Version 4
SHEET 1 880 680
WIRE 0 48 -112 48
WIRE 208 48 80 48
WIRE 224 48 208 48
WIRE 400 48 320 48
WIRE 512 48 480 48
WIRE 224 80 160 80
WIRE 368 80 320 80
WIRE -112 96 -112 48
WIRE 16 112 16 96
WIRE 64 112 64 96
WIRE 160 128 160 80
WIRE 368 128 368 80
WIRE -304 144 -304 128
WIRE -304 240 -304 224
WIRE -112 240 -112 176
FLAG -112 240 0
FLAG 368 128 0
FLAG 160 128 0
FLAG 512 48 0
FLAG 16 112 0
FLAG 64 112 s
FLAG -304 240 0
FLAG -304 128 s
FLAG -112 48 1
FLAG 208 48 2
SYMBOL voltage -112 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 124 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 1 0.75G)
SYMATTR SpiceLine Rser=50
SYMBOL tline 272 64 R0
SYMATTR InstName T1
SYMATTR Value Td=1n Z0=50
SYMBOL sw -16 48 R270
SYMATTR InstName S1
SYMBOL voltage -304 128 R0
WINDOW 3 -14 158 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 24 124 Left 2
SYMATTR InstName V2
SYMATTR Value PWL(0 1 4.5n 1 4.51n 0)
SYMBOL res 384 64 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -6 60 VBottom 2
SYMATTR InstName R1
SYMATTR Value 100m
TEXT -304 -32 Left 2 !.tran 0 50n 0 1p
TEXT -24 280 Left 2 !.model sw sw(Ron=1m Roff=1T Vt=0.5)
TEXT 112 8 Left 2 ;Ia(T1)
TEXT -48 -96 Left 2 ;f0=250MHz  3*f0=750MHz
LINE Normal 160 48 144 32 2
LINE Normal 144 64 160 48 2