Premium
Miniaturized LTCC elliptic‐function lowpass filters with wide stopbands
Author(s) -
Hsieh LungHwa,
Dai Steve
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29237
Subject(s) - stopband , low pass filter , elliptic filter , filter (signal processing) , materials science , electronic engineering , prototype filter , butterworth filter , harmonics , insertion loss , band pass filter , microwave , acoustics , optoelectronics , electrical engineering , physics , engineering , telecommunications , voltage
A compact, high‐selectivity, and wide stopband lowpass filter is highly demanded in wireless communication systems to suppress adjacent harmonics and unwanted signals. In this letter, a new miniaturized lowpass filter with elliptic‐function frequency response is introduced. The filter is fabricated in multilayer low temperature cofired ceramics. The size of the miniaturized filter is 5.5 × 3.9 × 1.72 mm 3 . The measured insertion loss of the filter is better than 0.37 dB from DC to 1.28 GHz and the measured stopband of the filter is great than 22 dB from 2.3 to 7.5 GHz. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1956–1957, 2015