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A Novel Synthetization Approach for Multi Coupled Line Section Impedance Transformers in Wideband Applications
| Content Provider | MDPI |
|---|---|
| Author | Zhang, Nan Wang, Xiaolong Bao, Chunxi Wu, Bin Chen, Chun-Ping Ma, Zhewang Lu, Geyu |
| Copyright Year | 2022 |
| Description | In this paper, a novel synthetization approach is proposed for filter-integrated wideband impedance transformers (ITs). The original topology consists of N cascaded coupled line sections (CLSs) with 2N characteristic impedance parameters. By analyzing these characteristic impedances, a Chebyshev response can be derived to consume N + 2 design conditions. To optimize the left N − 2 variable parameters, CLSs were newly substituted by transmission lines (TLs) to consume the remaining variable parameters and simplify the circuit topology. Therefore, there are totally 2N − N − 2 substituting possibilities. To verify the proposed approach, 25 cases are listed under the condition of N = 5, and 7 selected cases are compared and discussed in detail. Finally, a 75–50 Ω IT with 100% fractional bandwidth and 20 dB bandpass return loss (RL) is designed and fabricated. The measured results meet the circuit simulation and the EM simulation accurately. |
| Starting Page | 875 |
| e-ISSN | 20763417 |
| DOI | 10.3390/app12020875 |
| Journal | Applied Sciences |
| Issue Number | 2 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-01-15 |
| Access Restriction | Open |
| Subject Keyword | Applied Sciences Industrial Engineering Chebyshev Response Coupled Line Section (cls) Transmission Line (tl) Wideband Impedance Transformer |
| Content Type | Text |
| Resource Type | Article |
