Dual-band bandpass filter in LTCC

A lumped-element dual-band bandpass filter for low temperature co-fired ceramic (LTCC) implementation is proposed. Design equation formulations are presented. For demonstration, one RF filter operating at 2.4 and 5.2 GHz is designed. Simulated and measured results are provided.

[1]  T. Ishizaki,et al.  A miniaturized monolithic dual band filter using ceramic lamination technique for dual mode portable telephones , 1997, 1997 IEEE MTT-S International Microwave Symposium Digest.

[2]  K.-K.M. Cheng,et al.  Multilayer LTCC bandpass filter design with enhanced stopband characteristics , 2002, IEEE Microwave and Wireless Components Letters.

[3]  C. Q. Scrantom,et al.  LTCC technology: where we are and where we're going. II , 1999 .

[4]  Joy Laskar,et al.  Development of integrated three dimensional Bluetooth image reject filter , 2000, 2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017).

[5]  Tomoki Uwano,et al.  A very small dielectric planar filter for portable telephones , 1993, 1993 IEEE MTT-S International Microwave Symposium Digest.

[6]  Jr. R. Wyndrum.  Microwave filters, impedance-matching networks, and coupling structures , 1965 .

[7]  C. Hsue,et al.  Dual-band bandpass filters using equal-length coupled-serial-shunted lines and Z-transform technique , 2004 .

[8]  Jia-Sheng Hong,et al.  Microstrip filters for RF/microwave applications , 2001 .

[9]  J. Sheen,et al.  A compact semi-lumped low-pass filter for harmonics and spurious suppression , 2000 .

[10]  Hsien-Shun Wu,et al.  Coalesced single-input single-output dual-band filter , 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

[11]  Juseop Lee,et al.  A dual-passband filter of canonical structure for satellite applications , 2004, IEEE Microwave and Wireless Components Letters.

[12]  Cheng-Liang Huang,et al.  Dual‐band multilayer ceramic microwave bandpass filter for applications in wireless communication , 2002 .