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In this paper, a Frequency Selective Surface (FSS) radome with a horn system was analyzed. A new coupled resonator spatial filter (CRSF) consisting of hexagon patch and circular aperture was firstly used in W-band. The FSS element shows stable performance with the polarization state and angle of incident wave. The horn composed of the FSS radome placed in its near-field region was designed. The antenna...
This paper presents a Cassegrain reflector system consisted of a curved frequency selective surface (CFSS) for a sub-reflector. The CFSS, a conformal hyperboloid with circular ring elements, reflects W-band and transmits infrared region. We designed three CFSS models using different methods. The results not only showed that antenna patterns for the system of CFSS coincided very well with the system...
The design and modeling of a compact microwave ultra-wideband bandpass filter (BPF) are presented, by cascading three coplanar-waveguide (CPW) resonators. Electromagnetic band gap (EBG) structures are utilized in the proposal design to pursue good RF performances. The BPF is operated from 13.5 to 25 GHz with good stop rejection and sharp roll-off frequency. Its stop rejection levels are -20 dB in...
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