A compact quasi-lumped LTCC diplexer for radar application

Author

Wang, Zhengwei ; Lai, Jinming ; Bu, Shirong ; Luo, Zhengxiang

Author_Institution

Sch. of Optoelectron. Inf., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2010

fDate

8-11 May 2010

Firstpage

860

Lastpage

863

Abstract

An integrated quasi-lumped diplexer based on low temperature cofired ceramic (LTCC) technology is presented. The diplexer is made of L-band low pass filter (LPF) formed by lumped element and X-band band pass filter (BPF) adopting step impendence resonator (SIR). The diplexer´s performance has been simulated and optimized by EM simulator. An experimental diplexer has been made and measured. The measured result of the frequency response agrees very well with the simulated one, the LPF´s insertion loss is less than 1dB, and 1dB cut-off frequency is 1.46GHz; the BPF´s insertion loss is less than 3.5dB, and 1dB bandwidth is about 0.6GHz at the center frequency 8.3GHz. Its good performance, small size and relatively simple structure make it a good candidate as an integrated diplexer for various LTCC systems.

Keywords

band-pass filters; ceramic packaging; frequency response; low-pass filters; multiplexing equipment; radar applications; EM simulator; L-band low pass filter; X-band band pass filter; compact quasi-lumped LTCC diplexer; frequency response; low temperature cofired ceramic technology; lumped element; radar application; step impendence resonator; Band pass filters; Ceramics; Cutoff frequency; Frequency measurement; Insertion loss; L-band; Loss measurement; Low pass filters; Radar applications; Temperature; Diplexer; LTCC; SIR; quasi-lumped;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5705-2

Type

conf

DOI

10.1109/ICMMT.2010.5525179

Filename

5525179