Design of a Transceiver RFIC for UWB Chaotic OOK System in 0.18um CMOS Technology
2007
A transceiver RFIC for ultra wideband (UWB) chaotic on-off keying (OOK) system is designed and verified in 0.18 mum CMOS technology. The transceiver RFIC is composed of a quasi-chaotic signal generator, an OOK modulator, a gain-controlled low noise amplifier (GC LNA), an envelop detector, and a baseband variable gain amplifier (VGA). The quasi-chaotic signal generator proposed in this paper is composed of a voltage control oscillator (VCO), a frequency divider, a PN-generator, and an up-conversion mixer. The chip size is 2.4 x 1.2 mm 2 . The current of the chip is 41 mA at transmit mode and 17 mA at receive mode with a supply voltage of 1.8 V. The result of the loop-back test shows that output signal level of the envelop detector is 200 mVp-p and invariant up-to 1 Mbps data rate.
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