International Journal of Electronic Engineering and Computer Science
Articles Information
International Journal of Electronic Engineering and Computer Science, Vol.2, No.3, Aug. 2017, Pub. Date: Nov. 16, 2017
Tunable Microstrip Low Pass Filter with Modified Open Circuited Stubs
Pages: 11-15 Views: 1695 Downloads: 634
[01] Abdessamed Chinig, Microwave Group, Faculty of Sciences and Techniques, Hassan 1st University, Settat, Morocco.
This paper presents a new design approach to achieve tunable microstrip low pass filters with compact size and good electrical performances. The proposed filter consists of a fork-shaped resonator coupled directly to two transmission lines. First, the low pass filter was designed to have a Chebyshev response with slightly wider bandwidth and high rejection. The second step of our design approach was to replace the transmission line in the middle of the circuit by a fork-shaped resonator. In order to control the tunability of the low pass filter, three identical capacitors was integrated in the extremities of the open circuited stubs. The simulation results obtained with schematic environment of (Advanced Design System) ADS solver show that it is possible to obtain a tunable low pass filter with low loss, high rejection, and wide stop band.
Fork-Shaped Resonators, Low-Pass Filter, Microstrip, Open Circuited Stubs, Tunable Capacitors
[01] Pozar, D. M. (2009). Microwave engineering. John Wiley & Sons.
[02] Hinojosa, J., Saura-Ródenas, A., Alvarez-Melcon, A., & Martínez-Viviente, F. L. (2017). Electronically tunable microstrip bandstop filters using a varactor-loaded open ring resonator (VLORR). Applied Physics A, 123 (7), 477.
[03] Görür, A. K., Karpuz, C., Görür, A., Dogan, E., & Uysal, B. (2016, December). Design of tunable microstrip bandstop filter. In Microwave Conference (APMC), 2016 Asia-Pacific (pp. 1-4). IEEE.
[04] Rezaei, A., & Noori, L. (2017). Tunable microstrip dual-band bandpass filter for WLAN applications. Turkish Journal of Electrical Engineering & Computer Sciences, 25 (2), 1388-1393.
[05] Karpuz, C., Gorar, A. K., & Basmaci, A. N. (2016, October). Design of tunable microstrip dual-mode bandpass filter having reconfigurable filtering characteristics for mobile applications. In Microwave Conference (EuMC), 2016 46th European (pp. 647-650). IEEE.
[06] Koirala, G. R., & Kim, N. Y. (2017). Compact and tunable microstrip tri‐band bandstop filter incorporating open‐stubs loaded stepped‐impedance‐resonator. Microwave and Optical Technology Letters, 59 (4), 815-818.
[07] Li, R. S., Chen, F. C., & Shao, Q. (2017, May). A tunable bandpass-to-bandstop filter using stub-loaded resonators and PIN diode. In Millimeter-Waves, 2017 10th Global Symposium on (pp. 21-23). IEEE.
[08] Hong, J. S. G., & Lancaster, M. J. (2004). Microstrip filters for RF/microwave applications (Vol. 167). John Wiley & Sons.
[09] Awang, Z. (2014). Microwave systems design. Springer Singapore.
[10] Srikanth, S., & Jeyalakshmi, V. (2015). Compact UWB micro strip band pass filter with open circuited stubs. Indian Journal of Science and Technology, 8 (13).
MA 02210, USA
AIS is an academia-oriented and non-commercial institute aiming at providing users with a way to quickly and easily get the academic and scientific information.
Copyright © 2014 - American Institute of Science except certain content provided by third parties.