Record number :
66180
Title of article :
All-planar dual-mode asymmetric filters at Ka-band
Author/Authors :
C.-K.C.، Tzuang, نويسنده , , Chen، Ho-Chung نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
-110
From page :
111
To page :
0
Abstract :
All-planar dual-mode inductive asymmetric filters utilizing new planar microstrip to dielectric-loaded rectangular waveguide transitions at Ka-band were presented and built in this work. The conventional, three-dimensional metallic rectangular waveguide dual-mode filters can be implemented into mature PCB technology with a much easier and lower-cost fabrication process on the basis of the all-planar feature of the transition. This work demonstrates two Ka-band filter examples with center frequency at 31 GHz and bandwidth at 1 GHz and 2 GHz. The measured minimum insertion loss of each case was, respectively, 2.68 and 1.12 dB, with greater than 10 dB return loss in the passband. Moreover, the measured side-band attenuation (near passband) is larger than 30 dB due to the transmission zeros at each side of the passband.
Keywords :
Use of global and time-dependent local dominance rules to improve the neighborhood structure of the search space , Effectiveness of the algorithm , Exploration capability of the genetic algorithm
Journal title :
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
Serial Year :
2003
Link To Document :
بازگشت