科研之友
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摘要
A novel miniaturised microstrip lowpass filter has been studied. With triangular and high-low impedance resonators symmetrically loaded, the proposed filter has successfully achieved size reduction and performance enhancement simultaneously. A demonstrator filter with 3 dB cutoff frequency at 1.5 GHz has been designed, fabricated and measured. Results show that a roll-off of 257 dB/GHz together with a relative stopband bandwidth of 157.4% can be obtained while achieving a high figure-of-merit of 38747.
- 出版日期2010-4-15
- 单位南京理工大学
