| Presentation | 2010/10/21 Dual-Band Bandpass Filter Based On Stepped Impedance Resonators Ji-eun Lim, Min-hee Nam, Han-ol Choi, Jae-hyun Lee, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The need for multiband RF front-end in modern communication system is growing rapidly. For example, satellite system always uses a complex arrangement of frequency plans and consequently needs filters for each communication channel and it will be ideal to have a single filter module that does jobs of all those channel filters to reduce the size and payload of the system. Also, multiband satellite terminals are calling for small and mobile sets as opposite to traditional large ground station, and therefore demanding not only multiband filters, but also miniaturized ones that can be easily integrated with antennas. In this paper, we propose a two-port balanced dual-band bandpass filter based on stepped impedance resonators. The resonance frequency and the bandwidth of the first harmonic band can be controlled by using the impedance ratio of stepped impedance resonator and the coupled spacing between stepped impedance resonator and extra open-loop resonator, respectively. For a front-end application the four-port balanced dual-band bandpass filter was presented. In order to extensively utilize the advantages of the small-size and light-weight of that, it may be more useful if the four-port may be transformed into a two-port. The two-port bandpass filter which may be transformed from the four-port balanced bandpass filter by the balun is proposed. The two-port balanced dual-band bandpass filter which has the input/output baluns and the fundamental frequency at 2.5 GHz and the first harmonic frequency at 5.5 GHz is fabricated and measured. Good agreement between measured and simulated results was achieved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Dual-band Filter / Stepped Impedance Resonator (SIR) / Balanced filter / Balun |
| Paper # | SAT2010-70 |
| Date of Issue |
| Conference Information | |
| Committee | SAT |
|---|---|
| Conference Date | 2010/10/21(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 | Satellite Telecommunications (SAT) |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Dual-Band Bandpass Filter Based On Stepped Impedance Resonators |
| Sub Title (in English) | |
| Keyword(1) | Dual-band Filter |
| Keyword(2) | Stepped Impedance Resonator (SIR) |
| Keyword(3) | Balanced filter |
| Keyword(4) | Balun |
| 1st Author's Name | Ji-eun Lim |
| 1st Author's Affiliation | Department of Radio Science and Engineering, Chumgnam National University() |
| 2nd Author's Name | Min-hee Nam |
| 2nd Author's Affiliation | Department of Radio Science and Engineering, Chumgnam National University |
| 3rd Author's Name | Han-ol Choi |
| 3rd Author's Affiliation | Department of Radio Science and Engineering, Chumgnam National University |
| 4th Author's Name | Jae-hyun Lee |
| 4th Author's Affiliation | Department of Radio Science and Engineering, Chumgnam National University |
| Date | 2010/10/21 |
| Paper # | SAT2010-70 |
| Volume (vol) | vol.110 |
| Number (no) | 256 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |