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Design of Microstrip LPF with Sharp Cut-off Frequency and Wide Stopband
-
G. Karimi
,
M. Yazdani
Published/Copyright:
June 4, 2014
Abstract
A novel lowpass filter with wide stopband and sharp skirt characteristics is proposed. To obtain the applicable lowpass filter, several cells of coupled T-shaped resonator, U-shape and dumbbell-shaped resonators are connected in series. The proposed filter has low insertion loss, high return loss in the passband and wide stopband. The transition band is from 3.18 to 3.29 GHz with −3 and −20 dB, respectively. Results of the fabricated filter exhibit a roll-off and relative stopband bandwidth of 217 and 137%, respectively. Measurement and simulation results show good agreement.
Received: 2013-8-13
Published Online: 2014-6-4
Published in Print: 2014-7-1
©2014 by Walter de Gruyter Berlin/Boston
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- Circularly Polarized Double Layered Printed Hemispherical Helical Antenna with a Parasitic Wire for Bandwidth Enhancement
- Broadband CPW-fed Circularly Polarized Falcate-shaped Monopole Antenna for UWB Applications
- Design of Microstrip LPF with Sharp Cut-off Frequency and Wide Stopband
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- Thermal and Structural Analysis of Co-axial Coupler used in High Power Helix Traveling-Wave Tube
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- Experiments on Tree Reflectivity at C, X, K and Ka-bands
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