A miniature DC-70 GHz SP4T switch in 0.13-µm CMOS

This paper presents a miniature DC-70 GHz single-pole four-throw (SP4T) built in a low-cost 0.13-µm CMOS process. The switch is based on a series-shunt design with input and output matching circuits. Deep n-well (also called triple-well) CMOS transistors are used to minimize the substrate coupling. Also, deep trench isolation is used between the different ports to minimize the port-to-port coupling. The SP4T results in a measured insertion loss of less than 3.5 dB up to 67 GHz with an isolation of greater than 25 dB. The measured port-to-port coupling is less than 28 dB up to 67 GHz. The measured P1dB and IIP3 are independent of frequency and are 9–10 dBm and 20–21 dBm, respectively. The active chip area is 0.24×0.23 mm2. To our knowledge, this work represents the widest bandwidth SP4T switch in any CMOS technology to-date.

[1]  Gabriel M. Rebeiz,et al.  $Ka$-Band Low-Loss and High-Isolation Switch Design in 0.13-$\mu{\hbox {m}}$ CMOS , 2008, IEEE Transactions on Microwave Theory and Techniques.

[2]  C. Nguyen,et al.  Ultra-Compact High-Linearity High-Power Fully Integrated DC–20-GHz 0.18-$\mu{\hbox {m}}$ CMOS T/R Switch , 2007, IEEE Transactions on Microwave Theory and Techniques.

[3]  B. Gaucher,et al.  A Silicon 60-GHz Receiver and Transmitter Chipset for Broadband Communications , 2006, IEEE Journal of Solid-State Circuits.

[4]  I. Seto,et al.  A 60-GHz CMOS Receiver Front-End With Frequency Synthesizer , 2008, IEEE Journal of Solid-State Circuits.

[5]  Gabriel M. Rebeiz,et al.  A Compact DC-30 GHz 0.13-um CMOS SP4T Switch , 2009, 2009 IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems.

[6]  Huei Wang,et al.  A 50 to 94-GHz CMOS SPDT Switch Using Traveling-Wave Concept , 2007, IEEE Microwave and Wireless Components Letters.

[7]  Vipul Jain,et al.  A CMOS 22-29GHz Receiver Front-End for UWB Automotive Pulse-Radars , 2007, 2007 IEEE Custom Integrated Circuits Conference.

[8]  I. Gresham,et al.  A fully integrated 24 GHz SiGe receiver chip in a low-cost QFN plastic package , 2006, IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2006.

[9]  Huei Wang,et al.  A miniature dc-to-50 GHz CMOS SPDT distributed switch , 2005, European Gallium Arsenide and Other Semiconductor Application Symposium, GAAS 2005.

[10]  B. Floyd,et al.  A silicon 60GHz receiver and transmitter chipset for broadband communications , 2006, 2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers.

[11]  A. Tomkins,et al.  A 94GHz SPST Switch in 65nm Bulk CMOS , 2008, 2008 IEEE Compound Semiconductor Integrated Circuits Symposium.