- 듀얼모드를 이용한 소형 UWB 필터
- Alternative Title
- A Compact UWB Ring Filter Using A Dual-Mode Resonator With Spurious Supression
- Publication Year
- 한국해양대학교 대학원
- A suggestion is proposed to use a circuit of microstrip ring resonators such as Ultra Wideband Bandpass filter in wireless communication.
The Ring Filter's dimension is small, with low insertion loss, satisfactory skirt characteristic and a constant group delay into the UWB bandwidth.
This filter makes it possible to control the cutoff frequencies which are dependent upon the ring and the parallel stub impedance. The rejected conditions of two cutoff frequencies on both side of the passband are dependable on parallel stub.
This Bandpass filter has cutoff frequencies between 3.1 and 10.7GHz with the resonable position of stub at the end of symmetry plane. The circuit conditions of two attenuation poles at either side of the passband are given together with controlling them. To reject spurious suppression which is placed at impedance zero, we employ stepped impedance line near input port and output port. This filter is appropriate for UWB systems in all applications.
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