Compact Slow-Wave CMOS Wilkinson Using an Artificial Ground Structure

Compact Slow-Wave CMOS Wilkinson Using an Artificial Ground Structure | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 7 April 2026 V1 Latest version Share on Compact Slow-Wave CMOS Wilkinson Using an Artificial Ground Structure Authors : Ali Raza 0009-0000-9837-9896 and Inn-Yeal Oh [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.177553653.32828007/v1 132 views 82 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract A compact, broadband, two-way Wilkinson power divider/combiner is presented, created in 0.18-𝜇m CMOS for use between 60 and 90 GHz. The suggested design uses stacked M5–M6 slow-wave trans- mission lines to shorten the physical quarter-wave length without need- ing extra matching capacitors, which allows for a condensed, meander- ing arrangement. Because of the strong broadside coupling between the stacked conductors, the suggested line has a phase constant about 43% greater than the standard structure at 75 GHz. This lets the necessary 90◦ electrical length be achieved with a considerably shorter physical line. Rather than using M1 as a direct shielding ground, a recurring M1 structure is put under the signal lines as an electromagnetic field-control layer, while the actual RF ground reference is made by the conductive ground under the substrate. Furthermore, an RC isolation network offers frequency-shaped odd-mode damping for wideband isolation. A back- to-back setup is used for precise on-wafer characterization. The mea- surements show an extra insertion loss of 0.5 dB at 75 GHz, a return loss exceeding 20 dB at all ports, and an isolation greater than 34 dB from 60 to 90 GHz within a small 0.086 mm2 core area. The suggested structure works well for small mmWave CMOS front-end uses. Supplementary Material File (ell-authortex.tex) Download 27.87 KB File (finaludatedelaliraza - copy.pdf) Download 1.96 MB File (measurement setup1.png) Download 413.48 KB Information & Authors Information Version history V1 Version 1 07 April 2026 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords power combiners power dividers submillimetre wave devices Authors Affiliations Ali Raza 0009-0000-9837-9896 SunMoon University View all articles by this author Inn-Yeal Oh [email protected] Sunmoon University - Asan Campus View all articles by this author Metrics & Citations Metrics Article Usage 132 views 82 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Ali Raza, Inn-Yeal Oh. Compact Slow-Wave CMOS Wilkinson Using an Artificial Ground Structure. Authorea . 07 April 2026. 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