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lnx5670
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5760lnx.ckt
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1994-01-13
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6KB
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255 lines
* File \mh\lna\5760lnx.ckt
* 5760 PHEMT preamp using the NEC 32684A
* bias 2 volts at 10 mA
* ATF 10135 2nd stage
* Can use either as a single stage preamp
* nominally 50 ohms input/output impedances
LL:15MIL
* extra source lead length--in addition to
* the lead going through the 15 mil 5880 Duroid
W50:46MIL
* width of 50 ohm microstrip
WBIAS:20MIL
PBIAS:350MIL
* dimensions of the bias microstriplines
* Set of variables for optimally matching the PHEMT
* for noise figure and return loss
WIS:?130MIL?
PIS:?148MIL?
WIN:?38MIL?
PIN:?246MIL?
WOUT:?54MIL?
POUT:?226MIL?
WOS:?30MIL?
POS:?42MIL?
* PHEMT amplifier circuit
BLK
TRL 1 2 W=W50 P=300MIL SUB1
SLC 2 3 L=0.3NH C=10PF Q=4 F=6GHZ
TRL 3 4 W=W50 P=20MIL SUB1
CROSS 4 10 20 100 W1=46MIL W2=WIS W3=WIN W4=WBIAS SUB1
OST 10 W=WIS P=PIS SUB1
TRL 20 25 W=WIN P=PIN SUB1
TRL 25 30 W=20MIL P=5MIL SUB1
TRL 100 105 W=WBIAS P=PBIAS SUB1
TEE 110 118 105 W1=50MIL W2=50MIL W3=WBIAS SUB1
TRL 110 112 W=50MIL P=20MIL SUB1
SRL 112 114 R=51 L=2NH
TRL 114 116 W=50MIL P=50MIL SUB1
SLC 116 0 L=.4NH C=1000PF
OST 118 W=50MIL P=PBIAS SUB1
TWO 30 39 300 NE326
TRL 39 40 W=20MIL P=15MIL SUB1
TRL 40 42 W=50MIL P=10MIL SUB1
SRL 42 44 R=10 L=2NH
*added resistor for stability at a minor loss in gain
TRL 300 310 W=20MIL P=LL SUB1
TRL 300 320 W=20MIL P=LL SUB1
WRAP 310 0 A=20MIL SUB1
WRAP 320 0 A=20MIL SUB1
TRL 44 50 W=WOUT P=POUT SUB1
CROSS 50 60 72 150 W1=WOUT W2=WOS W3=W50 W4=WBIAS SUB1
OST 60 W=WOS P=POS SUB1
TRL 150 152 W=WBIAS P=PBIAS SUB1
TEE 160 170 152 W1=50MIL W2=50MIL W3=WBIAS SUB1
TRL 160 162 W=50MIL P=20MIL SUB1
SRL 162 164 R=51 L=2NH
TRL 164 166 W=50MIL P=50MIL SUB1
SLC 166 0 L=0.4NH C=1000PF
* slc 170 0 l=.3nh c=10pf q=4 f=6ghz
OST 170 W=50MIL P=PBIAS SUB1
TRL 72 74 W=W50 P=20MIL SUB1
SLC 74 76 L=0.3NH C=10PF Q=4 F=6GHZ
TRL 76 78 W=W50 P=300MIL SUB1
LNA: 2POR 1 78
END
* GaAs FET matching variables
LL2:10MIL
WINP:?76MIL?
PINP:?396MIL?
WOUTP:?50MIL?
POUTP:?746MIL?
* GaAs FET amplifier circuit
blk
* trl 1 105 w=46mil p=300mil sub1
* slc 105 100 l=0.28nh c=10pf q=4
trl 1 2 w=winp p=pinp sub1
tee 2 3 40 w1=winp w2=winp w3=wbias sub1
trl 3 4 w=winp p=20mil sub1
trl 40 42 w=wbias p=pbias sub1
tee 44 46 42 w1=50mil w2=50mil w3=wbias sub1
trl 44 48 w=50mil p=20mil sub1
srl 48 50 r=51 l=2nh
trl 50 52 w=50mil p=50mil sub1
slc 52 0 l=0.4nh c=1000pf q=.1
ost 46 w=50mil p=pbias sub1
two 4 5 10 ATF10
trl 5 7 w=20mil p=10mil sub1
tee 7 9 20 w1=20mil w2=woutp w3=wbias sub1
trl 20 22 w=wbias p=pbias sub1
tee 24 26 22 w1=50mil w2=50mil w3=wbias sub1
trl 24 28 w=50mil p=20mil sub1
srl 28 30 r=51 l=2nh
trl 30 32 w=50mil p=50mil sub1
slc 32 0 l=0.4nh c=1000pf q=.1
ost 26 w=50mil p=pbias sub1
trl 10 11 w=20mil p=ll2 sub1
trl 10 15 w=20mil p=ll2 sub1
wrap 11 0 a=20mil sub1
wrap 15 0 a=20mil sub1
trl 9 60 w=woutp p=poutp sub1
slc 60 62 l=0.28nh c=10pf q=4
trl 62 64 w=w50 p=300mil sub1
amp:2por 1 64
end
* model coax to microstrip transistion
** coax input, microstrip output
** Microwave Update 1993, Jim Davey p.65
blk
cap 1 0 c=0.2pf
ind 1 2 l=0.2nh
cap 2 0 c=0.02pf
trans:2por 1 2
end
* low noise input circuit as a single stage
* with SMA transitions
blk
trans 1 2
lna 2 3
trans 4 3
LNZ:2por 1 4
end
* ATF 10135 2nd stage preamp with SMA transitions
blk
trans 1 2
trl 2 3 w=46mil p=300mil sub1
slc 3 4 l=0.28nh c=10pf q=4
amp 4 5
trans 6 5
amp1:2por 1 6
end
** TWO STAGE PREAMP with SMA transitions
blk
trans 1 2
lna 2 3
amp 3 4
trans 5 4
amp2:2por 1 5
end
freq
5760mhz
*step 0.1ghz 1ghz .2ghz
step 0.5ghz 12ghz .5ghz
end
opt
amp1 ms11 .1 lt
amp1 ms22 .1 lt
amp1 nf .6 lt
end
data
NE326:S
*NE326 NEC32684A 2V, 10mA
.1ghz .999 -2.3 6.402 178. .002 88.9 .48 -2
.2ghz .999 -4 6.366 176.1 .003 88.6 .48 -2.9
.5ghz .998 -9.6 6.384 170.6 .007 87.6 .48 -5.9
1ghz .986 -18.9 6.298 161 .014 77.6 .476 -11.5
2ghz .948 -36.2 6.108 143.6 .026 72.2 .467 -22
3ghz .894 -52.3 5.792 127.1 .038 62 .449 -31.2
4ghz .833 -67.8 5.404 112.1 .049 55.8 .436 -40.4
5ghz .766 -82.1 5.063 97.6 .058 49.4 .413 -49.2
6ghz .703 -95.8 4.713 84.3 .067 44.1 .394 -58.3
7ghz .653 -108.6 4.385 71.3 .074 38.3 .382 -67.4
8ghz .607 -119.6 4.112 59.8 .082 33.8 .374 -74.9
9ghz .569 -130.6 3.861 48.6 .09 28.3 .375 -83.3
10ghz .529 -141.4 3.686 37.5 .097 23.4 .378 -90.8
11ghz .487 -153.2 3.517 26 .107 18.4 .374 -99.4
12ghz .554 -166 3.376 14.8 .114 11.8 .365 -108
13ghz .428 -179.3 3.262 4.1 .121 6.3 .354 -116.8
14ghz .407 167.8 3.165 -5.9 .13 .6 .341 -125.5
15ghz .387 154.5 3.081 -17.3 .138 -5.4 .345 -136.6
16ghz .368 139.9 3.007 -27.9 .146 -13.5 .352 -148.4
17ghz .359 124.4 2.934 -40.2 .154 -21.6 .353 -160
18ghz .358 107.6 2.91 -52.3 .16 -30.1 .349 -170.6
19ghz .361 89.4 2.865 -65.4 .169 -39.1 .337 177.9
20ghz .379 73.7 2.812 -77.8 .174 -49 .319 165.2
noi rn
1ghz .28 .9 17 .45
2ghz .3 .85 32 .37
4ghz .33 .72 64 .27
6ghz .37 .62 91 .21
8ghz .40 .54 116 .15
10ghz .45 .48 138 .1
12ghz .5 .42 164 .07
14ghz .62 .38 -169 .07
16ghz .75 .34 -139 .08
18ghz .91 .34 -101 .09
20ghz 1.1 .38 -77 .1
ATF10:S
*Hewlett Packard ATF10136 25mA 2V
.5ghz .98 -18 5.32 163 .020 78 .35 -9
1.0ghz .93 -33 5.19 147 .038 67 .36 -19
2.0ghz .79 -66 4.64 113 .074 59 .30 -31
3.0ghz .64 -94 4.07 87 .110 44 .27 -42
4.0ghz .54 -120 3.60 61 .137 31 .22 -49
5.0ghz .47 -155 3.20 37 .167 13 .16 -54
6.0ghz .45 162 2.88 13 .193 -2 .08 -17
7.0ghz .50 120 2.51 -10 .203 -19 .16 45
8.0ghz .60 87 2.09 -32 .210 -36 .32 48
9.0ghz .68 61 1.75 -51 .209 -46 .44 38
10.0ghz .73 42 1.52 -66 .207 -58 .51 34
11.0ghz .77 26 1.26 -82 .205 -73 .54 27
12.0ghz .80 14 1.12 -97 .200 -82 .54 15
noi rn
1ghz .4 .85 24 .70
2ghz .4 .70 47 .46
4ghz .5 .39 126 .36
6ghz .8 .36 -170 .12
8ghz 1.1 .45 -100 .38
sub1:ms h=15mil er=2.2 met1=cu .7mil rgh=75uin tand=0.0011
end