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Yaliyomo
Shukrani ix
Sura 1 Utangulizi 1
1.1 Motisha ................................................ .................... 1
1.2 Historia Mtazamo ............................................... .... 2
1.3 Linearization na Athari Kumbukumbu ............................... 3
1.4 Kuu ya Yaliyomo wa Kitabu ......................................... 4 ..
1.5 Muhtasari wa Kitabu ............................................. ....... 6 ..
Marejeo ................................................. .................................. 8
Sura 2 Baadhi Theory Circuit na Istilahi 9
2.1 Uainishaji wa Systems umeme ........................... 10
2.1.1 Linear Systems na Kumbukumbu ............................ 10
2.1.2 nonlinear Systems ........................................... 13
2.1.3 kawaida Hatua ya Nonlinearity .................. 15
2.2 mahesabu spectrums katika Systems nonlinear ............. 18
2.3 Memoryless Spectral regrowth .................................. 21
2.4 Signal Bandwidth tegemezi nonlinear Mitindo ......... 25
2.5 Uchambuzi wa Systems nonlinear ................................... 27
2.5.1 Volterra Mfululizo Uchambuzi ................................... 28
2.5.2 moja kwa moja Mahesabu ya Responses nonlinear ...... 30
2.5.3 Barua Volterra Modeling Mikabala ................ 34
2.6 Summary ................................................ .................... 39
2.7 Key Points kwa Kumbuka ............................................ 41
Marejeo ................................................. ................................ 41
Sura 3 Kumbukumbu Athari katika RF Power Amplifiers 43
3.1 ufanisi ................................................ ................... 43
3.2 Linearization ................................................ .............. 45
3.2.1 Linearization na ufanisi ............................ 45
3.2.2 Linearization Mbinu ................................. 46
3.2.3 Linearization na Athari Kumbukumbu ................... 48
3.3 umeme Kumbukumbu Mitindo .......................................... 51
3.4 Electrothermal Kumbukumbu Mitindo .................................. 56
3.5 amplitude Domain Mitindo ......................................... 59
3.5.1 ya Tano-Order Uchambuzi Bila Mitindo Kumbukumbu 60
3.5.2 ya Tano-Order Uchambuzi na Athari Kumbukumbu ...... 62
3.6 Summary ................................................ .................... 66
3.7 Key Points kwa Kumbuka ............................................ 67
Marejeo ................................................. ................................ 68
Sura 4 Volterra Model 71
4.1 nonlinear Modeling ............................................... .... 71
4.1.1 nonlinear Simulation Mifano ........................... 72
4.1.2 Mali za Mifano Volterra ............. 75
4.2 nonlinear IV na Tabia QV ...................... 77
4.2.1 IC-VBE-VCE Tabia ................................ 78
4.2.2 GPI na rbb .............................................. .......... 82
4.2.3 Capacitance Mifano ......................................... 82
4.3 Model ya Amplifier Common-Emitter BJT / HBT ..... 84
4.3.1 Linear Uchambuzi ............................................... . 84
4.3.2 nonlinear Uchambuzi ........................................... 87
4.4 IM3 katika Amplifier BJT CE ........................................ 95
4.4.1 BJT kama Cascade ya vitalu Barua nonlinear ..... 95
4.4.2 Kina BJT Uchambuzi .................................... 102
4.5 MESFET Model na Uchambuzi .................................. 109
4.6 Summary ................................................ .................. 115
4.7 Key Points kwa Kumbuka .......................................... 117
Marejeo ................................................. .............................. 118
Yaliyomo vii
Sura 5 Tabia ya Volterra Mifano 123
5.1 Fitting polynomial Mifano ....................................... 124
5.1.1 halisi na LMSE Fitting ................................. 124
5.1.2 Madhara ya Range Fitting ................................. 126
5.2 Tathmini joto Athari ............................................. .... 127
5.2.1 pulsed Vipimo ..................................... 129
5.2.2 Thermal uendeshaji Point ................................ 131
5.3 DC IV Tabia .......................................... 133
5.3.1 pulsed DC Upimaji Setup ...................... 133
5.3.2 Fitting IV Vipimo .............................. 134
5.4 AC Tabia Flow ........................................ 136
5.5 pulsed Vipimo S-parameter ........................... 137
5.5.1 mtihani Setup ............................................... ....... 137
5.5.2 Calibration ................................................ ..... 139
5.6 De-embedding Madhara ya Package ................ 140
5.6.1 Kamili 4-Port De-embedding .............................. 141
5.6.2 De-embedding waya Bonding Plain .............. 143
5.7 Mahesabu ya Vigezo Small-Signal ................... 145
5.8 Fitting Vipimo AC ................................... 147
5.8.1 Fitting ya Capacitances nonlinear .................. 147
5.8.2 Fitting ya Nonlinearities Drain sasa .......... 149
5.9 nonlinear Model ya BJT 1-W ................................ 152
5.10 nonlinear Model ya MESFET 1-W ........................ 155
5.11 nonlinear Model ya LDMOS 30-W ....................... 160
5.12 Summary ................................................ .................. 165
5.13 Key Points kwa Kumbuka .......................................... 166
Marejeo ................................................. .............................. 167
Sura 6 simulating na Upimaji Mitindo Kumbukumbu 171
6.1 simulating Mitindo Kumbukumbu ...................................... 172
6.1.1 Kuhalalisha ya Vipengele IM3 ................ 172
6.1.2 Masimulizi ya Vipengele Normalized IM3 .. 175
6.2 Upimaji Mitindo Kumbukumbu ................................ 180
6.2.1 mtihani Setup na Calibration ............................. 181
6.2.2 Upimaji sahihi .................................. 184
6.2.3 Kumbukumbu Athari katika PA BJT ......................... 185
6.2.4 Kumbukumbu Athari katika PA MESFET ............... 187
6.3 Kumbukumbu Mitindo na Linearization ........................... 187
6.4 Summary ................................................ .................. 190
6.5 Key Points kwa Kumbuka .......................................... 191
Marejeo ................................................. .............................. 192
Sura 7 Cancellation ya Kumbukumbu Mitindo 193
7.1 bahasha filtering ............................................... ..... 194
7.2 Impedans Biashara .......................................... 198
7.2.1 Active mzigo Kanuni .................................... 199
7.2.2 mtihani Setup na Calibration yake ........................ 202
7.2.3 Optimum ZBB katika Frequency bahasha
Bila Predistortion .................................. 203
7.2.4 Optimum ZBB katika Frequency bahasha
na Predistortion ........................................ 204
7.3 bahasha sindano ............................................... .... 207
7.3.1 Cancellation ya nyingi Kumbukumbu katika
CE BJT Amplifier ........................................ 209
7.3.2 Cancellation ya nyingi Kumbukumbu katika
CS MESFET Amplifier ............................... 211
7.4 Summary ................................................ .................. 217
7.5 Key Points kwa Kumbuka .......................................... 219
Marejeo ................................................. .............................. 220
Kiambatisho A: Misingi ya Volterra Uchambuzi 221
Kumbukumbu ................................................. ............................... 225
Kiambatisho B: truncation Hitilafu 227
Kiambatisho C: IM3 Equations kwa Shahada ya Pili-cascaded
Nonlinearities 231
Kiambatisho D: Kuhusu Upimaji setups 245
Kumbukumbu ................................................. ............................... 247
Kamusi 249
Kuhusu 253 Waandishi
Index 255
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