Design of Dual-Band Substrate Integrated Waveguide Filter Using Frequency Transformation Method
A dual-band substrate integrated waveguide (SIW) filter is designed in this paper. This design is based on the frequency transformation from the normalized frequency domain to the actual frequency domain, which can calculate the coupling coefficients and the external quality factors analytically. In the realization, the dual-band resonator is utilized to replace each capacitance in the low-pass prototype circuit as the building block of the dual-band filter. To validate the method, a practical SIW dualband filter is designed and fabricated with passbands at S.85-5.95GHz and 6.05-0.15GHz, respectively, which has a maximum return loss of 15 dB in each passband.
substrate integrated waveguide (SIW) dual-band filter frequency transformation
Jia Chen Bian Wu Li-Wei Jiang Chang-Hong Liang
National Key Laboratory of Antennas and Microwave Technology, Xidian University NO.2 TAIBAI SOUTH ROAD XIAN 710071 P.R..CHINA
国际会议
成都
英文
1286-1289
2010-05-08(万方平台首次上网日期,不代表论文的发表时间)