1) School of Information and Control Engineering, China University of Mining and Technology
2) Department of Electronic Engineering and Information Science, University of Science and Technology of China
3) Department of Electrical, Electronic and Computer Engineering, Heriot-Watt University
single-band BPF, dual-band BPF, dual-mode
The final version of this article with its full bibliographical information is available. To access the article, click here (Vol. 14 (2017), No. 19 pp. 20170832-20170832).
In this paper, a novel structure of One-Third-Mode Substrate Integrated Waveguide Resonator (OTMSIWR) is first proposed, which reduces about 65% size. Based on the OTMSIWR, a single-band bandpass filter (BPF) operats at 4.55GHz is designed. The single-band BPF has a wide and deep upper stopband. Further, a dual-band BPF using high mode technology based on the single-band filter is designed. The fundamental mode (TM101 mode) and high mode (TM201 mode) are utilized to achieve the dual-band response. The center frequencies locate at the 4.2GHz and 6.15GHz, respectively. Two transmission zeros (TZs) are achieved in the dual-band BPF by adjusting the positions of the feeds. To further improve the selectivity of the upper stopband of the dual-band BPF, two pairs of Complementary Split-Ring Resonators(CSRRs) are introduced on the surface of the OTMSIWR, which obtain the desired results. Finally, a single-band BPF and a dual-band BPF are fabricated and tested. The measured results agreed well with the simulated ones, which proved that the proposed structure is a good candidate to design filters.
Edited and published by : The Institute of Electronics, Information and Communication Engineers Produced and listed by : Komiyama Printing Co., LTD.