Design and Implementation of LTCC Bandpass Filters Using a Second Order Coupled Resonator Structure for WiMAX Applications
This thesis proposes an analytical method to synthesize bandpass filter with multiple transmission zeros. By using the six pre-determined parameters including two reflection zeros, two matching quality factors, and two transmission zeros, the method can exactly synthesize the corresponding prototype of second-order coupled-resonator bandpass filter. The synthesized filters not only can provide two pre-determined transmission zeros in the lower and upper side of the passband, but also can generate an extra transmission zero in the stopband. This thesis presents the prototypes of the bandpass filter and the methods of synthesis in detail. Finally this thesis implements compact LTCC bandpass filters by using the proposed synthesis method for 3.5 GHz WiMAX applications.
Advisor:Sung-Mao Wu; Tzyy-Sheng Horng; Ken-Huang Lin; Chih-Wen Kuo; Chih-Pin Hung
School:National Sun Yat-Sen University
School Location:China - Taiwan
Source Type:Master's Thesis
Keywords:bandpass filter transmission zero low temperature cofired ceramic ltcc
Date of Publication:07/21/2007