论文信息 - Improved compact microstrip resonance cell lowpass filter with wide stopband characteristics

Improved compact microstrip resonance cell lowpass filter with wide stopband characteristics

An improved compact microstrip resonance cell (CMRC) structure is presented. Good lowpass performance and wide stopband characteristics can be achieved with a simple single resonant cell; four transmission zeros are introduced into the stopband and thus out-of-band rejection is significantly improved. Measured results of the fabricated prototype show that the insertion loss is less than 0.1 dB in the whole passband, and stopband bandwidth better than -10 dB is obtained from 2.9 to 15.9 GHz, which is an improvement of 138.3% from a conventional CMRC

Quan Xue | Wenquan Che | K. Deng

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