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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,R BLOCK,LNA,BPF2,1st mixer IRFI1,则榜心+图“Q图“期,ig 1-1 Rx block,Although RX part circuit design base on 50ohm,but also,need matching circuit,instead of connect directl,Because of the impedance is not 50ohm for all,frequency in one cell circuit.Therefore,one cell circuit,connect another cell the cascaded response might be,much different than we anticipate,especially at the out,of band area,Respectively,Fig 1-2-Fig 1-4 is BPFL,LNA,BPF2,Schematic,and Fig 1-5 is BPFI+LNA+BPF2 united,chematic,Schematic of Bpf,C511,10,CON2,1000,R503,C503,C501,c50,c506,C507,D501|L502,BIgA2BPElScH,Schematic of lna,C405,C4,31o,NC,33uF0.068u,C404,a0215p,AT41511,BgBlNASchemat,Schematic of BPF2,1000,100K,10K,100K,6,:22pF,即pF2,BPF|+LNA+BPF2,Unite 47nH and 33nH,1-5 BPFI+LNA+BPF2 schematic,MATCHING,change one capacitance C419:I5pF-12pF,in order to,Compare the united circuit with each cell circuit,we onl,improve H channel lP3.There is 5 samples unite circuit,test data as follow.,S-PARAMETER TEST DATA L,15,MHz,NiNininiai 0,BPFLNA,唐20,565MH,dB(“BPFLNA1y1#,1)=-12,日 PFLN171萨,60,80,o m,100,OOOO0OO000O000000c。d,8ad吕SS古扮8,freq GHz,Fi/6 BPEYALNAABPE chant,sissies 13.,00,zL,at least galn,品品品岛127,鹗兽兽兽,13113213314135136137138139140,fred.MHz,Fig 1-7 BPFI+LNA+BPF2 L channel Test,问040,362MH,der iPFLNA1Y3#,=8,dzLnm,泛乏乏,D,freq,GHz,Fig 1-8 BPFI+LNA+BPF2 L channel Isolation Test,
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