A compact triple-band bandpass filter with customizable frequencies

IEICE Electronics Express

Yu Guo²  Guann-Pyng Li¹  Zhiguo Yu²  Haodong Wu³  Yi Ni² 

[1] Department of Electrical Engineering and Computer Science, University of California, Irvine;School of Internet of Things Engineering, Jiangnan University;Nanjing University

关键词: customizable;    triple-band;    EBG;    bandpass filter;   

DOI  :  10.1587/elex.13.20160723

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(13)A novel design of a customizable triple-band EBG (Electromagnetic Bandgap) bandpass filter is proposed. The EBG filter is manufactured by a conventional 2-layer PCB process in RO4350 substrate with surface mounted lumped capacitors. Specific working frequency of each band of the filter can be selected on demand by adjusting the value of corresponding capacitors, while the filter’s performance and compact design is not compromised. The experimental results show a filter with size of 28.00 × 28.00 × 1.52 mm3 in PCB achieving performance of insertion loss of 2.57 dB, 2.82 dB; return loss of 13.35 dB, 28.09 dB at two passbands with center frequencies of 2.33 GHz, 4.23 GHz respectively. Good agreement was obtained where the filter exhibited the third passband with center frequency of 1.87 GHz. The filter has band to band isolation better than 36.0 dB.

【 授权许可】

Unknown