指導教授:林志明 級別:碩一 學生:呂致遠 Mail:s94662010@mail.ncue.edu.tw 彰師大積體電路設計所 A 9–50-GHz Gilbert-Cell Down-Conversion Mixer in 0.13-μm CMOS Technology Chin-Shen Lin, Student Member, IEEE, Pei-Si Wu, Student Member, IEEE, Hong-Yeh Chang, Member, IEEE,and Huei Wang, Fellow, IEEE IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 16, NO. 5, MAY 2006 指導教授:林志明 級別:碩一 學生:呂致遠 Mail:s94662010@mail.ncue.edu.tw

Outline Abstact Introduction Circuit Design Schematic Chip photo Experimental Results Conclusion References

ABSTRACT Broadband microwave/millimeter-wave (MMW) Gilbert-cell mixer 1P8M 0.13-μm CMOS Microstrip line is employed for the matching networks and transformer design RF and LO to IF are better than 40 dB RF-to-LO and LO-to-RF isolations are all better than 20 dB.

INTRODUCTION CMOS technology demonstrated for wireless applications in (MMW) frequencies 60GHz LNA, 51GHz VCO SiGe based HBT Gilbert-cell mixer to 30.5GHz CMOS Gilbert-cell mixer below 10GHz A singly balance mixer from 26 to 34 GHz FET mixer from 30 to 40 GHz

Circuit Design Use Gilbert-cell core The charge injection technique is also employed in this circuit. Two resistors are used to inject current into Q1 and Q2 Two common drain buffer stages are added to achieve the impedance matching

Schematic Injection technique Gilbert-cell core common drain Buffer Balun Current Mirror

Chip photo IF+ IF- VDD LO GND ON WAFER RF

Experimental Results

0.13μm for ADS simulation

Conclusion A CMOS Gilbert-cell mixer is designed, fabricated, and measured for microwave/MMW applications. To the best of ourknowledge, this is the highest frequency CMOS Gilbert-cell mixer to date. This MMIC mixer exhibits a broadband mixer with conversion gain and is suitable for MMW receiver applications.

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