Takanobu OHNO


Out-of-Band Improvement by Microstrip Line BPFs with Multiple Attenuation Poles in Stopband Using Various Conditions of Coupling Length of Partially Coupled-Line Section
Kouji WADA Ramesh K. POKHAREL Takanobu OHNO Osamu HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/07/01
Vol. E88-C  No. 7  pp. 1430-1439
Type of Manuscript:  Special Section PAPER (Special Section on Recent Technologies of Microwave and Millimeter-Wave Devices Focusing on Miniaturization and Advancement in Performance with Their Applications)
Category: Resonators & Filters
Keyword: 
coupled-line BPFattenuation polesout-of-band characteristicsspurious responsesmicrostrip line
 Summary | Full Text:PDF

Realization of Low Spurious Responses by Various Bandpass Filters Using Open-Ended λ/2 Resonators
Kouji WADA Takanobu OHNO Kouichi NAKAGAWA Osamu HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/12/01
Vol. E86-C  No. 12  pp. 2394-2402
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Trends on Microwave and Millimeter Wave Application Technology)
Category: Passive(Filter)
Keyword: 
open-ended λ/2 resonatorbandpass filterpoint-coupling techniquelow spurious responsesattenuation poles
 Summary | Full Text:PDF

A Class of a Planar Duplexer Consisting of BPFs with Attenuation Poles Designed by Manipulating Tapped Resonators
Kouji WADA Takanobu OHNO Osamu HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1613-1620
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
planar duplexertapped resonatorattenuation polebandpass filter
 Summary | Full Text:PDF