Ru-Yuan Yang

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This paper proposes a parallel coupled microstrip bandpass filter (BPF) with ring Electromagnetic Bandgap (EBG) cells on the middle layer for spurious suppression. The ring EBG cells of the middle layer add a good stopband-rejection mode to the second harmonics of the parallel coupled microstrip BPF with suppression of over −50 dB, without affecting the(More)
In this paper, a compact ultra-wideband bandpass filter (UWB-BPF) using pseudo-interdigital stepped-impedance resonators (PIDT-SIRs) is designed and implemented on a commercial printed circuit board (PCB) of RT/Duroid 5880 substrate. The first two resonant modes of the SIR are coupled together and they are applied to create a wide passband. The proposed(More)
In this paper, we propose a novel approach for designing planar dual-band bandpass filter on a novel feed scheme. While we design this filter, the novel feed scheme is used to generate two passbands at 1.8 GHz and 2.4 GHz for global system for mobile communications (GSM) and wireless local area network (WLAN). Novel feeding structures are introduced to(More)
This research presents an assessment of dielectric properties for the microwave phantom production (MPP). The presented MPP was constructed by mixing organic compounds and inorganic compounds, which having particular dielectric properties. In addition, the fabricated MPP was analyzed to evaluate the relative electromagnetic properties based on the basic(More)
An investigation of the photoluminescent properties and crystalline morphology of blue emitting LiBa1-xPO4:xTm3+ phosphors with various concentrations (x = 0.005-0.030) of Tm3+ ions were synthesized by microwave sintering. For comparison, the LiBa1-xPO4:xTm3+ powders sintered at the same sintering condition but in a conventional furnace were also(More)