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In this paper, a miniaturized integrated frequency selective surface (FSS) is proposed. It is composed of two parts: the band‐stop FSS and band‐pass FSS. Through introducing six capacitors between the hexagonal gap of band‐pass FSS, a miniaturized dimension of 0.07λ0 × 0.07λ0 × 0.036λ0 (λ0 is the wavelength of the transmission band in free space) is achieved. As a result, the presented FSS effectively...