Novel broadband planar balun using multiple coupled lines

被引:11
作者
Chen, Yu-Liang [1 ]
Lin, Hung-Hsuan [1 ]
机构
[1] Ind Technol Res Inst, Informat & Commun Res Labs, Hsinchu 310, Taiwan
来源
2006 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-5 | 2006年
关键词
balun; coupled fine; UWB; marchand balun; LTCC; multi-layer;
D O I
10.1109/MWSYM.2006.249615
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This study presents a novel broadband planar balun using multiple coupled lines, which are realized easily in thick-multi-layer structures, to improve broadband characteristics compared with the conventional planar Marchand balun. Additionally, an extra shunt capacitor is added to compensate the output amplitude and phase imbalances due to inductive grounding-vias. This balun is fabricated by LTCC (low temperature co-fired ceramic) technology and miniaturized successfully to 3.2 mm x 2.5 mm x 1 mm for UWB applications (3.1-8.0 GHz). Finally, the measured results agree well with the electromagnetic (EM) simulated responses.
引用
收藏
页码:1571 / +
页数:2
相关论文
共 7 条
[1]  
Gavela I, 2004, 34TH EUROPEAN MICROWAVE CONFERENCE, VOLS 1-3, CONFERENCE PROCEEDINGS, P373
[2]  
Malherbe J. A. G., 1979, Microwave Transmission Line Filters
[3]  
Marchand N., 1944, ELECTRONICS, V17, P142
[4]  
PAVIO AM, 1990, IEEE MTT S INT MICR, V1, P483
[5]   Chip-type LTCC-MLC baluns using the stepped impedance method [J].
Tang, CW ;
Sheen, JW ;
Chang, CY .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2001, 49 (12) :2342-2349
[6]   LTCC-MLC chip-type balun realised by LC resonance method [J].
Tang, CW ;
Chang, CY .
ELECTRONICS LETTERS, 2002, 38 (11) :519-520
[7]  
Tutt MN, 1997, IEEE MTT-S, P933, DOI 10.1109/MWSYM.1997.602953