A simple and effective method for microstrip dual-band filters design |
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| Authors: | Chu-Yu Chen Cheng-Ying Hsu |
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| Affiliation: | Dept. of Electron. Eng., Southern Taiwan Univ. of Technol., Tainan, Taiwan; |
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| Abstract: | A new type of novel low loss dual-band microstrip filters using folded open-loop ring resonators (OLRRs) is presented in this letter. Both magnetic and electric coupling structures are implemented to provide high performance passband response. The first passband and second passband of the designed dual-band filter can be easily and accurately shifted to a desired frequency band by adjusting the physical dimensions of OLRRs. Finally, the 2.4-GHz/5.7-GHz and 2.4-GHz/5.2-GHz dual-band filters are illustrated and measured in this letter. |
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