A compact UHF bandpass filter with high stopband rejection based on multilayer LTCC technology

Author

Yongsheng Dai ; Dan Zhu

Author_Institution

Sch. of Electron. & Opt. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China

fYear

2014

fDate

7-10 Sept. 2014

Firstpage

740

Lastpage

743

Abstract

A compact UHF-band band-pass filter with high stop-band characteristics realized by multilayer low temperature cofired ceramic (LTCC) technology is proposed. Classical filter design methods and theoretical analysis are presented. The filter with a central frequency of 490 MHz and a 100MHz pass-band is designed as a three-dimensional (3-D) structure based on semi-lumped elements and semi-distributed elements. The overall size is just 6.4mm×4.0mm×1.5mm. Both simulation and measurement results are presented for comparison.

Keywords

UHF filters; band-pass filters; crystal filters; 3D structure; 490 MHz; UHF filter; band-pass filter; classical filter design methods; compact filter; high stop-band rejection filter; multilayer LTCC technology; multilayer low temperature cofired ceramic technology; semidistributed elements; semilumped elements; size 1.5 mm; size 4 mm; size 6.4 mm; three dimensional structure; Band-pass filters; Couplings; Filtering theory; Microwave filters; Nonhomogeneous media; Optical filters; Resonator filters; High Stopband Rejection; LTCC; UHF; bandpass;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Personal Multimedia Communications (WPMC), 2014 International Symposium on

Conference_Location

Sydney, NSW

Type

conf

DOI

10.1109/WPMC.2014.7014913

Filename

7014913