An 8-PSK Super Regenerative Receiver


Book Description

Abstract: The Super- Regenerative Reception concept was developed in the early 1900s. The evolution of Heterodyne Reception has forced it into oblivion. However, recent research and development has emphasized its use in short distance and low power wireless applications. The results indicate extremely low power and high gain with small circuit area. The study herein focuses on a receiver using a Super Regenerative Oscillator to decrypt 8-PSK Signals. Demodulation without the use of a Local Oscillator, a Phase Locked Loop or an Analog to Digital Converter is proposed. The architecture of encoding is presented which is in turn used to generate the necessary input at the receiver. The receiver involves a combined Low Noise Amplifier Super- Regenerative Oscillator architecture in a single stack configuration for the feature of current reuse. Simulation results are presented which confirm the theory. Finally, a comparative study is presented for various modulation techniques including Quadrature Phase Shift Keying and 8-Phase Shift Keying.




Design and Simulation of an 8-PSK Super Regenerative Receiver with New Phase Detection Technique


Book Description

Abstract: Super Regenerative Receivers exploit more complex modulation techniques in order to achieve better bit per symbol rate. This study presents a novel 8-Phase Shift Keying (PSK) Super Regenerative Receiver operating in the 402--405 MHz, Medical Implant Communication Service (MICS) band. In the proposed architecture, the complexity of the circuit input is reduced by using an enable signal, which produces a quenching current source in the Low Noise Amplifier (LNA) and Super Regenerative Oscillator (SRO) circuit. Furthermore, the receiver uses a new RC-CR network to generate eight equally shifted signals and one Flip-Flop in each path to minimize the amplitude mismatch and the number of components, respectively. This receiver has been designed and simulated in 130 nm Complementary Metal Oxide Semiconductor (CMOS) process. The power consumption of the entire receiver is 119 μW for the input signal of -80 dBm, at the rate of 6 Mbps, and the Energy Per Bit of 19.8 pj/b.




Design and Simulation of 16 PSK Super Regenerative Receiver


Book Description

Abstract: Radio Frequency (RF) communication has developed tremendously over the past two decades. Short-range wireless applications, such as sensor networks, robotics, and home automation, require small area and low power consumption. The receiver must be designed in such a way that it optimizes the area with simple circuitry and minimizes its turn on time to achieve these requirements. This project focuses on designing the 16-PSK (Phase Shift Keying) super regenerative receiver to achieve digital transmission at a higher data rate with low power consumption. The receiver is designed with a Low Noise Amplifier (LNA), Super Regenerative Oscillator (SRO), buffers, RC networks, latches, and flip-flops. The receiver is designed at the 400 MHz frequency with 130nm Complementary Metal Oxide Semiconductor (CMOS) process technology. This receiver can correctly detect the -80 dBm, 4-Mbps signal with a power consumption of 164 [mu]W and Energy Per Bit (EPB) of 0.041nj/b.







Wireless Medical Systems and Algorithms


Book Description

Wireless Medical Systems and Algorithms: Design and Applications provides a state-of-the-art overview of the key steps in the development of wireless medical systems, from biochips to brain–computer interfaces and beyond. The book also examines some of the most advanced algorithms and data processing in the field. Addressing the latest challenges and solutions related to the medical needs, electronic design, advanced materials chemistry, wireless body sensor networks, and technologies suitable for wireless medical devices, the text: Investigates the technological and manufacturing issues associated with the development of wireless medical devices Introduces the techniques and strategies that can optimize the performances of algorithms for medical applications and provide robust results in terms of data reliability Includes a variety of practical examples and case studies relevant to engineers, medical doctors, chemists, and biologists Wireless Medical Systems and Algorithms: Design and Applications not only highlights new technologies for the continuous surveillance of patient health conditions, but also shows how disciplines such as chemistry, biology, engineering, and medicine are merging to produce a new class of smart devices capable of managing and monitoring a wide range of cognitive and physical disabilities.




Design of CMOS Millimeter-Wave and Terahertz Integrated Circuits with Metamaterials


Book Description

This book shows that with the use of metamaterials, one can have coherent THz signal generation, amplification, transmission, and detection for phase-arrayed CMOS transistors with significantly improved performance. Offering detailed coverage from device to system, the book describes the design and application of metamaterials in actual CMOS integrated circuits, includes real circuit examples and chip demonstrations with measurement results, and also evaluates system performance after CMOS-based system-on-chip integration. The book reflects the latest research progress and provides a state-of-the-art reference on CMOS-based metamaterial devices and mm-wave and THz systems.













Practical RF Handbook


Book Description

Radio Frequency (RF) is the fundamental technology behind a huge range of modern consumer electronics and wireless communication devices, and this book provides a comprehensive and methodical guide to RF for engineers, technicians, enthusiasts and hobbyists with an interest in the electronics behind radio frequency communications.In Practical RF Handbook, Ian Hickman draws upon his own radio engineering background to develop a hands-on guide to the difficulties and pitfalls of RF design with a minimum of maths. A broad coverage includes devices, circuits, equipment, systems, radio propagation and external noise to fully acquaint the reader with the necessary circuit technologies and techniques.The fourth edition brings the book fully up-to-date with new advances in RF, including coverage of OFDM, UWB, WiFi and WiMax. - Practical coverage of the cutting-edge technology behind the fast-moving world of communications electronics - Real-world design guide for engineers, technicians and students, covering key principles with a minimum of maths - Updated throughout, including coverage of recent hot topics such as UWB, WiFi and WiMax