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1. V-band cross-coupled SIW band-pass filter with an antisymmetric U-slot negative coupling structure.

Author

Guo, Zengxu, Chin, Kuo-Sheng, Che, Wenquan, and Chang, Chih-Chun

Subjects
BANDPASS filters, ANTISYMMETRIC state (Quantum mechanics), MAGNETIC coupling, LOW temperatures, SUBSTRATES (Materials science), WAVEGUIDE filters, PHYSICS experiments
Abstract

This study presents an low-temperature cofired ceramic (LTCC) V-band cross-coupled band-pass filter using substrate-integrated waveguide cavities. Two antisymmetric U-shaped slots connected by via is proposed to construct the negative coupling structure, which is simple and especially useful for 60 GHz applications. Moreover, the U-slot structure possesses a wide range of realizable coupling coefficients from −0.008 to −0.075. An experimental LTCC fourth-order filter was fabricated for demonstration, achieving a bandwidth of 12% (7.2 GHz) at 59.6 GHz with superior frequency selectivity. [ABSTRACT FROM AUTHOR]

Published
2013
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