Design Of60GHz Loe-Power Receiver And40GHz Phase-Locked Loop

The CMOS implementation of fully-integrated transceiver at millimeter wave range has been a popular research topic in recent years. The60GHz WPAN (Wireless Personal Area Network) standardization within IEEE802.15.3c offers more than1Gbps data rate within10m short range. Due to a wide operating band available at60GHz, a simple modulation scheme like OOK (On-Off Keying) can be used to accommodate a data-rate above Gbps for their lower complexity. The emerging high data-rate short-range personal-area-network becomes increasingly promising under the great demand of ultra high speed wireless link. Millimeter wave range frequency is an excellent candidate as the carrier for such applications. Moreover, the circuits at millimeter wave usually have a smaller silicon area which makes it a potential solution for massive product.In the second chapter, this paper summarized mainstream architectures of transceiver for wireless communication, such as802.11b/a/g standard in2.4/5GHz and802.11ac standard in60GHz. The emerging60-GHz band is believed to be a great candidate for high-speed indoor RF link owing to its7-GHz available bandwidth. The OOK modulation is more suitable for60GHz short-range wireless communication. It integrates purely analog modulator/demodulator into the RF front-end, eliminating the digital interface and baseband circuitry entirely.In the third and fourth chapter, we focused on the circuit design of the OOK direct conversion receiver, including the design of a60GHz transformer-feedback low-noise amplifier and the OOK demodulator including the co-design of the mixer with the IF amplifier and the design of a IF variable gain amplifier. A full receiver with very wide bandwidth in the60GHz domain is realized in Global Foundries65-nm CMOS technology. The measurement results show that the low noise amplifier achieves11.8dB power gain and consumes15.4mW. The OOK demodualtor achieves1Gpbs data rate and ultra-low-power consumption of about11mW excluding the output buffer for testing purpose. Besides, the design of60GHz injection locked oscillator and a2.1-39GHz wideband amplifier are also included.The fifth chapter describes the design of the40GHz phase-locked loop for the dual-conversion transceiver. The phase locked loop can achieve a locking range from38-42GHz with a loop bandwidth of2MHz, which is employed to suppress the reference spur with160MHz reference clock. The in-band phase noise is below-102dBc/Hz.At last, a conclusion of researches on65-nm CMOS technology had been given, and a prospect of the CMOS technology in the future wireless communications application of60GHz band had been analyzed.