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Contents [show]
Bedankings ix
Hoofstuk 1 Inleiding 1
1.1 motivering ................................................ .................... 1
1.2 historiese perspektief ............................................... .... 2
1.3 Linearisering en Memory effekte ............................... 3
1.4 Main inhoud van die boek ......................................... 4 ..
1.5 opbou van die boek ............................................. ....... 6 ..
Verwysings ................................................. .................................. 8
Hoofstuk 2 Sommige stroombaanteorie en terminologie 9
2.1 Klassifikasie van elektriese stelsels ........................... 10
2.1.1 Lineêre Stelsels en Memory ............................ 10
2.1.2 lineêre stelsels ........................................... 13
2.1.3 gemeenskaplike optrede van lineariteit .................. 15
2.2 bereken spektrum in lineêre stelsels ............. 18
2.3 Memoryless Spectral Hergroei .................................. 21
2.4 Signal Bandwydte afhanklike Nonlinear effekte ......... 25
2.5 Ontleding van nie-lineêre stelsels ................................... 27
2.5.1 Volterra Reeks Ontleding ................................... 28
2.5.2 Direkte Berekening van Nonlinear Response ...... 30
2.5.3 Twee Volterra model benaderingen ................ 34
2.6 Opsomming ................................................ .................... 39
2.7 Sleutel punte om te onthou ............................................ 41
Verwysings ................................................. ................................ 41
Hoofstuk 3 Memory effekte in RF kragversterkers 43
3.1 Doeltreffendheid ................................................ ................... 43
3.2 Linearisering ................................................ .............. 45
3.2.1 Linearisering en Doeltreffendheid ............................ 45
3.2.2 Linearisering tegnieke ................................. 46
3.2.3 Linearisering en Memory effekte ................... 48
3.3 Elektriese Memory effekte .......................................... 51
3.4 Electro Memory effekte .................................. 56
3.5 Amplitude Domain effekte ......................................... 59
3.5.1 vyfde-orde Analise Sonder Memory effekte 60
3.5.2 vyfde-orde Analise met Memory effekte ...... 62
3.6 Opsomming ................................................ .................... 66
3.7 Sleutel punte om te onthou ............................................ 67
Verwysings ................................................. ................................ 68
Hoofstuk 4 Die Volterra model 71
4.1 Nonlinear Modeling ............................................... .... 71
4.1.1 Nonlinear Simulasie Models ........................... 72
4.1.2 die eienskappe van die Volterra Models ............. 75
4.2 Nonlinear IV en QV eienskappe ...................... 77
4.2.1 IC-VBE-VCE Kenmerk ................................ 78
4.2.2 GPI en RBB .............................................. .......... 82
4.2.3 Kapasitansie Models ......................................... 82
4.3 Model van 'n gemene-emittor BJT / HBT Versterker ..... 84
4.3.1 Lineêre Ontleding ............................................... . 84
4.3.2 Nonlinear Ontleding ........................................... 87
4.4 IM3 in 'n BJT CE Versterker ........................................ 95
4.4.1 BJT as 'n waterval van Twee Nonlinear Blocks ..... 95
4.4.2 Gedetailleerde BJT Ontleding .................................... 102
4.5 MESFET Model en Ontleding .................................. 109
4.6 Opsomming ................................................ .................. 115
4.7 Sleutel punte om te onthou .......................................... 117
Verwysings ................................................. .............................. 118
Inhoud vii
Hoofstuk 5 Karakterisering van Volterra Models 123
5.1 Pas Polinoom Models ....................................... 124
5.1.1 Presiese en LMSE Pas ................................. 124
5.1.2 effekte van pas Range ................................. 126
5.2 Self-Verhitting effekte ............................................. .... 127
5.2.1 Pulsed Metings ..................................... 129
5.2.2 Thermal werkpunt ................................ 131
5.3 DC IV Karakterisering .......................................... 133
5.3.1 Pulsed DC Meet Setup ...................... 133
5.3.2 Pas IV Metings .............................. 134
5.4 AC Karakterisering Flow ........................................ 136
5.5 Pulsed S-Parameter Metings ........................... 137
5.5.1 toets toerusting ............................................... ....... 137
5.5.2 Kalibrasie ................................................ ..... 139
5.6 De-inbedding van die gevolge van die pakket ................ 140
5.6.1 4 Full-Port De-inbedding .............................. 141
5.6.2 De-inbedding Plain Bonding drade .............. 143
5.7 Berekening van kleinsein Parameters ................... 145
5.8 Pas die AC metings ................................... 147
5.8.1 Passing van Nonlinear kapasitansies .................. 147
5.8.2 Passing van dreinstroom lineariteiten .......... 149
5.9 Nonlinear Model van 'n 1-W BJT ................................ 152
5.10 Nonlinear Model van 'n 1-W MESFET ........................ 155
5.11 Nonlinear Model van 'n 30-W LDMOS ....................... 160
5.12 Opsomming ................................................ .................. 165
5.13 Sleutel punte om te onthou .......................................... 166
Verwysings ................................................. .............................. 167
Hoofstuk 6 Simuleer en meet Memory effekte 171
6.1 Simulating Memory effekte ...................................... 172
6.1.1 normalisering van IM3 komponente ................ 172
6.1.2 Simulasie van genormaliseerde IM3 komponente .. 175
6.2 Meet die Memory effekte ................................ 180
6.2.1 toets toerusting en kalibrasie ............................. 181
6.2.2 meetakkuraatheid .................................. 184
6.2.3 Memory effekte in 'n BJT PA ......................... 185
6.2.4 Memory effekte in 'n MESFET PA ............... 187
6.3 Memory effekte en Linearisering ........................... 187
6.4 Opsomming ................................................ .................. 190
6.5 Sleutel punte om te onthou .......................................... 191
Verwysings ................................................. .............................. 192
Hoofstuk 7 Kansellasie van Memory effekte 193
7.1 Envelope Filtering ............................................... ..... 194
7.2 Impedansie Optimization .......................................... 198
7.2.1 aktiewe las beginsel .................................... 199
7.2.2 toets toerusting en Sy Kalibrasie ........................ 202
7.2.3 Optimum ZBB op die koevert Frequency
Sonder Predistortion .................................. 203
7.2.4 Optimum ZBB op die koevert Frequency
met Predistortion ........................................ 204
7.3 Envelope inspuiting ............................................... .... 207
7.3.1 Kansellasie van Memory effekte in 'n
CE BJT Versterker ........................................ 209
7.3.2 Kansellasie van Memory effekte in 'n
CS MESFET Versterker ............................... 211
7.4 Opsomming ................................................ .................. 217
7.5 Sleutel punte om te onthou .......................................... 219
Verwysings ................................................. .............................. 220
Bylae A: Basics van Volterra Ontleding 221
Verwysing ................................................. ............................... 225
Bylaag B: afkappingsfout 227
Bylae C: IM3 Vergelykings vir kaskade tweede-graad
Lineariteiten 231
Bylaag D: Oor die meting ups 245
Verwysing ................................................. ............................... 247
Glossary 249
Oor die skrywers 253
Indeks 255
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