Title :
Compact capacitive loaded ring filter with simplified feeding lines
Author :
Franc, Anne-Laure ; Prigent, Gaetan
Author_Institution :
LAPLACE ENSEEIHT, Univ. de Toulouse, Toulouse, France
Abstract :
This paper presents a variation of the conventional ring resonator. It consists in an easier feeding way with direct connections instead of classical coupling accesses. Besides, the ring is capacitively loaded in order to allow implementation of narrow-band filter and reduce its physical length. A synthesis is proposed to design the filter. Based on this ring resonator cell, a second-order and fourth-order bandpass filters are designed at 2.9 GHz in microstrip technology. They are then characterized and compared to electromagnetic simulations.
Keywords :
band-pass filters; microstrip filters; resonator filters; bandpass filters; capacitive loaded ring filter; feeding lines; frequency 2.9 GHz; microstrip technology; narrow-band filter; ring resonator cell; Band-pass filters; Bandwidth; Impedance; Microstrip filters; Microwave filters; Optical ring resonators; Resonator filters; microstrip filters; miniaturization; printed circuits;
Conference_Titel :
Microwave Conference (EuMC), 2014 44th European
Conference_Location :
Rome
DOI :
10.1109/EuMC.2014.6986665
