DUAL-BAND IN-/ANTI-PHASE FILTERING POWER DIVIDERS

作者：Qin, W.; Chen, J. -X.^*; Zhou, L. -H.; Bao, Z. -H.; Xue, Q.

来源：Microwave and Optical Technology Letters, 2016, 58(11): 2626-2629.

DOI：10.1002/mop.30118

• filtering power divider
• dual-band
• in-phase
• anti-phase
• stub-loaded resonator

This article presents a novel dual-band in-/anti-phase filtering power divider. The signals of the two output ports are symmetrically extracted from the resonator. Naturally, they are in-phase for even-mode passband but anti-phase for the odd-mode passband. The intrinsic reason is that a negative group delay (NGD) frequency band is presented between the two passbands, which opens a window for the change of the 180 degrees phase differences. For demonstration, a dual-band filtering power divider is designed and measured based on the stub-loaded resonators (SLRs). Good agreements are observed between the measured and simulated results, showcasing small magnitude and phase differences in both passbands.

• 出版日期2016-11
• 单位香港城市大学深圳研究院; 南通大学