Novel Compact Tri-Band Bandpass Filter With Controllable Bandwidths

作者：Chu Qing Xin^*; Wu Xiao Hu; Chen Fu Chang

来源：IEEE Microwave and Wireless Components Letters, 2011, 21(12): 655-657.

DOI：10.1109/LMWC.2011.2172593

• Bandpass filter (BPF)
• compact
• controllable bandwidths
• tri-band

Novel compact tri-band bandpass filter (BPF) with controllable bandwidths is presented in this letter. The tri-band performance is realized by using three sets of resonators, i.e., two sets of short-stub loaded dual-mode resonators, which are designed for the first and second passband, respectively, and half-wavelength resonators for the third passband. The three passband frequencies and bandwidths could be independently tuned and designed. The half-wavelength resonators are embedded between the two dual-mode resonators and serve as part of feed lines for the first and second passband, thus compact size is realized. The newly designed tri-band BPF is verified by circuit implementation and good agreement between the simulated and measured results can be observed.

• 出版日期2011-12
• 单位华南理工大学