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This paper presents a wide bandwidth power divider using Stepped-Impedance Resonator (SIR) impedance matching structure. The SIR structure with a short-end stub is proposed to obtain matching to separated modes thus wide bandwidth response is achieved. There are two resistor and a capacitor in series instead of single resistor added between two output ports to improve the isolation. An experimental...
A compact monopolar patch antenna is presented in this paper. The antenna has a wide bandwidth and a monopole-like radiation pattern. To reduce the whole size of the antenna, a substrate with high dielectric constant is adopted. Besides, three types of shorting pins and a triangle slot are added to the patch to widen the impedance bandwidth. The proposed antenna operates from 2.29 to 2.59 GHz for...
A broadband patch antenna is presented for in this letter. It consists of two layers of substrate. The patch located at the top layer of the upper substrate for radiation while the ground plane located at the bottom layer of the lower one. Two differential L-probe are embedded in the lower substrate to obtain a wide impedance bandwidth (SWR<2) of 92.7%. Meanwhile, good radiation patterns are...
A novel differential-fed patch antenna (DFPA) is proposed in this letter. Based on a capacitance coupling feed, an impedance bandwidth (SWR<2) of 102% has been obtained. The cross-polarization is less than −15dB across the operating bandwidth because of the differential-fed.
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