한국정보통신설비학회:학술대회논문집

Korea Institute of Information and Telecommunication Facilities Engineering (한국정보통신설비학회)
권호 표지

A Design of Balun-BPF for 2.45GHz Band of LTCC structure

LTCC Chip 형태의 2.45GHz 대역 Balun-BPF의 설계

  • Jung, Eul-Young (Dept. of Electrical and Computer Eng. Kangwon National University) ;
  • Choi, Kyoung (Dept. of Electrical and Computer Eng. Kangwon National University) ;
  • Hwang, Hee-Yong (Dept. of Electrical and Computer Eng. Kangwon National University)
  • 정을영 (강원대학교 전기전자정보통신공학부) ;
  • 최경 (강원대학교 전기전자정보통신공학부) ;
  • 황희용 (강원대학교 전기전자정보통신공학부)
  • Published : 2005.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents a LTCC Balun-BPF, which is a BPF(bandpass filter) with a Balun in a single LTCC chip for the direct interface with a MIC chip having balanced inputs. The physical dimension of the designed Balun-BPE is $2.4{\times}2.0{\times}0.88m^3$ and the used dielectric constant ${\varepsilon}_r$ is 36. A Balun of three-lines structure with striplines and a BPF of comb-line structure was combined into the Balun-BPF. The simulated result shows 4.8dB of insertion loss, $178{\sim}179$ degree of the phase imbalance, 14dB of the return

Keywords