Browse > Article

Design of Hair-Pin Band-Pass Filter Using New Equivalent Circuit of Tapped-Line  

Yun, Tae-Soon (Department of Radio Science & Engineering, Kwangwoon University)
Kwoun, Sung-Su (Department of Radio Science & Engineering, Kwangwoon University)
Hong, Tae-Ui (Department of Radio Science & Engineering, Kwangwoon University)
Lee, Jong-Chul (Department of Radio Science & Engineering, Kwangwoon University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.12, 2006 , pp. 1150-1155 More about this Journal
Abstract
In this paper, the equivalent circuit of tapped-line that is applied in the band-pass filter is suggested and the value of an equivalent circuit is mathematically defined. An equivalent circuit of tapped-line is composed by open stub and transmission line that has negative electrical length, and the position of tapped-line and the value of resonator's length can be obtained by the impedance of resonator and the inverter. The new design method using equivalent circuit leads to very good agreement compared with theoretical value. The hair-pin band-pass filter using equivalent circuit of tapped-line shows the insertion loss of 1.1 dB and the return loss of 20 dB at the center frequency of 2 GHz.
Keywords
Tapped-Line; Equivalent Circuit; Hair-Pin; Nand-Pass Filter;
Citations & Related Records
연도 인용수 순위
  • Reference
1 IE3D, ver. 10.2, Zeland Corp., CA, 2004
2 J. S. Hong, M. J. Lancaster, Microwave Filters for RF/Microwave Applications, John Wiley & Sons, 2001
3 E. G. Cristal, 'Tapped-line coupled transmission lines with applications to interdigital and combline filters', IEEE Trans. Microwave Theory Tech., vol. 23, no. 12, pp. 1007-1012, Dec. 1975   DOI
4 S. Caspi, J. Adelman, 'Design of combline and interdigital filters with tapped-line input', IEEE Trans. Microwave Theory Tech., vol. 36, no. 4, pp. 759-763, Apr. 1988   DOI   ScienceOn
5 J. S. Wong, 'Microstrip tapped-line filter design', IEEE Trans. Microwave Theory Tech., vol. 27, no. 1, pp. 44-50, Jan. 1979   DOI