Parasitic-Aware Simulation-Based Optimization Design Tool for Current Steering VGAs
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Published:2022-12-28
Issue:1
Volume:12
Page:132
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ISSN:2079-9292
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Container-title:Electronics
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language:en
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Short-container-title:Electronics
Author:
Mansour NehadORCID, Elnozahi Mohamed, Ragaai Hani
Abstract
Designing millimeter-wave variable gain amplifiers (VGAs) is very challenging owing to the parasitic effects of the interconnects of both active and passive devices. An automated parasitic-aware optimization RF design tool is proposed in this paper to address this challenge. The proposed tool considers the parasitic effects prior to layout. It employs a knowledge-aware optimization technique. The augmentation between parasitic-aware and knowledge-aware techniques speeds up the design process and leads to a design as close to the final design after finalizing the layout. The proposed tool gives limitless and guaranteed converged solutions in a wide range of RF frequencies. A four-bits current steering VGA design is used as a validation of the tool. The tool is tested on three different frequencies using the 65 nm-technology node. The three tested frequencies (7, 10, and 13 GHz) show a root mean square gain error at approximately 0.1 dB and a phase variation at approximately 3.5° within a 16-dB gain control range. To our knowledge, it is the first reported automated design tool for a current steering VGA.
Subject
Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering
Reference24 articles.
1. A 40-GHz 4-Bit Digitally Controlled VGA with Low Phase Variation Using 65-nm CMOS Process;Tsai;IEEE Microw. Wirel. Compon. Lett.,2019 2. Jangkrajarng, N., Zhang, L., Bhattacharya, S., Kohagen, N., and Shi, C.R. (2006, January 5–9). Template-Based Parasitic-Aware Optimization and Retargeting of Analog and RF Integrated Circuit Layouts. Proceedings of the 2006 IEEE/ACM International Conference on Computer Aided Design, San Jose, AC, USA. 3. Carley, R., Gielen, G., Rutenbar, R., and Sansen, W. (1996, January 3–7). Synthesis tools for mixed-signal ICs: Progress on frontend and backend strategies. Proceedings of the 33rd Annual Design Automation Conference, Las Vegas, NM, USA. 4. Ranjan, M., Bhaduri, A., Verhaegen, W., Mukherjee, B., Vemuri, R., Gielen, G., and Pacelli, A. (2004, January 22). Use of Symbolic Performance Models in Layout-Inclusive RF Low Noise Amplifier Synthesis. Proceedings of the 2004 IEEE International Behavioral Modeling and Simulation Conference, San Jose, CA, USA. 5. Afacan, E., and Dündar, G. (2016, January 20–22). A Mixed Domain Sizing Approach for RF Circuit Synthesis. Proceedings of the 2016 IEEE 19th International Symposium on Design and Diagnostics of Electronic Circuits & Systems (DDECS), Kosice, Slovakia.
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