1. An Ultra-Wideband CMOS Low Noise Amplifier for 3–5-GHz UWB System
IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 40, NO. 2, FEBRUARY 2005
指導教授 : 林志明 教授
學生 : 黃世一

2. Outline Abstract Introduction Design of wideband amplifier
Amplifier design and measurement results
Conclusion
References

3. Abstract
An UWB CMOS LNA combines a narrowband LNA with a resistive shunt-feedback
Wideband input matching and small NF degradation by Q-factor
0.18μm CMOS technology for 3.1-5GHz UWB system
BW GHz, NFmin 2.3dB, gain 9.8dB
IP3 -7dBm, Pd 12.6mW

4. Introduction UWB system : 3.1–10.6 GHz low-frequency band : 3.1–5 GHz
high-frequency band: 6–10.6 GHz
CMOS in wideband amplifiers with two different topologies
Distributed amplifiers
Resistive shunt-feedback-based amplifiers

5. Recently, a bandpass LC filter at the input of the cascode low noise amplifier (LNA) for wideband input matching
A new low power, low noise, and wideband amplifier in GHz UWB system

6. Design of wideband amplifier narrowband LNA
Input match

7. RLC series resonant circuit
ωT : cutoff frequency
ω0 : resonant frequency

8. Shunt packing inductor
UWB LNA topology
Shunt packing inductor
Shunt-feedback
Cf , C1, C2 : ac coupling

11. Amplifier design and measurement results

14. Conclusion

15. References
Chang-Wan Kim; Min-Suk Kang; Phan Tuan Anh; Hoon-Tae Kim; Sang-Gug Lee;Solid-State Circuits, IEEE Journal of Volume 40, Issue 2, Feb Page(s): Digital Object Identifier /JSSC

16. Thank You For Your Attention !