1. 1 Your Name Your Department or Company Date, 2015

2. 2 Outline ◎ Introduction ◎ Circuit Design ◎ Measured Results ◎ Conclusions

3. 3 Introduction ◎ V-band channel property Long distance communicatio n X In-door short distance communication: ◆ security ◆ 7-GHz BW ◆ un-license ◆ channel reuse

4. 4 Introduction ◎ unlicense V-band allocation 57 58 59 60 61 62 63 64 65 66 USA Canada Korea Japan Australia Europe GHz

5. 5 Introduction ◎ System diagram LNA

6. 6 Outline ◎ Introduction ◎ Circuit Design ◎ Measured Results ◎ Conclusions

7. 7 Circuit Design ※ Gain ※ Noise Figure ※ Input / Output matching ※ Linearity (P1dB, IIP3) ※ Power consumption ※ Stability ※ … ◎ Important Spec. for LNA

8. 8 Circuit Design ◎ Passive Components for matching & Load

9. 9 Circuit Design ◎ Microstrip line

10. 10 Circuit Design ◎ Schematic 20  m/100nm

11. 11 Circuit Design ◎ Micrograph Process: CMOS 90nm 1P9M RF (LP) 0.608mm 0.636mm INPUTOUTPUT

12. 12 Outline ◎ Introduction ◎ Circuit Design ◎ Measured Results ◎ Conclusions

13. Measured Results ◎ S-parameters 18.1dB@59.9GHz 58-62.4GHz 62.5-67GHz 60-67 + GHz

14. 14 Measured Results ◎ NF 6.3dB@61, 63.5GHz <8dB@57-64GHz

15. 15 Measured Results ◎ P1dB (IIP3 = -10dBm) IP1dB = -19dBm

16. 16 Measured Results ◎ Performance Summary TechnologyCMOS 90-nm RF 1P6M (LP) Supply voltage1.2 V Power consumption32.6 mW Gain18.1dB (59.9GHz) NF6.3 – 8 dB P1dB–19dBm IIP3–10dBm Chip size0.608 x 0.636 mm 2

17. 17 Conclusion ◎ A V-band LNA using microstrip line: ※ 18.1dB Gain, 6.3 dB NF ※ IP1dB = –19dBm; IIP3 = –10dBm ◎ Coupling between paths ※ Careful EM post-simulation ◎ Coupling structure for input matching ◎ V-band LNA using coupling structure Gain ↑

18. 18 Thanks for your attention!