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

作者：Cosmina Hadarig Ramona; de Cos Gomez Maria Elena; Las Heras Fernando

来源：Materials, 2013, 6(12): 5613-5624.

DOI：10.3390/ma6125613

• band-pass filter
• artificial magnetic conductor
• dispersion diagram
• second harmonic suppression
• transmission coefficient

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.

• 出版日期2013-12