High-Isolation Multimode Multifunction 24-/60-GHz CMOS Dual-Bandpass Filtering T/R Switch
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© 2001-2012 IEEE. Fully integrated 24-/60-GHz dual-band transmit/receive (T/R) switch capable of bandpass filtering and switching operations in single bands and concurrent dual band, coupled with simultaneous transmission and reception, is developed using a 0.18-μ m SiGe BiCMOS process. The developed bandpass filtering switch can also function as a diplexer with switching functions. The measured insertion losses of the T/R switch are 2.9 and 8.7 dB at 24 and 60 GHz in single-band modes and 3/8.8 dB at 24/60 GHz in concurrent dual-band mode, respectively. The measured isolations are 53 and 43 dB at 24 and 60 GHz in single-band modes and 50/57 dB at 24/60 GHz in concurrent dual-band mode, respectively. The measured inputs P1-dB are 20.6 and 16.4 dBm at 24 and 60 GHz in single-band modes and 15.9/13 dBm at 24/60 GHz in concurrent dual-band mode, respectively. The measured inputs IP3 are 23.2 and 22.5 dBm at 24 and 60 GHz in corresponding single-band modes, respectively. The total chip size is 1480 μm × 520 μm excluding all the RF and dc pads.
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IEEE Microwave and Wireless Components Letters
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Um, Youngman||Nguyen, Cam
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