A Dual Passband Filter using Hybrid Microstrip Open Loop Resonators and Coplanar Waveguide Slotline Resonators

Autor: Hao-Jia Lin, Xiaowei Shi, Cun-Long Li, Lei Chen, Xiao-Qun Chen
Rok vydání: 2010
Předmět:
Zdroj: Journal of Electromagnetic Waves and Applications. 24:141-149
ISSN: 1569-3937
0920-5071
DOI: 10.1163/156939310790322118
Popis: A novel dual passband filter using hybrid microstrip open loop resonators and coplanar waveguide (CPW) slotline resonators is proposed. With the CPW feeding structure, the center frequencies and 3-dB fractional bandwidth (FBW) can be achieved relatively independently. The external quality factor and coupling coefficient of the resonators are obtained. The proposed dual passband filter has center frequencies of 2.44 GHz and 3.5 GHz, which could be appropriately used for wireless local area networks (WLAN) and WiMax. Good agreement between simulated and measured results is demonstrated.
Databáze: OpenAIRE