Name
Title | ||
|---|---|---|
High Directivity Coupler Suppressing Leak Coupling With Cancellation Circuit Of Wilkinson Divider |
Abstract | ||
|---|---|---|
A high directivity microstrip coupler suppressing leak coupling with a cancellation circuit of a Wilkinson divider is presented. The presented coupler utilizes a cancellation circuit between a coupling port and an isolation port of the conventional microstrip coupler to enhance the isolation. The cancellation circuit consists of the Wilkinson divider, the multistage attenuator, and the phase offset line. The frequency to enhance the isolation is controlled by the attenuators. As the directivity is improved without the modification of the conventional coupler, the cancellation circuit can be applied to the fabricated conventional couplers. The measured directivity of the presented 1/18 lambda coupler is improved from 4.8 dB to 43.0 dB at 2.6 GHz, compared with the conventional 1/4 lambda coupler with -20 dB coupling. Simultaneously, the 27.4% relative bandwidth with the 20 dB directivity is achieved. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1587/transele.E93.C.1032 | IEICE TRANSACTIONS ON ELECTRONICS |
Keywords | Field | DocType |
directional coupler, microstrip coupler, directivity, divider, isolation | Coupling,Leak,Directivity,Magic tee,Optics,Electronic engineering,Hybrid coupler,Engineering,Rat-race coupler,Wilkinson power divider,Power dividers and directional couplers | Journal |
Volume | Issue | ISSN |
E93C | 7 | 1745-1353 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Kazuhisa Yamauchi | 1 | 1 | 1.11 |
| A. Inoue | 2 | 36 | 8.36 |
| Moriyasu Miyazaki | 3 | 1 | 2.80 |