8907-0129-XX,8901-0101,8901-0102,8405-01,8909-0157,8908-0180-XX,8103-0113-40,8909-0170,8415-0110-64,8908-0118-XX,8901-01,8417-3054-62,8909-0122-XX,843,8406-0116-50,8905-0157-XX,8909-0168,8401-0123-XX,8903-0171-XX,8401-0111-XX,8905-0180-XX,8409-0173-50,8902-0135-XX,8904-0105-XX,8903-0177,8903-0175,8903-0176,8909-0175,8903-0171,8909-0174,8909-0178,8902-0101-XX,8101-0104-40,8409-0106-50,8414-0108-64,8402-0102-XX,8403-0115-XX,8903-0180,8401-0113-XX,8904-0137-XX,8401-0126-44,8404-0118-XX,8912-0140-XX,8412-0104-50,8903-0122-XX,8101-0102-40,8417-3050-62,8415-01,8103-0103-40,8909-0178-XX,8101-01,8410-0107-50,8908-0157-XX,8406-0104-50,8414-0104-64,8903-0110-XX,8911-0102-XX,8403-01,8104-0106-40,8401-0101-XX,8401-0114-42,8103-0115-40,8906-0116-XX,8300-0100-44,8402-0106-XX,8908-0101-XX,8102-0209-40,8902-0108-XX,8907-0107-XX,8413-0103-56,8907-0109-XX,8902-0110,8403-0107-XX,8406-0102-50,8916-0135-XX,8417-3072-62,8401-0103-XX,8906-0175-XX,8902-0117,8902-0116,8104-0108-40,8902-0118,8910-0125-XX,8905-0116-XX,8413-0103-64,8909-0102-XX,8902-0102,8902-0101,8908-0177-XX,8401-0137-XX,8404-0108-XX,8910-0140,8402-0104-XX,8912-0150-XX,8414-0106-64,8902-0108,8102-0207-40,8902-0107,8909-0168-XX,8902-0109,8902-0135,8902-0137,8910-0178,8417-3,8904-0125-XX,8910-0174,8903-0156-XX,8917-0130,8901-0107-XX,8906-0118-XX,8902-0122,8405-0101-50,8412-0102-50,8904-0170-XX,8912-0117-XX,8901-0130-XX,8402-0103,8402-0102,8402-0101,8909-0105,8413-01,8402-0107,8406-0114-50,8402-0106,8103-0105-40,8402-0105,8907-0176-XX,8402-0104,8909-0108,8402-0109,8402-0108,8902-0129,8417-3062-62,8401-0125-XX,8909-0102,8909-0101,8103-01,8907-0157-XX,8906-0107-XX,8903-0177-XX,8912-0102-XX,8103-0106-40,8918-0135-XX,8904-0168,8402-0109-42,8403-0112-XX,8104-0109-40,8406-0101-50,8904-0171,8401-0127-XX,8904-0170,8904-0175,8904-0178,8402-0108-XX,8904-0177,8904-0176,8911-0145-XX,8404-0115-XX,8908-0178,8103-0118-40,8908-0177,8908-0174,8907-0180-XX,8403-0101-42,8902-0150-XX,8401-0115-XX,8904-0180,8412-01,8406-0113-50,8908-0180,8406-0101-55,8905-0137-XX,8910-0140-XX,8908-0168,8412-0106-50,8904-0168-XX,8403-0101-50,8409-0158-50,8913-0140-XX,8415-0106-64,8908-0170,8908-0171,88401-0108,8909-0105-XX,8904-0129,8902-0117-XX,8404-0105-XX,8401-0117-XX,8406-0111-50,8904-0156-XX,8409-0168-50,8904-0110-XX,8904-0125,8904-0130,8417-3060-62,8910-0105-XX,8415-0104-64,8902-0140-XX,8904-0137,8907-0101-XX,8403-0109-XX,8300-0038-44,8906-0109-XX,8103-0108-40,8911-0135-XX,8901-0110-XX,8905-0175-XX,8904-0145,8401-0105-XX,8403-0110-XX,8902-0174-XX,8102-0205-40,8917-0130-XX,8414-0103-64,8401-0118-42,8417-3059-62,8913-0150-XX,8904-0178-XX,8902-0129-XX,8904-0157,8904-0156,8300-0225-44,8912-0122-XX,8911-0117,8908-0118,8404-0101-XX,8414-0111-64,8410-01,8409-0126-50,8906-0156-XX,8901-0140,8409-01,8401-0107-XX,8908-0101,8102-0203-40,8906-0110-XX,8901-0137,8907-0137-XX,8908-0109,8908-0107,8911-0125,8403-8XXX-XX,8908-0108,8911-0122,8901-0130,8401-144-XX,8901-0156-XX,8903-0175-XX,8915-0150-XX,8904-0109-XX,8417-3055-62,8403-0114-XX,8901-0116,8903-0116-XX,8901-0117,8901-0118,8901-0168-XX,8902-0170-XX,8908-0171-XX,8911-0108,8101-0108-40,8401-0129-XX,8410-0102-55,8911-0102,8409-0102-50,8401-0108-42,8410-0102-54,8409-0161-50,8410-0102-50,8906-0178-XX,8901-0110,8901-0102-XX,8908-0157,8910-0174-XX,8901-0180,8904-0107-XX,8905-0177-XX,8911-0108-XX,8401-0109,8401-0107,8401-0105,8401-0106,8401-0103,8401-0104,8401-0101,8401-0102,8918-0135,8414-0101-64,8403-0103-50,8403-0102-XX,8417-3057-62,8902-0137-XX,8904-0130-XX,8901-0170,8907-0170-XX,8101-0106-40,8904-0176-XX,8401-0118,8401-0119,8409-0104-50,8401-0116,8901-0177,8401-0117,8401-0114,8401-0115,8401-0112,8401-0113,8401-0110,8401-0111,8410-0104-50,8901-0176,8401-0120,8918-0105,8404-0103-XX,8909-0174-XX,8401-0119-XX,8911-0130,8104-0102-40,8911-0135,8401-0129,8401-0127,8401-0125,8901-0168,8401-0126,8401-0123,8401-0124,8401-0120-XX,8401-0121,8401-0122,8417-3067-62,8401-0131,8908-0122,8103-0111-40,8906-0168-XX,8908-0129,8908-0125,8911-0140,8911-0145,8406-0108-50,8406-0131-50,8415-0102-64,8901-0156,8401-0137,8401-0134,8401-0142-XX,8401-0133,8412-0101-50,8908-0178-XX,8906-0180,8409-0117-50,8903-0125-XX,8103-0112-40,8905-0109-XX,8909-0101-XX,8413-0104-64,8902-0156-XX,8404-0109-XX,8902-0110-XX,8417-3053-62,8906-0178,8904-0175-XX,8401-0122-XX,8906-0174,8906-0175,8906-0177,8906-0170,8906-0171,8914-0130,8403-0107-50,8417-3065-62,8907-0116-XX,8905-0107,8403-0106-XX,8901-0118-XX,8905-0102,8905-0178-XX,88403-0114,8914-0150-XX,8906-0168,国防工业,机车,医疗设备,运动设备,其它通信设备,电力,电力电子,移动终端,移动通信,电脑,电脑外设,可再生能源,工业自动化,工业伺服,健保医疗,交通运输,国防工业设备,轨道交通,健康设备,汽车电子,娱乐设备
汽车电子抗电磁干扰和散热问题难解决?莱尔德帮你搞定!
二十年来,莱尔德材料科学专家成功为领先的汽车供应商们解决了复杂的电子设计难题,所提供的方案能够高效解决电磁干扰和散热的要求。作为专业的电磁屏蔽和散热解决方案设计者,莱尔德帮助客户的设计师避免精力和成本浪费,加快关键汽车零部件推向市场的时间。
雷达探测系统故障
本资料主要介绍了Laird公司在雷达探测系统领域的相关产品和技术。内容包括雷达探测系统的外壳材料、热界面材料、电磁屏蔽材料、吸波材料、多功能解决方案等。资料详细介绍了Laird公司提供的各种产品,如热界面材料、电磁屏蔽材料、吸波材料、多功能解决方案等,并提供了相关产品的应用场景和性能特点。
LAIRD - 指托触点,多层PCB组装,THERMAL INTERFACE MATERIALS,BLS,ECEAND NCE ELASTOMER GASKETING,CONDUCTIVE FOAM SEALS,弹簧触点,SPRING CONTACTS,ECE和NCE弹性体衬垫,COVERS,微通道板,射频和微波吸收剂,ECEAND NCE ELASTOMER SEALS,PRECISION METALS,ECE和NCE弹性体密封件,导电泡沫密封件,MULTI-TIER PCB ASSEMBLY,热界面材料,FINGERSTOCK CONTACTS,RF & MICROWAVE ABSORBERS,精密金属,磁性陶瓷制品,劳工统计局,盖子,CONDUCTIVE FOAM GASKETING,导电泡沫衬垫,MAGNETIC CERAMIC PRODUCT,MCP,OUTDOOR CAMERA BASE STATION,雷达探测系统,室外摄像机基站,RADAR DETECTION SYSTEM
Laird电磁屏蔽材料:采用专有涂层技术,有效性在10GHz时可达120dB
Laird电磁屏蔽材料包含吸波材料、导电橡胶、泡棉、导电胶、导电布、金属簧片、屏蔽罩、金属织网、磁珠和电感。导热吸波CoolZorb 600高导热系数5.0W/m-K,低挥发Outgassing (TML) 0.15%,严苛环境下确保高可靠性。导电橡胶可提供体电阻低至0.002Ω cm,屏蔽效果高达120dB,压缩率可至45%产品。吸波材料BSR-1超薄至0.25mm,杂波吸收频率大于6GHZ。
电子商城
服务
提供电子电气产品的辐射骚扰测试、辐射抗干扰测试,以及RFID,SRD,2G,3G,4G等无线产品的辐射骚扰测试、辐射杂散测试、辐射功率测试以及辐射抗干扰测试。测试频率可覆盖9KHz-26.5GHz。
实验室地址: 深圳 提交需求>
可定制高密度编组屏蔽电缆的材质、工作电压30-300V、工作温度80-90℃、芯对数和截面积、尺寸长度,阻燃对应UL:VW-1规格,电气用品安全法F-mark阻燃规格,对应UL·CSA·NEC·PSE等各种海外规格,符合欧盟RoHS。
最小起订量: 3000m 提交需求>
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