Microstrip coupled line bandpass filter with radial stubs for narrow-band applications

Azam, S. M. Kayser and Ibrahimy, Muhammad Ibn and Motakabber, S. M. A. and Hossain, Abul K. M. Zakir (2017) Microstrip coupled line bandpass filter with radial stubs for narrow-band applications. International Journal of GEOMATE, 13 (40). pp. 183-188. ISSN 2186-2982 E-ISSN 2186-2990

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Abstract

The necessity of creating channels by utilizing narrow-bands in high frequency regions is a matter of concern for the next generation-oriented wireless communication systems. A microstrip bandpass filter for narrow-band applications has been proposed in this article. Two coupled line filters with tapered line resonators are loaded at the mid-points of two identical pairs of radial stubs. The scalable length of microstrip lines to extend the radial stubs provides over 536 MHz shift of the resonant frequency with a narrow-band at each perturbing step. The proposed filter has been designed on Taconic TLX-8 substrate with 0.5 mm thickness and its filtering parts occupy a nominal area of 131.09 mm2 without feedlines. The fabricated filter exhibits nearly a 50 MHz pass-band at 6.428 GHz center frequency according to the measurement. Steep response of this filter entirely attenuates the out-band signal which enables it to be suitable for narrow-band applications in the higher frequency regions of C-band and ultra-wideband.

Item Type:	Article (Journal)
Additional Information:	4637/60701
Uncontrolled Keywords:	Microstrip, Bandpass Filter, Coupled Line, Radial Stubs, Narrow-band
Subjects:	T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Dr Muhammad Ibrahimy
Date Deposited:	21 Dec 2017 13:13
Last Modified:	06 Mar 2018 08:52
URI:	http://irep.iium.edu.my/id/eprint/60701

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