K. Wada, Y. Aihara, K. Nakagawa, O. Hashimoto. New tap-coupling technique for improving skirt characteristics of a /spl lambda//4 resonator bandpass filter by placement of attenuation poles. In IEEE Asia Pacific Conference on Circuits and Systems 2002, APCCAS 2002, Singapore, 16-18 December 2002. pages 359-362, IEEE, 2002. [doi]
Abstract is missing.