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Article
Design of a very compact U-HI-LO low-pass filter using meander technique and quasi horn inductors for L-band and C-band applications
Microwave and Optical Technology Letters (2016)
  • Dr. Ahmed Boutejdar, German Research Foundation (DFG), Germany
Abstract
ABSTRACT
In this article, a novel very compact low pass filters, using Hi-Lo technique and meander method are proposed. The several proposed filters are designed using a modification along the microstrip line by addition of U form and a meander shape. The compact meander LPF consists of two thin microstrip lines, which are connected with 50-Ω microstrip feed lines and thus with the both SMA connectors and a width microstrip patch placed in the middle of the structure. This meander Hi-Lo topology has been placed on the RO4003 substrate with a relative dielectric constant εr = 3.38 and thicknesses h = 0.813 mm and a loss tangent of 0.0027. Additionally to a very good compactness, the structure exhibits simple design and fabrication, very low insertion loss in the passband of 1.5 dB, and it achieves a wide rejection bandwidth with overall 20 dB attenuation from 5.7 to 6.3 GHz. The compact low pass structure occupies an area of (0.337 λg × 0.253 λg) where λg = 60 mm is the wavelength at the cut-off frequency 2.75 GHz. The simulated and measured results show good agreement and validate the proposed approach. Such compact filter structures are used in various microwave system applications.
Keywords
  • very compact low pass filters,
  • Hi-Lo technique,
  • meander method
Publication Date
Summer December 22, 2016
DOI
10.1002/mop.30173
Citation Information
Dr. Ahmed Boutejdar. "Design of a very compact U-HI-LO low-pass filter using meander technique and quasi horn inductors for L-band and C-band applications" Microwave and Optical Technology Letters Vol. 58 Iss. 12 (2016) p. 2897 - 2901 ISSN: 1098-2760
Available at: http://works.bepress.com/drahmed-boutejdar/2/
Creative Commons license
Creative Commons License
This work is licensed under a Creative Commons CC_BY-NC International License.