In this paper a novel branch line coupler (BLC) with size reduction and performance improvement at 2.4 GHz is proposed. The proposed branch line coupler suppresses the second harmonic with 38.55 dB attenuation level. The scattering parameters of the proposed BLC are giv More
In this paper a novel branch line coupler (BLC) with size reduction and performance improvement at 2.4 GHz is proposed. The proposed branch line coupler suppresses the second harmonic with 38.55 dB attenuation level. The scattering parameters of the proposed BLC are given as follows: S11= -67.67 dB, S12= -2.95 dB, S13= -3.09 dB and S14= -49.78 dB. The bended line structures and open-ended stubs are used in design process. The proposed BLC has 45.4% size reduction compare to the conventional one. The proposed device fabricated on RT/Duroid 5880 substrate.
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In this paper a novel compact 6-way Wilkinson power divider coupler (WPD) using composite lines is proposed, simulated and fabricated. The proposed structure consists of a 2-way divider and two 3-way dividers. The applied dividers have equal division ratios. In the pro More
In this paper a novel compact 6-way Wilkinson power divider coupler (WPD) using composite lines is proposed, simulated and fabricated. The proposed structure consists of a 2-way divider and two 3-way dividers. The applied dividers have equal division ratios. In the proposed structure long quadrature wavelength lines are replaced with small composite lines, which results in size reduction and harmonics suppression. Moreover for improved output ports isolations a resistor and a capacitor are used together. The designed device correctly works on 5.1 GHz
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