Abstract:Abstract-In this paper, a novel narrowband frequency selective surface (FSS) with a stable performance based on substrate integrated waveguide technology is presented. The unit cell of the FSS consists of a double-sided metalized substrate with a circular hole and a SIW circular cavity. In this way, incident EM waves enter the circular cavity and excite a TM 110 cavity resonance, leading to a narrow passband. The high-Q property of the TM 110 cavity resonance provides a very good wide-angle and polarization-in… Show more
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