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- Title
TWO KINDS OF DUAL-BAND BANDPASS FILTER BASED ON A SINGLE SQUARE RING RESONATOR.
- Authors
Kun Deng; Shou-Jia Sun; Shuai Yang; Bian Wu; Chang-Hong Liang
- Abstract
In this paper, two kinds of dual-band bandpass filter (BPF) based on a single square ring resonator are presented, which are realized by loading capacitance or inductive stubs, respectively. Even-odd-mode analysis is applied to explain their model characteristics. One filter is implemented by loading a pair of capacitance stubs, and both in-band couplings can be tuned in a reasonable range. Another filter is completed by loading a pair of inductive stubs, and the first and second passband center frequencies can be controlled independently. For demonstration, two filters operating at 2.45/5.25 GHz and 2.4/5.25 GHz are designed and fabricated. The simulated and measured results show good agreements.
- Subjects
BANDPASS filters; ELECTRIC filters; ELECTRIC resonators; RESONATORS; ELECTRIC capacity
- Publication
Progress in Electromagnetics Research C, 2013, Vol 44, p251
- ISSN
1937-8718
- Publication type
Article
- DOI
10.2528/pierc13092506