Sanghoon Park and Ki-Jin Kim and Kwang-Ho Ahn and Hyeon-Woo Lee
Wideband Tunable RF Filters for Channel Selection in Crowded Spectral Bands
1342 - 1346
2013
7
10
International Journal of Electronics and Communication Engineering
https://publications.waset.org/pdf/17182
https://publications.waset.org/vol/82
World Academy of Science, Engineering and Technology
It is very effective way to utilize a very wide tunable filter in coexisting multistandards wireless communications environment. Especially, as the long term evolution (LTE) communication era has come, the multiband coverage is one of the important features required for the RF components. In this paper, we present the frequency conversion technique, and so generate two types of RF filters which are specially designed for the superb tunable ability to support multiple wireless communication standards. With the help of a complex mixing structure, the inherent image signal is suppressed. The RF bandpass filter (BPF) and notch filter achieve 1.8dB and 1.6dB insertion losses and 18 dB and 17 dB attenuations, respectively. The quality factor show greater than 30.
Open Science Index 82, 2013