Frequency-domain measurement of indoor UWB channels

✍ Scribed by A. Bayram; A. M. Attiya; A. Safaai-Jazi

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 142 KB
• Volume: 44
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.20563

✦ Synopsis

between the two degenerate modes is characterized by the coupling coefficient [15] and is dependent on the structure of the perturbation [16]:

where f H and f L are the respective peak-resonance frequencies. Moreover, the three attenuation poles coincide exactly with those of the simulated results. The return losses of the type 2 and type 3 filters are shown in Figures 6(b) and 7(b), respectively, and the levels are maintained at acceptable value.

CONCLUSION

In this paper, we have implemented and analyzed BSFs with ring resonators. The attenuation poles were obtained using the ABCD matrix. We have utilized different perturbation elements to control the attenuation poles in order to obtain good performance. The numerical calculation of the lumped elements agrees with the simulation and measurement. In addition, all the simulated and measured results of the filters have been presented and compared with the theoretical results.