论文信息 - Miniaturized lowpass filters with out-of-band improvement by using defected ground plane structure as shunt series stubs

Miniaturized lowpass filters with out-of-band improvement by using defected ground plane structure as shunt series stubs

This paper presents the design of miniaturizedand low-spurious-response lowpass filters using defected ground plane structure. In our structure, the capacitances and inductances are realized thanks to open-circuited parallel stubs and short-circuited serie stubs respectively. The short-circuited serie stubs are achieved by using defected ground plane structure @GS). This induces an important size reduction. Moreover, the different transmission zeros can be used to control out-of-band response. Finally, filters are presented in multilayer technology.

C. Quendo | C. Person | E. Rius

[1] Sang Hyun Park. Accurate power detection of a CDMA multi-carrier power amplifier using a logarithmic amplifier , 2004 .

[2] W. Menzel,et al. Multilayer suspended stripline and coplanar line filters , 1994 .

[3] YOUNG BIN CHO,et al. Small-sized quasi-elliptic function microstrip low pass filter based on defected ground structures and open stubs , 2004 .

[4] Yongchae Jeong,et al. Amplifier design using a λ/4 high impedance bias line with a defected ground structure (DGS) , 2002 .

[5] C. Person,et al. Integration of optimized low-pass filters in band-pass filters for out-of-band improvement , 2001, IMS 2001.

[6] W. Menzel,et al. On The Design of Planar Microwave Components , 1992 .

[7] K. Gupta,et al. Microstrip Lines and Slotlines , 1979 .

[8] A. Abdel-Rahman,et al. Control of bandstop response of Hi-Lo microstrip low-pass filter using slot in ground plane , 2004, IEEE Transactions on Microwave Theory and Techniques.