MICROSTRIP CROSS COUPLED BANDPASS FILTERS WITH ASYMMETRIC FREQUENCY CHARACTERISTICS

A microstrip cross coupling bandpass filter includes an input port, an input resonator, an output port, and an output resonator. The input port and the input resonator are electric-coupled, and the output port and the output resonator are electric-coupled. A cross coupling gap corresponding to the d...

Full description

Saved in:
Bibliographic Details
Main Authors LEE, SANG SEOK, KO, KYOUNG SUK, JUN, DONG SUK, LEE, HONG YEOL, KIM, DONG YOUNG, CHO, KYOUNG IK
Format Patent
LanguageEnglish
Published 29.06.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
WAVEGUIDES
Online AccessGet full text

Cover

More Information
Summary:A microstrip cross coupling bandpass filter includes an input port, an input resonator, an output port, and an output resonator. The input port and the input resonator are electric-coupled, and the output port and the output resonator are electric-coupled. A cross coupling gap corresponding to the distance between the input and output resonators forms magnetic coupling. The bandpass filter further includes a cross coupling line electric-coupled with the input and output ports. The cross coupling gap generates an attenuation pole on the high side of a passband. The attenuation frequency of the attenuation pole can be varied with the distance of the cross coupling gap. The cross coupling line generates an attenuation pole on the high and low sides of the passband.
Bibliography:Application Number: KR20030096309