A 34–110 GHz wideband, asymmetric, broadside-coupled Marchand balun in 180 nm SiGe BiCMOS technology

An asymmetric, broadside-coupled Marchand balun for wideband millimeter wave applications is presented. The balun based on the modified off-center frequency method achieves 34-110 GHz operation bandwidth and exhibits minimum insertion loss of 4.7 dB at 54 GHz. To the author's best knowledge, this is the widest operational bandwidth among the recently published millimeter wave baluns in silicon technology.

[1]  N. Marchand,et al.  Transmission-line Conversion Transformers , 1944 .

[2]  G. Oltman,et al.  The Compensated Balun , 1966 .

[3]  C.-Y. Hsu,et al.  A 60-GHz Millimeter-wave CMOS Marchand Balun , 2007, 2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium.

[4]  Tsung-Yu Yang,et al.  Low-Loss and Broadband Asymmetric Broadside-Coupled Balun for Mixer Design in 0.18-$\mu{\hbox {m}}$ CMOS Technology , 2008, IEEE Transactions on Microwave Theory and Techniques.

[5]  Meng-Ju Chiang,et al.  A compact CMOS Marchand balun incorporating meandered multilayer edge-coupled transmission lines , 2009, 2009 IEEE MTT-S International Microwave Symposium Digest.

[6]  Jui-Yi Lin,et al.  Symmetric Offset Stack Balun in Standard 0.13-$\mu{\hbox {m}}$ CMOS Technology for Three Broadband and Low-Loss Balanced Passive Mixer Designs , 2011, IEEE Transactions on Microwave Theory and Techniques.

[7]  Guo-Wei Huang,et al.  A compact millimeter-wave broadband stacked coupled balun , 2012, 2012 Asia Pacific Microwave Conference Proceedings.

[8]  Chorng-Kuang Wang,et al.  A 60 GHz wideband active balun using magnitude and phase concurrent correction technique in 65nm CMOS , 2012, 2012 IEEE Asian Solid State Circuits Conference (A-SSCC).

[9]  Choon Sik Cho,et al.  A broadband, millimeter wave, asymmetrical Marchand balun in 180 nm SiGe BiCMOS technology , 2012, 2012 IEEE Radio Frequency Integrated Circuits Symposium.

[10]  Yo-Sheng Lin,et al.  Design and Analysis of a 21–29-GHz Ultra-Wideband Receiver Front-End in 0.18-$\mu$ m CMOS Technology , 2012, IEEE Transactions on Microwave Theory and Techniques.