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December 2009 Issue: Technical Feature
Miniaturized Branch-line Coupler Employing Periodically Arrayed Grounded-strip Structure
In this work, a short guided-wavelength coplanar waveguide employing a periodically arrayed grounded-strip structure (PAGS) is proposed for the first time. Using a coplanar waveguide employing PAGS, a miniaturized branch-line coupler was realized in a silicon radio frequency integrated circuit (RFIC). The branch-line coupler exhibits good RF performance from 41.75 to 50 GHz and its size is 0.46 x 0.55 mm, which is 37 percent of a conventional one. This work is the first report of an on-chip coupler/divider employing transmission lines with a periodic structure on silicon substrate.
From: Vol. 52 | No. 12 | December 2009 | Page 90
by Young Yun, Young-Bae Park, Suk-Youb Kang, In-Ho Kang and Ji-Won Jung, Korea Maritime University Busan, Republic of Korea; Kyu-Ho Park, Korea Electronics Technology Institute Kyeongki-do, Republic of Korea
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