| Presentation | 2012-07-27 Three-bit Reconfigurable Band-Pass Filter using Branch-Line Type Variable Resonator Kazuhiro AZUMA, Ryosuke KOBAYASHI, Yasushi YAMAO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Multiple frequency bands are used for mobile communication systems. Current mobile terminals are installed with multiple radio circuits that cover the entire frequency bands and select one of them for communication. In order to make efficient use of frequency spectrum and to reduce circuit scale of terminals in the future, reconfigurable RF filters will be necessary that are able to flexibly change many frequencies. This paper proposes a new two-stage reconfigurable band-pass filter (BPF) having eight-frequency (three-bit) selection capability. It consists of branch-line switched type variable resonators. The frequency characteristics of the BPF are designed by EM simulations. A prototype on a printed circuit board with high dielectric constant substrate has been fabricated and evaluated in 2GHz bands. The measurement results are close to the design results with respect to insertion loss, center frequency and bandwidth, and low insertion loss of less than 1dB is achieved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Transmission line / Reconfigurable circuit / RF switch / Band-Pass filter |
| Paper # | MW2012-46,OPE2012-39,EST2012-28,MWP2012-27 |
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| Conference Information | |
| Committee | EST |
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| Conference Date | 2012/7/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electronic Simulation Technology (EST) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Three-bit Reconfigurable Band-Pass Filter using Branch-Line Type Variable Resonator |
| Sub Title (in English) | |
| Keyword(1) | Transmission line |
| Keyword(2) | Reconfigurable circuit |
| Keyword(3) | RF switch |
| Keyword(4) | Band-Pass filter |
| 1st Author's Name | Kazuhiro AZUMA |
| 1st Author's Affiliation | Advanced Wireless Communication Research Center(AWCC), The University of Electro-Communications() |
| 2nd Author's Name | Ryosuke KOBAYASHI |
| 2nd Author's Affiliation | Advanced Wireless Communication Research Center(AWCC), The University of Electro-Communications |
| 3rd Author's Name | Yasushi YAMAO |
| 3rd Author's Affiliation | Advanced Wireless Communication Research Center(AWCC), The University of Electro-Communications |
| Date | 2012-07-27 |
| Paper # | MW2012-46,OPE2012-39,EST2012-28,MWP2012-27 |
| Volume (vol) | vol.112 |
| Number (no) | 157 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |