Comparison and Impact of Substrate Noise Generated by Clocked and Clockless Digital Circuitry

2006 ◽  
Author(s):  
Jim Le ◽  
Christopher Hanken ◽  
Martin Held ◽  
Mike Hagedorn ◽  
Kartikeya Mayaram ◽  
...  
Keyword(s):  
Substrate Noise ◽  
Digital Circuitry

Experimental Characterization and Analysis of an Asynchronous Approach for Reduction of Substrate Noise in Digital Circuitry

2012 ◽  
Vol 20 (2) ◽  
pp. 344-356 ◽  
Author(s):  
Jim Le ◽  
Christopher Hanken ◽  
Martin Held ◽  
Michael S. Hagedorn ◽  
Kartikeya Mayaram ◽  
...  
Keyword(s):  
Substrate Noise ◽  
Experimental Characterization ◽  
Digital Circuitry

Chip Level Simulation of Substrate Noise Coupling and Interference in RF ICs with CMOS Digital Noise Emulator

2014 ◽  
Vol E97.C (6) ◽  
pp. 546-556
Author(s):  
Naoya AZUMA ◽  
Shunsuke SHIMAZAKI ◽  
Noriyuki MIURA ◽  
Makoto NAGATA ◽  
Tomomitsu KITAMURA ◽  
...  
Keyword(s):  
Substrate Noise ◽  
Noise Coupling ◽  
Substrate Noise Coupling ◽  
Rf Ics

scholarly journals Optimum power transfer in RF front end systems using adaptive impedance matching technique

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohammad Alibakhshikenari ◽  
Bal S. Virdee ◽  
Leyre Azpilicueta ◽  
Chan H. See ◽  
Raed Abd-Alhameed ◽  
...  
Keyword(s):  
Impedance Matching ◽  
Adaptive Antenna ◽  
Power Transfer ◽  
Control Loops ◽  
Matching Networks ◽  
Front End ◽  
Rf Front End ◽  
Matching Technique ◽  
Digital Circuitry ◽  
Communications System

AbstractMatching the antenna’s impedance to the RF-front-end of a wireless communications system is challenging as the impedance varies with its surround environment. Autonomously matching the antenna to the RF-front-end is therefore essential to optimize power transfer and thereby maintain the antenna’s radiation efficiency. This paper presents a theoretical technique for automatically tuning an LC impedance matching network that compensates antenna mismatch presented to the RF-front-end. The proposed technique converges to a matching point without the need of complex mathematical modelling of the system comprising of non-linear control elements. Digital circuitry is used to implement the required matching circuit. Reliable convergence is achieved within the tuning range of the LC-network using control-loops that can independently control the LC impedance. An algorithm based on the proposed technique was used to verify its effectiveness with various antenna loads. Mismatch error of the technique is less than 0.2%. The technique enables speedy convergence (< 5 µs) and is highly accurate for autonomous adaptive antenna matching networks.

Modeling of Substrate Noise Effects in Dynamic CMOS Circuits

2008 ◽  
Author(s):  
Sagar. R. Gosavi ◽  
Waleed K. Al-Assadi ◽  
Sasikiran Burugapalli
Keyword(s):  
Cmos Circuits ◽  
Substrate Noise ◽  
Noise Effects

Technology Impacts on Substrate Noise

1999 ◽  
pp. 173-192 ◽  
Author(s):  
François J. R. Clément
Keyword(s):  
Substrate Noise
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