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This paper proposes an Unbalanced-to-Balanced (UTB) Gysel type equal Power Divider (PD). Theoretical analysis has been performed to obtain design equations for the PD. UTB equal PD is design at 2 GHz. Based on the design equations, a prototype has been fabricated and measurement has been performed. The proposed PD shows in-phase characteristic. Greater than 20 dB isolation between two balanced ports...
A planar miniaturized asymmetrical four-port circuit structure based on the composite left- and right-handed transmission lines (CLRHTLs) is proposed in this paper to design a balanced-to-single-ended (BTSE) power divider (PD) with arbitrary power division. The two outputs of the power divider are in-phase, hence, the proposed circuit can be seen as the cascade of a balun and a Gysel power divider...
This work presents the design of a planar ultra-wideband (UWB) four-way power divider/combiner. A prototype has been fabricated on a printed circuit board and characterized. For achieving the frequency response required in UWB applications, each branch of the divider is conceived as a three-section Chebyshev impedance transformer. The defected ground structure (DGS) technique has been used to obtain...
In this paper, an arbitrary power division ratio (k2) power divider with prescribed wideband negative group delay (NGD) is presented using finite unloaded quality factor (Qu) resonators. The proposed power divider does not require any additional lumped resistive element to generate the NGD. From the analysis, it is found that the NGDs through different transmission paths are almost same and independent...
A simple yet efficient substrate integrated waveguide (SIW) crossover circuit is presented. It is formed by excitation of two orthogonal full-wavelength (TE102-mode) resonators whose centers coincide with that of the symmetric SIW cross junction. Half-wavelength (TE101-mode) resonators are added in all four ports to increase bandwidth. The SIW crossover is designed to operate at 24.75 GHz with a bandwidth...
This paper presents an electronically tunable filter implementation based on microstrip patch resonator surrounded by an electrical wall to reduce insertion loss of the filter. The dualmode tunable bandpass filter is realized using varactor diode elements. The passband of the filter covers different six states (responses) ranging from 2.0GHz to 2.53GHz. The filter exhibits an insertion loss of 1.68–3...
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