Title :
A Miniaturized and Low Insertion Loss LTCC Filter with Two Finite Transmission Zeros for Bluetooth Application
Author :
Yong-sheng Dai ; Ye, Zhong-Hua ; Li, Bao-Shan ; Lu, De-Long ; You, Yuan ; Qi, Gao-Pin ; Wang, Chao-Yu ; Song, Zhi-Dong ; Wang, Fei
Author_Institution :
Nanjing Univ. of Sci. & Technol., Nanjing
Abstract :
This letter outlines the design and manufacture of a miniaturized bandpass filter realized by low-temperature cofired ceramic (LTCC) technology for bluetooth applications. The bandpass filter with a central frequency of 2450 MHz and a 100 MHz passband is designed as a three-dimensional (3-D) structure based on lumped components. Experimental measurements were compared with modeling. The insertion losses in the passband (100 MHz) were less than 1.2 dB and the attenuation was more than 20 dB in the stop band. The area occupied by the filter is 1.6times0.8times0.6 mm3.
Keywords :
Bluetooth; UHF filters; band-pass filters; ceramics; Bluetooth; LTCC filter; attenuation; bandwidth 100 MHz; finite transmission zeros; frequency 2450 MHz; insertion loss; low-temperature cofired ceramic technology; lumped components; miniaturized bandpass filter; passband; three-dimensional structure; Attenuation; Band pass filters; Bluetooth; Ceramics; Filtering theory; Frequency; Insertion loss; Manufacturing; Passband; Propagation losses;
Conference_Titel :
Art of Miniaturizing RF and Microwave Passive Components, 2008. IMWS 2008. IEEE MTT-S International Microwave Workshop Series on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-2876-2
Electronic_ISBN :
978-1-4244-2877-9
DOI :
10.1109/IMWS.2008.4782280
