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TitleUltra-Low-Power and Ultra-Low-Cost Short-Range Wireless Receivers in Nanoscale CMOS
File Size6.0 MB
Total Pages119
Table of Contents
1 Introduction
	1.1 Short-Range Wireless Communications
		1.1.1 The IEEE 802.15.4/ZigBee, IEEE 802.15.6 and Bluetooth Low Energy ULP Standards
	1.2 Design Considerations for ULP and ULC Short-Range Wireless RXs
		1.2.1 Power Supply (VDD)
		1.2.2 Carrier Frequency
		1.2.3 NB Versus UWB
	1.3 Main Targets
	1.4 Organization
2 Design and Implementation of Ultra-Low-Power ZigBee/WPAN Receiver
	2.1 Proposed ``Split-LNTA + 50 % LO'' Receiver
	2.2 Comparison of ``Split-LNTA + 50 % LO'' and ``Single-LNTA + 25 % LO'' Architectures
		2.2.1 Gain
		2.2.2 NF
		2.2.3 IIP3
		2.2.4 Current- and Voltage-Mode Operations
	2.3 Circuit Techniques
		2.3.1 Impedance Up Conversion Matching
		2.3.2 Mixer-TIA Interface Biased for Impedance Transfer Filtering
		2.3.3 RC-CR Network and VCO Co-Design
	2.4 Experimental Results
	2.5 Conclusions
3 A 2.4-GHz ZigBee Receiver Exploiting an RF-to-BB-Current-Reuse Blixer + Hybrid Filter Topology in 65-nm CMOS
	3.1 Introduction
	3.2 Proposed Current-Reuse Receiver Architecture
	3.3 Circuit Implementation
		3.3.1 Wideband Input-Matching Network
		3.3.2 Balun-LNA with Active Gain Boost and Partial Noise Canceling
		3.3.3 Double-Balanced Mixers Offering Output Balancing
		3.3.4 Hybrid Filter 1st Half---Current-Mode Biquad with IF Noise-Shaping
		3.3.5 Hybrid Filter 2nd Half---Complex-Pole Load
		3.3.6 Current-Mirror VGA and RC-CR PPF
		3.3.7 VCO, Dividers and LO Buffers
	3.4 Experimental Results
	3.5 Conclusions
	Appendix A: S11 2264 10 dB Bandwidth Versus the Q Factor (Qn) of the Input-Matching Network (Fig. 3.4a)
	Appendix B: NF of the Balun-LNA Versus the Gain (Gm,CS) of the CS Branch with AGB (Fig. 3.4a)
4 Analysis and Modeling of a Gain-Boosted N-Path Switched-Capacitor Bandpass Filter
	4.1 Introduction
	4.2 GB-BPF Using an Ideal RLC Model
		4.2.1 RF Filtering at Vi and Vo
		4.2.2 --3-dB Bandwidth at Vi and Vo
		4.2.3 Derivation of the Rp-Lp-Cp Model Using the LPTV Analysis
	4.3 Harmonic Selectivity, Harmonic Folding and Noise
		4.3.1 Harmonic Selectivity and Harmonic Folding
		4.3.2 Noise
		4.3.3 Intuitive Equivalent Circuit Model
	4.4 Design Example
	4.5 Conclusions
	Appendix A: The Derivation of Eq. (4.18)
	Appendix B: The Derivation of Lp and Cp
5 A Sub-GHz Multi-ISM-Band ZigBee Receiver Using Function-Reuse and Gain-Boosted N-Path Techniques for IoT Applications
	5.1 Introduction
	5.2 ULP Techniques: Current Reuse, ULV and Proposed Function Reuse + Gain-Boosted N-Path SC Network
	5.3 Gain-Boosted N-Path SC Networks
		5.3.1 N-Path Tunable Receiver
		5.3.2 AC-Coupled N-Path Tunable Receiver
		5.3.3 Function-Reuse Receiver Embedding a Gain-Boosted N-Path SC Network
	5.4 Low-Voltage Current-Reuse VCO-Filter
	5.5 Experimental Results
	5.6 Conclusions
	Appendix A: Output-Noise PSD at BB for the N-Path Tunable Receiver
	Appendix B: Derivation and Modeling of BB Gain and Output Noise for the Function-Reuse Receiver
6 Conclusion
	6.1 General Conclusions
	6.2 Suggestions for Future Work

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