A Compact Band-Pass Filter with High Selectivity and Second Harmonic Suppression

Materials

Ramona Cosmina Hadarig¹  Maria Elena de Cos Gomez² 

[1] Signal Theory and Communications Area, Department of Electrical Engineering, University of Oviedo, Multi-Purpose Building, Module 8, Gijón 33203 (Asturias), Spain;

关键词: band-pass filter;    artificial magnetic conductor;    dispersion diagram;    second harmonic suppression;    transmission coefficient;   

DOI  :  10.3390/ma6125613

来源: mdpi

【 摘 要 】

The design of a novel band-pass filter with narrow-band features based on an electromagnetic resonator at 6.4 GHz is presented. A prototype is manufactured and characterized in terms of transmission and reflection coefficient. The selective passband and suppression of the second harmonic make the filter suitable to be used in a C band frequency range for radar systems and satellite/terrestrial applications. To avoid substantial interference for this kind of applications, passive components with narrow band features and small dimensions are required. Between 3.6 GHz and 4.2 GHz the band-pass filter with harmonic suppression should have an attenuation of at least 35 dB, whereas for a passband, less than 10% is sufficient.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.