Doan, M. and Che, W. and Nguyen, H.D. (2012) Novel compact dual-band bandpass filter using square ring resonators. In: 2012 5th International Conference on Advanced Technologies for Communications, ATC 2012, 10 October 2012 through 12 October 2012, Hanoi.
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A novel compact microstrip dual-band bandpass filter (BPF) using square ring resonators and good selectivity is proposed in this letter. The characteristics of the dual-mode resonator are investigated by using even-odd mode analysis. It is found that, the even- and odd-mode of resonators can be regulated by adjusting the lengths of open folder and square ring. Meanwhile, four transmission zeros are properly tuned to improve the selectivity of the two passbands and the rejections lower and upper stopband. A prototype of dual-band bandpass filter for WLAN (2.4 GHz) and WiMAX (3.5 GHz) applications is designed and fabricated for demonstration. The good agreement between simulation and measurement is obtained. © 2012 IEEE.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Divisions: | Faculties > Faculty of Radio-Electronic Engineering |
| Identification Number: | 10.1109/ATC.2012.6404229 |
| Uncontrolled Keywords: | Dual band bandpass filters (BPF); Dual mode resonators; Dual-band bandpass filter; Even- and odd-mode; Even-odd mode analysis; Fractional bandwidths; Microstripes; Passbands; Simulations and measurements; Square ring resonator; Square rings; Stopband; Transmission zeros; Optical resonators; Wimax; Bandpass filters |
| Additional Information: | Conference code: 95453. Language of original document: English. |
| URI: | http://eprints.lqdtu.edu.vn/id/eprint/10101 |
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