Keyword : spurious responses

Realization of Attenuation Poles, Spurious Resonance Suppression and Size Reduction by Microstrip SIR Loaded with Dielectric Rods
Ramesh K. POKHAREL  Kouji WADA  Osamu HASHIMOTO  Takeshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/12/01
Vol. E88-C  No. 12  pp. 2302-2309
Type of Manuscript: Special Section PAPER (Special Section on Wireless Technologies and Computational Electromagnetics)
Category: Devices
Keyword: 
attenuation pole,  dielectric rods,  FDTD method,  spurious responses,  SIR,  tapped λ/2 microstrip resonator, 
  Summary |  Full Text:PDF (630.6KB)
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 BPF,  attenuation poles,  out-of-band characteristics,  spurious responses,  microstrip line, 
  Summary |  Full Text:PDF (1.3MB)
A Method for LTCC Resonators to Realize Improved-Resonant Characteristics on Reduced-Size Microstrip Structure
Ramesh K. POKHAREL  Kouji WADA  Osamu HASHIMOTO  Takeshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/09/01
Vol. E87-C  No. 9  pp. 1517-1523
Type of Manuscript: Special Section PAPER (Special Section on Wave Technologies for Wireless and Optical Communications)
Category: Components and Devices
Keyword: 
dielectric rods,  FDTD method,  microstrip resonator,  spurious responses,  attenuation pole, 
  Summary |  Full Text:PDF (791.6KB)
An Effective Method for Designing Bandpass Filters Using λ/4 Resonators for Improving Out-of-Band Characteristics
Kouji WADA  Tomohide KAMIYAMA  Osamu HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/02/01
Vol. E86-C  No. 2  pp. 150-161
Type of Manuscript: Special Section PAPER (Special Issue on Circuit and Device Technology for High-Speed Wireless Communication)
Category: Passive (Filter)
Keyword: 
λ/4 resonator,  attenuation pole,  skirt characteristics,  spurious responses,  bandpass filter, 
  Summary |  Full Text:PDF (1.1MB)
Technique for Improving Out-of-Band Characteristics of Planar Microwave Filters Using Tapped Resonators
Kouji WADA  Kouichi NAKAGAWA  Osamu HASHIMOTO  Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/02/01
Vol. E85-C  No. 2  pp. 391-399
Type of Manuscript: PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
tapped resonator,  attenuation pole,  spurious responses,  planar microwave filter, 
  Summary |  Full Text:PDF (797.1KB)