Design and Fabrication of the Microwave Planar Bandpass Filter Using Microstrip Hairpin Resonators

• Main Authors: Wei-Ming Chen, 陳威銘
• Other Authors: Cheng-Liang Huang
• Format: Others
• Language: en_US
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/06411998922212271732

碩士 === 國立成功大學 === 電機工程學系 === 87 === Design and Fabrication of the Microwave Planar Bandpass Filter Using Microstrip Hairpin Resonators W. M. Chen* , C. L. Huang** , C. C. Wei** Department of Electrical Engineering National Cheng Kung University Tainan,Taiwan,R.O.C. ABSTRACT In the recent, miniature and low cost bandpass filters are very important in mobile communication systems. The planar filter structure is one of the possible choices for its compactness when realized with a high dielectric constant substract. In this paper,a planar bandpass filter has been designed and fabricated. In the filter design procedure,we have design three filter configurations including those of elliptic function response,which makes the frequency response sharper.And because we use the microstrip line configuration,and the I/O lines of this bandpass filter are placed on the same layer,it will be easy to be intergrated into RF module board,and hence suitable for mass-production. In the aspect of the filter substract manufacture,we choice the dielectric material: CNT have been used due to its good temperature stability,high Q value and high relative dielectric constant,respectively so that it is suitable for the planar filter substract. * The author ** The advisor