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Title: Design and efficiency enhancement of polar encoder based on universal logic gates utilizing QCA technology Authors: ID Dongdong, Liu (Author) ID Tiantian, Ji (Author) Files: PDF - Presentation file, download (1,94 MB) MD5: F42D1F3915AD5CE22D263F4BA25C2E2F   URL - Source URL, visit https://ojs.midem-drustvo.si/index.php/InfMIDEM/article/view/1950   URL - Source URL, visit https://ojs.midem-drustvo.si/index.php/InfMIDEM/article/view/1950   This document has even more files. Complete list of files is available below. Language: English Typology: 1.01 - Original Scientific Article Organization: MIDEM - Society for Microelectronics, Electronic Components and Materials Abstract: Nano-scale circuit designs can be implemented using a transistor-free method called Quantum-dot Cellular Automata (QCA). QCA circuits are denser, quicker, and need less energy than the commonly used transistor-based technologies. In QCA technology, like in many other technologies, it is crucial to send and receive information securely. The QCA-based polar encoder circuit is one of the circuits that makes this possible. There are some drawbacks to the polar encoders circuit in QCA technology, and a strong design with high speed and low cell count is also strongly required. This paper presents three new and largely used circuits for QCAbased polar encoders. The G2 (2-bit) design is a single-layer structure with 16 cells only and a total area of 0.02 μm2, while its delay is 0.5 clock cycles. A suggested G4 design would be 121 cells, requiring a total size of 0.16 μm2 with a delay of 1.50 clock cycles. The G8 design has a delay of 3.5 clock cycles at a total size of 0.8 μm2 with 564 cells. All designs are simulated using QCADesigner. The tests and the simulations prove the supremacy of the proposed circuits over the best previous circuits in terms of speed, number of cells, and space used for implementation. Keywords: polar encoder, quantum-dot, cellular automata, QCAdesigner, nano communication, nano electronic Publication status: Published Publication version: Version of Record Publication date: 01.01.2025 Year of publishing: 2025 Number of pages: str. 87-94 Numbering: Vol. 55, no. 2 PID: 20.500.12556/DiRROS-30234  UDC: 621.38 ISSN on article: 0352-9045 DOI: 10.33180/InfMIDEM2025.202  COBISS.SI-ID: 281473027  Note: Besedilo v angl.; Publication date in DiRROS: 18.06.2026 Views: 133 Downloads: 142 Metadata:    Cite this work Plain text BibTeX EndNote XML EndNote/Refer RIS ABNT ACM Ref AMA APA Chicago 17th Author-Date Harvard IEEE ISO 690 MLA Vancouver : Copy citation

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Title:	Informacije MIDEM : časopis za mikroelektroniko, elektronske sestavne dele in materiale
Shortened title:	Inf. MIDEM
Publisher:	Strokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale
ISSN:	0352-9045
COBISS.SI-ID:	1220612

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License:	CC BY 4.0, Creative Commons Attribution 4.0 International
Link:	http://creativecommons.org/licenses/by/4.0/
Description:	This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:	Slovenian
Title:	Oblikovanje in povečanje učinkovitosti polarnega dekodirnika na osnovi univerzalnih logičnih vrat z uporabo tehnologije QCA
Abstract:	Zasnove vezij v nanometrskem merilu je mogoče izvesti z metodo brez tranzistorjev, imenovano kvantni celični avtomati (QCA). Vezja QCA so gostejša, hitrejša in potrebujejo manj energije kot običajno uporabljene tehnologije, ki temeljijo na tranzistorjih. Pri tehnologiji QCA je tako kot pri številnih drugih tehnologijah ključnega pomena varno pošiljanje in sprejemanje informacij. Polarno kodirno vezje, ki temelji na QCA, je eno od vezij, ki to omogoča. Vezje polarnih kodirnikov v QCA-tehnologiji ima nekaj pomanjkljivosti ter potrebuje močno zasnovo z visoko hitrostjo in majhnim številom celic. V tem članku so predstavljena tri nova in večinoma uporabljena vezja za polarne kodirnike, ki temeljijo na QCA. Zasnova G2 (2-bitna) je enoplastna struktura s 16 celicami in skupno površino 0,02 μm2, njena zakasnitev pa je 0,5 takta. Predlagana zasnova G4 bi imela 121 celic, za kar bi potrebovali skupno površino 0,16 μm2 , zakasnitev pa bi bila 1,50 takta. Zasnova G8 ima zakasnitev 3,5 takta pri skupni velikosti 0,8 μm2 in 564 celicami. Vse zasnove so simulirane s programom QCADesigner. Testi in simulacije dokazujejo premoč predlaganih vezij nad najboljšimi predhodnimi vezji glede hitrosti, števila celic in prostora, porabljenega za izvedbo.
Keywords:	polarni kodirnik, kvantne točke, mobilni avtomat, QCADesigner, nano povezljivost, nanoelektronski

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1. Informacije MIDEM

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