A GaAs Micromachined Millimeter-wave Lowpass Filter Using Microstrip Stepped-Impedance Hairpin Resonator

  • Cho Ju-Hyun (RFIC Education and Research Center, Kwangwoon University) ;
  • Yun Tae-Soon (RFIC Education and Research Center, Kwangwoon University) ;
  • Baek Tae-Jong (Millimeter-wave INovation Technology research center(MINT), Dongguk University) ;
  • Ko Baek-Seok (Millimeter-wave INovation Technology research center(MINT), Dongguk University) ;
  • Shin Dong-Hoon (Millimeter-wave INovation Technology research center(MINT), Dongguk University) ;
  • Lee Jong-Chul (RFIC Education and Research Center, Kwangwoon University)
  • 발행 : 2004.12.01

초록

In this paper, microstrip stepped-impedance hairpin resonator (SIR) lowpass filter f.PF) by surface rnicromachining on GaAs substrate is sugsested. This filter has the advantages of compact side, easy fabrication, and sharp cutoff frequency response. The new SIR LPF shows the 3 dB passband of dc to 33 GHz, the insertion loss of 0.82 dB, and the return loss of better than 17 dB up to 25.57 GHz. This filter is useful for many microwave system applications.

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