射频同轴电缆

RF Coaxial Cable,MIL-C-17,RG-178/179/316,RF,Coaxial Cable,射頻同軸電纜,高頻超高頻通訊場合,高傳輸性能要求,RG,類,Military Specification,MIL-C-17,線材結构材料机械物理性能和傳輸性能,LTK,主要產品,RG-178,RG-179,RG-316,標准產品&衍生產品,國際標准產品結构對照,RG-178,厂商,項目,Madison,Huber+,Suhner,Harbour,Beldon,MIL-C-17,導体,SPC,7/0.1,SPCCS,7/0.1,SPCCS,7/0.1,SPCCS,7/0.1,SPCCS,7/0.1,絕緣,FEP,0.83,PTFE,0.83,PTFE,0.838,TFE,0.838,TFE,0.838,屏蔽,鍍銀編織,0.1,x96%,鍍銀編織,95%,鍍銀編織,0.1,x95.9%,鍍銀編織,96%,鍍銀編織,0.1,x95.9%,外被,FEP,1.80,FEP,1.80,FEP,1.80,FEP,1.80,FEP,1.80,國際標准產品結构對照,RG-179,厂商,項目,Madison,Huber+,Suhner,Harbour,Beldon,MIL-C-17,導体,SPC,7/0.1,SPCCS,7/0.1,SPCCS,7/0.1,SPCCS,7/0.1,SPCCS,7/0.1,絕緣,FEP,1.6,PTFE,1.55,PTFE,1.6,TFE,1.57,PTFE,1.6,屏蔽,鍍銀編織,0.1,鍍銀編織,93%,雙層鍍銀編織,0.1,x93%,x94%,鍍銀編織,95%,鍍銀編織,0.1,x92.3%,外被,FEP,2.49,FEP,2.54,FEP,2.84,FEP,2.54,FEP,2.54,國際標准產品結构對照,RG-316,厂商,項目,Times-microwave,Huber+,Suhner,Harbour,Beldon,MIL-C-17,導体,SPCCS,7/0.17,SPCCS,7/0.18,SPCCS,7/0.17,SPCCS,7/0.17,SPCCS,7/0.17,絕緣,PTFE,1.52,PTFE,1.55,PTFE,1.52,TFE,1.47,PTFE,1.52,屏蔽,鍍銀編織,0.1,鍍銀編織,96%,鍍銀,編織,鍍銀編織,96%,鍍銀編織,0.1,x95.2%,外被,FEP,2.49,FEP,2.5,FEP,2.49,FEP,2.5,FEP,2.49,國際標准產品性能對照,RG-178,厂商,Harbour,Times-,microwave,Beldon,Huber+,Suhner,MIL-C-17,項目,特性阻抗,ohm,50+/-2,50+/-2,50(,nom.),50+/-2,50+/-2,傳輸數率%,70,69.5,69.5,69,69.5,衰減,MHz,dB/m,50,/,0.318,0.344,0.326,0.38,100,0.426,0.452,0.459,0.468,0.525,200,/,0.641,0.623,0.676,0.756,400,0.892,0.911,0.918,0.982,1.082,700,/,1.212,1.214,1.339,1.442,900,/,1.387,1.394,1.542,1.641,1000,1.449,1.456,1.509,1.638,1.705,1800,/,1.970,2.076,/,2.345,3000,/,2.570,/,/,3.082,國際標准產品衰減曲線,RG-178,國際標准產品性能對照,RG-179,厂商,Harbour,Beldon,Huber+,Suhner,MIL-C-17,項目,特性阻抗,ohm,75+/-3,75(,nom.),75+/-3,75+/-3,傳輸數率%,70,69.5,69,69.5,衰減,MHz,dB/m,50,/,0.279,0.188,/,100,0.262,0.328,0.268,/,200,/,0.410,0.385,/,400,0.508,0.525,0.556,0.689,700,/,0.646,0.753,/,900,/,0.731,0.864,/,1000,0.875,0.787,0.916,/,國際標准產品衰減曲線,RG-179,國際標准產品性能對照,RG-316,厂商,Huber+,Suhner,Harbour,Times-,microwave,Beldon,MIL-C-17,項目,特性阻抗,ohm,50+/-2,50+/-2,50+/-2,50(,nom.),50+/-2,傳輸數率%,69,69.5,69.5,69.5,69.5,衰減,MHz,dB/m,50,0.176,/,0.184,0.184,0.246,100,0.251,0.249,0.262,0.272,0.361,200,0.361,/,0.373,0.394,0.493,400,0.521,0.524,0.531,0.574,0.689,700,0.704,/,0710,0.777,0.913,900,0.808,/,0.810,0.895,1.033,1000,0.856,0.859,0.856,0.951,1.246,2000,/,/,1.223,/,1.530,3000,/,/,1.531,1.758,1.902,國際標准產品衰減曲線,RG-316,LTK,標准產品,Teflon,鍍銀線編織,鍍銀銅包鋼,Teflon,LTK,標准產品結构,產品,RG-178,RG-179,RG-316,項目,導体,SPCCS,7/0.1,SPCCS,7/0.1,SPCCS,7/0.17,絕緣,Teflon,FEP,FEP,屏蔽,鍍銀編織,鍍銀編織,鍍銀編織,外被,FEP,1.80,FEP,2.54,FEP,2.44,RF,同軸線測試方法,測試儀器,TDR:,Tek,11801C,NA:HP 8753ES,測試方法,Beldon,50ohm&75ohm Coaxial Testing,測試項目,Impedance,Delay(VP),Attenuation,RL(&VSWR),LTK,標准產品傳輸性能,RG-178,MHz,衰減(,dB/m),RL,(dB),阻抗,(,ohm),延時,(,ns/m),50,0.3178,32.66,TDR,51.83,/,100,0.4278,36.59,4.53,200,0.6199,36.28,4.50,400,0.9026,33.36,4.50,700,1.2268,30.48,VP:,66.5%,900,1.4078,32.72,1000,1.4919,33.14,1800,2.0804,31.92,3000,2.7847,26.79,RG-178,衰減對比,RG-178,回波損耗測試圖形,LTK,標准產品傳輸性能,RG-179,MHz,衰減(,dB/m),RL,(dB),阻抗,(,ohm),延時,(,ns/m),50,0.187,35.85,TDR,72.1-77.5,4.70,100,0.251,35.00,4.70,200,0.366,38.31,4.69,400,0.539,33.83,VP:,64%,600,0.609,37.00,700,0.733,28.75,800,0.789,32.86,900,0.839,42.37,1000,0.888,36.09,RG-179,衰減對比,RG-179,回波損耗測試圖形,LTK,標准產品傳輸性能,RG-316,MHz,衰減(,dB/m),RL,(dB),阻抗,(,ohm),延時,(,ns/m),50,0.171,33.52,TDR,49.2-53.2,4.68,100,0.260,30.67,4.69,200,0.382,37.76,4.69,400,0.553,31.94,VP:,64%,700,0.754,30.73,900,0.865,28.87,1000,0.921,40.67,2000,1.358,35.39,3000,1.725,20.91,RG-316,衰減對比,RG-316,回波損耗測試圖形,衍生產品-鍍銀導体,Teflon,鍍銀線編織,鍍銀銅線,Teflon,產品結构,產品,RG-178,RG-179,RG-316,項目,導体,SPC,7/0.1,開發中,開發中,絕緣,PFA,屏蔽,鍍銀編織,外被,FEP,1.80,RG-178,衰減對比,衍生產品-雙層編織,Teflon,編織1:鍍銀線,鍍銀銅包鋼,Teflon,編織2:鍍銀線,屏蔽效應使用頻率,產品結构,產品,RG-179,RG-316,項目,導体,SPCCS,7/0.1,SPCCS,7/0.17,絕緣,FEP,FEP,屏蔽,雙層鍍銀編織,雙層鍍銀編織,外被,FEP,2.90,FEP,2.90,Thank you!,傳輸性能名詞解釋,特性阻抗,無反射理想回路的任一點的電壓與電流的比值,均勻線路有固有的阻抗,是由線路的一次參數和所發送的信號頻率決定與線路長度傳輸的電壓電流大小及所連接負載/設備無關,電纜的特性阻抗對于系統內的阻抗匹配非常重要,單位為“,”。,衰減,衰減表征因線路的材料等原因而引起的信號損失.由兩部份組成一為介質內偶極子受交變電場作用做取向運動引起的介質損耗一為導體上熱磁渦流及導體發熱引起的能量損失。單位為“,dB/m”。,線路衰減越低通信距離就越長。但通訊距離受信號傳輸時間限制以免影響通訊質量。,傳輸性能名詞解釋,反射衰減(回波損耗),由于材料結構尺寸與製造工藝(絕緣押出量不均牽引輪偏心收放線轉動不均勻)等缺陷和分散性的影響造成阻抗沿長度的分佈是不均勻的。電磁波在線路上傳輸遇到不均勻點產生多次反射奇次反射波回到發射端會引起輸入阻抗的變化並引起主波信號功率變化產生衰減頻率特性波動引起信號失真。偶次反射波形成伴流滯後並迭加在主波上造成干擾尤其脈沖信號傳輸時會引起波形畸變造成信號失真。尤其存在周期性不均勻時影響最為嚴重。,傳輸性能名詞解釋,延時/延時差,線路中單位長度電磁波傳播所需時間單位“,ns/m”。,對于線對內或線對間的芯線電磁波傳播延時的差值。,波速比(,or,速度因子,or,傳輸數率)電磁波在線路的介質中傳播速度與在真空中傳播速度的比值。,傳輸性能名詞解釋,