Title :
A fully embedded LTCC stripline parallel coupled BPF for 40 GHz BMWS application
Author :
Cho, Y.H. ; Lee, Y.C. ; Lee, J.W. ; Song, M.-S. ; Park, C.S.
Author_Institution :
Sch. of Eng., Inf. & Commun. Univ., Daejeon, South Korea
Abstract :
A low-loss fully embedded bandpass filter (BPF) is proposed using low-temperature cofired ceramic (LTCC) technology with enhanced stopband characteristics for the broadband multimedia wireless system (BMWS) applications. The measured insertion loss was as small as 1.7 dB at a center frequency of 41.8 GHz, and the return loss was 10.2 dB, including the loss associated with two stripline-to-CPW transitions. This six-layer BPF showed 3-dB bandwidth of 8.4% at a center frequency of 41.8 GHz and suppressed the local oscillator (LO) signal to 20 dB at a local oscillator frequency of 38.8 GHz.
Keywords :
band-pass filters; millimetre wave filters; strip line filters; strip line transitions; 1.7 dB; 10.2 dB; 38.8 GHz; 41.8 GHz; LTCC stripline parallel coupled band-pass filter; broadband multimedia wireless system; fully embedded filter; insertion loss; low-loss filter; low-temperature cofired ceramic technology; return loss; stripline-to-CPW transitions; Band pass filters; Coplanar waveguides; Electric variables measurement; Electromagnetic measurements; Electromagnetic waveguides; Impedance; Insertion loss; Loss measurement; Rectangular waveguides; Stripline;
Conference_Titel :
Radio and Wireless Conference, 2004 IEEE
Print_ISBN :
0-7803-8451-2
DOI :
10.1109/RAWCON.2004.1389075
