Design of low complexity Universal Bi-quadratic Filters using Current Feedback Amplifier

2017 ◽  
Author(s):  
Kuldeep Kumar ◽  
Satyasai Jagannath Nanda
Keyword(s):  
Low Complexity ◽  
Current Feedback ◽  
Feedback Amplifier ◽  
Current Feedback Amplifier

scholarly journals Design Impedance Mismatch Physical Unclonable Functions for IoT Security

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaomin Zheng ◽  
Yuejun Zhang ◽  
Jiaweng Zhang ◽  
Wenqi Hu
Keyword(s):  
Transmission Line ◽  
Printed Circuit Board ◽  
Signal Transmission ◽  
Characteristic Impedance ◽  
Circuit Board ◽  
Physical Factors ◽  
Current Feedback ◽  
Impedance Mismatch ◽  
Feedback Amplifier ◽  
Current Feedback Amplifier

We propose a new design, Physical Unclonable Function (PUF) scheme, for the Internet of Things (IoT), which has been suffering from multiple-level security threats. As more and more objects interconnect on IoT networks, the identity of each thing is very important. To authenticate each object, we design an impedance mismatch PUF, which exploits random physical factors of the transmission line to generate a security unique private key. The characteristic impedance of the transmission line and signal transmission theory of the printed circuit board (PCB) are also analyzed in detail. To improve the reliability, current feedback amplifier (CFA) method is applied on the PUF. Finally, the proposed scheme is implemented and tested. The measure results show that impedance mismatch PUF provides better unpredictability and randomness.

SINGLE CFA-BASED NICs WITH IMPEDANCE SCALING PROPERTIES

2005 ◽  
Vol 14 (02) ◽  
pp. 195-203 ◽  
Author(s):  
ALI ÜMIT KESKIN
Keyword(s):  
Integrated Circuits ◽  
Mixed Mode ◽  
Building Blocks ◽  
Current Feedback ◽  
Scaling Properties ◽  
Feedback Amplifier ◽  
Current Feedback Amplifier ◽  
Design And Manufacturing ◽  
Impedance Scaling ◽  
Impedance Converter

Negative impedance converter circuits (NICs) are important building blocks in design and manufacturing of analog and mixed mode integrated circuits. In this paper, a catalogue of single-current feedback amplifier-based negative impedance converter circuits having impedance scaling properties is proposed. Various examples are presented to illustrate the versatility of the proposed NIC circuits.

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