Name
Abstract | ||
|---|---|---|
This brief presents, for the first time, the analysis and implementation of a dual-band coupled-line trans-directional (CL-TRD) coupler. It is realized by cascading three periodically capacitor loaded coupled line segments, which are equivalent to a symmetric stepped impedance coupled line with a 180° difference between the even- and odd-mode electrical lengths. Explicit design equations of the proposed coupler were derived using the equivalent approach and the even-odd mode decomposition analysis. For demonstration, a 3-dB CL-TRD coupler operating at 0.9/2.4 GHz was designed. Under the criterion of |
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| < −15 dB and |
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| < −15 dB, the measured relative bandwidths are 37.8% and 10%, respectively, for the lower and upper bands. While for amplitude imbalance < 1 dB, the relative bandwidths are 35.6% and 8.3%, relatively, with the output ports phase differences of ± 90 ± 5°. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1109/TCSII.2019.2918767 | IEEE Transactions on Circuits and Systems II: Express Briefs |
Keywords | Field | DocType |
Couplers,Dual band,Equivalent circuits,Bandwidth,Couplings,Capacitors | Electronic engineering,Optoelectronics,Mathematics,Multi-band device,Power dividers and directional couplers | Journal |
Volume | Issue | ISSN |
67 | 3 | 1549-7747 |
Citations | PageRank | References |
2 | 0.48 | 0 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hongmei Liu | 1 | 2 | 2.51 |
| Shaojun Fang | 2 | 5 | 3.60 |
| Zhongbao Wang | 3 | 2 | 4.54 |
| Shiqiang Fu | 4 | 2 | 1.50 |