A 2.88Gb/s digital hopping UWB transceiver

While a number of UWB transceivers having data rates of 480Mb/s have been successfully developed [1∓3], there is strong demand for still higher data rates. A digital hopping UWB transceiver that expands the baseband by three times over that of previous technologies to obtain a data rate of 2.88Gb/s is described. A frequency-hopping polyphase filter (FH-PPF) that switches the passband of an RX chain within a switching time of 5ns allows compatibility with present 480Mb/s or lower data rates, while requiring the use of only one LO frequency, as opposed to the need for three in previous technologies. An 800MHz baseband has been achieved through use of a passive LPF and a highpass feedback VGA. EVM was measured to be below −26dB up to 2.88Gb/s. RX power dissipation of 156mW was achieved with 90nm CMOS technology.

[1]  S. Lee,et al.  A WiMedia-Compliant UWB Transceiver in 65nm CMOS , 2007, 2007 IEEE International Solid-State Circuits Conference. Digest of Technical Papers.

[2]  Hiroshi Kodama,et al.  A 1.1V 3.1-to-9.5GHz MB-OFDM UWB transceiver in 90nm CMOS , 2006, 2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers.

[3]  Qinfang Sun,et al.  MIMO technology for advanced wireless local area networks , 2005, Proceedings. 42nd Design Automation Conference, 2005..

[4]  Bo Liang,et al.  A Fully Integrated 14-Band 3.1-to-10.6GHz 0.13μm SiGe BiCMOS UWB RF Transceiver , 2008, 2008 IEEE International Solid-State Circuits Conference - Digest of Technical Papers.

[5]  Sung Min Park,et al.  A 1.2V 5.2mW 40dB 2.5Gb/s Limiting Amplifier in 0.18μm CMOS Using Negative-Impedance Compensation , 2007, 2007 IEEE International Solid-State Circuits Conference. Digest of Technical Papers.