Title :
LTCC-MLC balun for WLAN/Bluetooth
Author :
Jyh-Wen Sheen ; Ching-Wen Tang
Author_Institution :
Comput. & Commun. Res. Labs., Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
A low temperature co-fired ceramic (LTCC) multi-layer ceramic balun is presented in this paper. This balun is designed in the ISM band for WLAN or Bluetooth use. It uses multi-layer structure, meander lines, and multi-section coupled-lines with various coupling coefficients. The characteristics of phase balance and amplitude balance are extremely excellent because of its symmetric structure and a transmission line trimming section. Measured results of the LTCC-MLC balun match well with the computer simulation.
Keywords :
baluns; ceramics; coupled transmission lines; wireless LAN; Bluetooth; ISM band; LTCC-MLC balun; WLAN; amplitude balance; coupled transmission lines; low temperature co-fired ceramic multilayer ceramic balun; meander line; phase balance; Bandwidth; Bluetooth; Ceramics; Coupling circuits; Distributed parameter circuits; Frequency; Impedance matching; Process control; Transmission line theory; Wireless LAN;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.966896
