DESIGN AND ANALYSIS COMPACT MICROSTRIP BAND PASS FILTER AT 2GHZ

摘要

Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable{mso-style-name:"Table Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-qformat:yes;mso-style-parent:"";mso-padding-alt:0in 5.4pt 0in 5.4pt;mso-para-margin:0in;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:minor-bidi;} In this paper, a microstrip band pass filter for wireless application is presented. The filter whose centre frequency is 2 GHz is fabricated on FR4 substrate.   Tapped input/output lines and stepped impedance resonator are used in this filter.   For the designed filter, return loss of 37 dB with a 3 dB fractional bandwidth of 330MHz is obtained. The simulated and experimental results are in good agreement. During the design and analysis of the proposed filter, MOM based IE3D software is used.