Abstract
In this paper, dual-band bandpass and bandstop filters using composite right/left-handed (CRLH) metamaterial transmission lines (TLs) are developed. The conventional bandpass and bandstop filters are first designed using quarter-wave short-circuited and open-circuited stubs, respectively. Then the dual-band filters with arbitrary dual operating bands can then be easily implemented by replacing the microstrip lines with the CRLH TLs. The dual-band bandpass and bandstop filters using the CRLH TLs are experimentally demonstrated at dual operating frequencies 1 GHz and 1.9 GHz. The measured results are in a good agreement with the simulated results. From the measured performances, the dual-band bandpass filter has 29.8% and 17.3% pass bandwidths, while the dual-band bandstop filter has 12.2% and 6.9% stop bandwidths with 30dB attenuation.
| Original language | English |
|---|---|
| Article number | 4015065 |
| Pages (from-to) | 931-934 |
| Number of pages | 4 |
| Journal | IEEE MTT-S International Microwave Symposium Digest |
| DOIs | |
| State | Published - 2006 |
| Event | 2006 IEEE MTT-S International Microwave Symposium Digest - San Francisco, CA, United States Duration: 11 Jun 2006 → 16 Jun 2006 |
Keywords
- Bandpass filters
- Bandstop filters
- Dual-band
- Left-handed (LH)
- Transmission lines (TLs)