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Design of UWB Band-pass Filters with GPS Band Rejection

Seung-back JUNG, Seung-in YANG

 

Dept. of Electronic Engineering, Soongsil University, Seoul 156- 743, Korea

 

Abstract-This paper presents a compact Ultra-Wideband(UWB) ba nd-pass filter using a high-pass filter and a low-pass, and the resonator wit h lumped elements. The structure of our proposed band-pass filter is very simpl e and the Defected Ground Structure(DGS) structure is used to get the low-pass  filter characteristics. This proposed band-pass filter can be much smaller than  a cascaded type filter. As a result of simulation, the insertion loss is less t han 0.3 dB throughout the pass-band of 2.2 GHz~10.6 GHz, while the return loss  is more than 18 dB. And it has rejection level of 36 dB at GPS band.

 

Key words-UWB; band-pass filter; rejection

 


Manuscript Number: 1674-8042(2010)02-0148-04

 


dio: 10.3969/j.issn.1674-8042.2010.02.12

 

References

 

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[8]Sungtek Kahng, Jeongho Ju, 2008. Design of the novel compact UWB ban dpass filters using the SIR-type transversal structure.  The Journal  of Korean Institute of Electromagnetic Engineering and Science, 19(2):  102-106.

[9]Jeongho Ju, Sungtek Kahng, 2007. Design of the miniaturized UWB band  pass filter using the 1 unit of CRLH-TL.  The Journal of Korean Inst itute of Electromagnetic Engineering and Science, 18(2): 1402-1407.
 

 

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