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Perforated microstrip structure for miniaturising microwave devices

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3 Author(s)
Gue-An Lee ; Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA ; Hai-Young Lee ; De Flaviis, F.

The perforated slow-wave microstrip is proposed for high-frequency microwave devices and characterised experimentally and theoretically up to 7 GHz. The perforated structure is realised with a periodic-inductive-section-maintained uniform edge-shape. The slow-wave factor is demonstrated to be 1.2 times larger than that of a conventional microstrip over a wide frequency range. The perforated slow-wave microstrip shows reduction of physical length and superior quality-factor. The proposed structure is easier to fabricate than other slow-wave structures, which require multilayer substrates

Published in:

Electronics Letters  (Volume:38 ,  Issue: 15 )