Ultra-wideband bandpass filter using matching-lines and interdigital filter with close-coupled resonators. - Yusuke Omote; Takenori Yasuzumi; Tomoki Uwano; Osamu Hashimoto (IEICE Electron. Express, 2012)

Ultra-Wideband Bandpass Filter with Sharp Attenuation Slope Using Inter-Digital Finger Resonator and Parallel-Coupled Lines. - Takenori Yasuzumi; Yusuke Omote; Tomoki Uwano; Osamu Hashimoto (IEICE Trans. Electron., 2012)