| Presentation | 2013-07-18 Theoretical Design of UWB Bandpass Filters Using Multistage Three-Line-Units J. ODA, C.-P CHEN, K. KAMATA, T. KATO, T. ANADA, Z. Ma, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An improved compound three-line unit, which can also be treated as the one constructed by inserting a 5/4-wavelength stepped-impedance resonator (SIR) into between parallel-coupled two lines, is proposed to implement wideband bandpass filters with high skirt-selectivity and out-of-band characteristics. A corresponding design/synthesis scheme is proposed after the mechanism of the proposed structures is investigated. Two pairs of transmission zeros are found in lower and upper stopbands due to the inserted 5/4-wavelength SIR, whereas a pair of spurious passbands are found near the transmission zeros farther from the passband. To suppress it, two open-circuited stubs, whose transmission zeros are the same frequencies of the spurious passbands, are used to replace the short-circuited ones loaded at input- and output- ports. Finally, a wideband filter with a bandwidth of 3-5GHz (FBW:50%) is designed to validate the effectiveness of the proposed structure and corresponding design scheme. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Ultra-wideband (UWB) / Transmission zeros / Steep skirt selectivity / Out-of-band / Bandpass filter (BPF) |
| Paper # | MW2013-51,OPE2013-20,EST2013-15,MWP2013-10 |
| Date of Issue |
| Conference Information | |
| Committee | OPE |
|---|---|
| Conference Date | 2013/7/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Optoelectronics (OPE) |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Theoretical Design of UWB Bandpass Filters Using Multistage Three-Line-Units |
| Sub Title (in English) | |
| Keyword(1) | Ultra-wideband (UWB) |
| Keyword(2) | Transmission zeros |
| Keyword(3) | Steep skirt selectivity |
| Keyword(4) | Out-of-band |
| Keyword(5) | Bandpass filter (BPF) |
| 1st Author's Name | J. ODA |
| 1st Author's Affiliation | Department of Electrical Electronics and Information Engineering, Kanagawa University() |
| 2nd Author's Name | C.-P CHEN |
| 2nd Author's Affiliation | Department of Electrical Electronics and Information Engineering, Kanagawa University |
| 3rd Author's Name | K. KAMATA |
| 3rd Author's Affiliation | Department of Electrical Electronics and Information Engineering, Kanagawa University |
| 4th Author's Name | T. KATO |
| 4th Author's Affiliation | Department of Electrical Electronics and Information Engineering, Kanagawa University |
| 5th Author's Name | T. ANADA |
| 5th Author's Affiliation | Department of Electrical Electronics and Information Engineering, Kanagawa University |
| 6th Author's Name | Z. Ma |
| 6th Author's Affiliation | Department of Electrical and Electronics Systems, Saitama University |
| Date | 2013-07-18 |
| Paper # | MW2013-51,OPE2013-20,EST2013-15,MWP2013-10 |
| Volume (vol) | vol.113 |
| Number (no) | 142 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |