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Microwave Planar Varactor Tuned Bandpass Filters: Historical Overview
Haeng-Seon LEE Sang-Won YUN
Publication
IEICE TRANSACTIONS on Electronics
Vol.E89-C
No.12
pp.1806-1813 Publication Date: 2006/12/01 Online ISSN: 1745-1353
DOI: 10.1093/ietele/e89-c.12.1806 Print ISSN: 0916-8516 Type of Manuscript: Special Section INVITED PAPER (Special Section on Emerging Microwave Techniques) Category: Keyword: bandpass filters, microstrip filters, tunable filters, varactors,
Full Text: PDF(429.2KB)>>
Summary:
This paper overviews the history of a class of varactor tuned bandpass filters. Since the miniaturization as well as the high performance of the tunable bandpass filters is required for the next generation mobile communication systems, the discussion is focused on the various planar type tunable filters including active configurations. Brief design concepts of various tunable filter configurations as well as their characteristics are discussed.
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