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A 1.5-V 6-10-GHz Low LO-Power Broadband CMOS Folded-Mirror Mixer for UWB Radio

A 1.5-V 6-10-GHz Low LO-Power Broadband CMOS Folded-Mirror Mixer for UWB Radio. H.-W. Chung, H.-C. Kuo, and H.-R. Chuang Institute of Computer and Communication Engineering, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, R. O. C.

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A 1.5-V 6-10-GHz Low LO-Power Broadband CMOS Folded-Mirror Mixer for UWB Radio

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  1. A 1.5-V 6-10-GHz Low LO-Power Broadband CMOS Folded-Mirror Mixer for UWB Radio H.-W. Chung, H.-C. Kuo, and H.-R. Chuang Institute of Computer and Communication Engineering, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, R. O. C Presenter :Meng-Long Hsin

  2. Abstract • A 6-10 GHz broadband down conversion mixer for UWB radio is presented. • The broadband mixer only needs a low LO power of -3 dBm which can reduce the effect of LO leakage and DC offset. • The broadband mixer exhibits a maximum conversion gain of 0.8 dB, and a DC power consumption of 15.75 mW at =1.5V.

  3. Outline • Introduction • CircuitDesign • Implementation and Measurement Results • Conclusion

  4. Introduction • DS-UWB technology can be applied to three frequency band (3.1-5.15 GHz, 5.8-10.6 GHz, and both of them). • The LO frequency is chosen at 8 GHz and the mixer directly down converts the 6-10 GHz RF signal into the 0-2 GHz IF frequency band.

  5. RF front-end architecture

  6. 架構圖

  7. Design of the input stage Input balun / transconductance stage

  8. Consideration on the LO port LO matching network

  9. Design of the switch stage

  10. Design of the output stage Output balun

  11. SimulationResults Measured conversion gain and noise figure

  12. SimulationResults(cont.) Measured input P1dB and IIP3 Measured LO-RF,LO-IF and RF-IF isolation

  13. Chip micrograph

  14. Conclusion

  15. Thanksforyourattention.

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