Abstract
A novel split ring and complementary split ring resonator is proposed in this letter.The proposed resonator can generate two notches without increasing the physical size. A microstrip lowpass filter (LPF) is designed based on the proposed resonator. The cutoff frequency of the designed LPF is 3.7 GHz and the stopband with an attenuation level lower than -20 dB is obtained from 3.9 to 7.5 GHz. The selectivity is calculated to be 85 dB/GHz. The physical size of the LPF with transmission lines is 29 × 6 mm 2. A good agreement between simulated and measured results is achieved.
| Original language | English |
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| Pages (from-to) | 1723-1726 |
| Number of pages | 4 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 54 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 2012 |
| Externally published | Yes |