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- Title
A COMPACT MICROSTRIP DIPLEXER USING COMPOSITE RIGHT-/LEFT-HANDED TRANSMISSION LINE WITH ENHANCED HARMONIC SUPPRESSION.
- Authors
He-Xiu Xu; Guang-Ming Wang; Jian-Gang Liang; Tian-Peng Li
- Abstract
In this article, a novel microstrip diplexer operating at 1.8 GHz (GSM band) and 2.2 GHz, based on composite right-/left-handed transmission line (CRLH TL), is presented. The CRLH TL, using only one cell, is initially proposed based on Koch-shaped extended complementary single split ring resonator pair (K-ECSSRRP) etched in the ground plane and a series capacitive gap etched in the conductor strip. The extended Koch ring has been demonstrated, resulting in a wideband harmonic suppression, enhanced frequency selectivity and a lower operating frequency of the diplexer The high performance of the new structure enables the single cell to be well qualified for diplexer design and thus facilitates the compactness. The design concept has been verified by both numerical and experimental results of a fabricated prototype whose effective occupied area is only 15.6 × 28mm.
- Subjects
MICROWAVE devices; STRIP transmission lines; GSM communications; ELECTRIC resonators; ELECTRICAL conductors; FREQUENCY selective surfaces
- Publication
Microwave Journal, 2011, Vol 54, Issue 11, p112
- ISSN
0192-6225
- Publication type
Article