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1 | (6) |
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1 | (3) |
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4 | (3) |
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4 | (3) |
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2 Transformer Design and Characterization in CMOS Process |
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7 | (14) |
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7 | (2) |
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9 | (3) |
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2.3 Transformer Measurement and Characterization |
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12 | (9) |
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19 | (2) |
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3 Design Considerations for CMOS Voltage-Controlled Oscillators (VCOs) |
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21 | (36) |
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21 | (7) |
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3.1.1 Start-Up Oscillation Conditions |
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21 | (1) |
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3.1.2 Phase-Noise Definition |
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22 | (2) |
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24 | (3) |
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27 | (1) |
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28 | (6) |
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3.2.1 Linear and Time-Invariant (LTI) Model |
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29 | (2) |
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3.2.2 Linear and Time-Variant (LTV) Model |
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31 | (3) |
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3.3 Design Insights Using the Time-Variant Model |
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34 | (14) |
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3.3.1 Phase Noise in 1/f2 Region |
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35 | (3) |
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3.3.2 Phase Noise in 1/f3 Region |
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38 | (5) |
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3.3.3 Comparison of Different LC-VCO Topologies |
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43 | (3) |
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3.3.4 VCO Figure of Merit |
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46 | (2) |
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48 | (4) |
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3.5 Low-Voltage CMOS VCOs |
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52 | (1) |
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52 | (5) |
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53 | (4) |
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4 Design Considerations for CMOS Frequency Dividers |
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57 | (20) |
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57 | (1) |
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4.2 Latch-Based Frequency Dividers |
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57 | (2) |
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4.3 Injection-Locked Frequency Dividers |
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59 | (12) |
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4.3.1 Indirect-Injection ILFDs |
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60 | (5) |
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4.3.2 Direct-Injection ILFDs |
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65 | (3) |
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4.3.3 Design Consideration for the LC-Tank |
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68 | (1) |
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4.3.4 Phase-Noise Performance |
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69 | (1) |
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4.3.5 ILFD Figure of Merit |
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70 | (1) |
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4.4 Miller Frequency Dividers |
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71 | (3) |
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74 | (3) |
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76 | (1) |
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5 Ultralow-Voltage VCO and QVCO Using Transformer Technique |
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77 | (30) |
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77 | (1) |
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5.2 Transformer-Feedback VCO (TF-VCO) |
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78 | (11) |
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5.2.1 Topology and Circuit Model |
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78 | (1) |
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5.2.2 Oscillation Frequency and Phase Noise |
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79 | (6) |
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5.2.3 Circuit Implementation |
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85 | (2) |
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5.2.4 Experimental Results |
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87 | (2) |
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5.3 Transformer-Coupled QVCO (TC-QVCO) |
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89 | (18) |
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5.3.1 Topology and Circuit Model |
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89 | (6) |
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5.3.2 Oscillation Frequency |
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95 | (1) |
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5.3.3 IQ Imbalance and Phase Noise |
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96 | (1) |
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5.3.4 Circuit Implementation |
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97 | (3) |
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5.3.5 Experimental Results |
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100 | (5) |
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105 | (2) |
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6 Transformer-Based Dual-Mode VCO |
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107 | (34) |
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107 | (4) |
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6.2 Analysis of the Transformer-Based Dual-Mode Oscillators |
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111 | (17) |
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6.2.1 One-Port Oscillators |
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111 | (7) |
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6.2.2 Two-Port Oscillators |
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118 | (4) |
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6.2.3 Comparison of One-Port and Two-Port Oscillators |
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122 | (6) |
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6.3 Case Study of a Dual-Mode QVCO for SDR Frequency Synthesizer |
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128 | (13) |
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6.3.1 Circuit Implementation |
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128 | (4) |
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6.3.2 Experimental Results |
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132 | (7) |
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139 | (2) |
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7 Magnetically-Tuned Multimode CMOS VCO |
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141 | (20) |
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141 | (1) |
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7.2 Transformer-Based Magnetic-Tuning Method |
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142 | (8) |
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142 | (3) |
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7.2.2 Analysis of the Switched-Triple-Shielded Transformer |
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145 | (5) |
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7.3 Design and Analysis of the MT-VCO |
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150 | (4) |
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154 | (7) |
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160 | (1) |
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8 Transformer-Based Injection-Locked Frequency Divider |
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161 | (28) |
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161 | (1) |
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8.2 Ultralow-Voltage ILFDs Using Transformer Feedback |
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162 | (16) |
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8.2.1 Regenerative-ILFD Architecture |
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162 | (1) |
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8.2.2 Ultralow-Voltage Regenerative ILFD |
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163 | (8) |
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8.2.3 Experimental Results |
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171 | (7) |
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8.3 Self-Frequency-Tracking ILFD |
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178 | (11) |
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8.3.1 Locking Range Limitation of the Conventional Direct-Injection ILFDs |
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178 | (1) |
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8.3.2 Self-Frequency-Tracking ILFD |
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179 | (5) |
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8.3.3 Experimental Results |
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184 | (4) |
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188 | (1) |
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189 | (8) |
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193 | (4) |
Appendix |
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197 | (6) |
Index |
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203 | |