Please use this identifier to cite or link to this item:
https://doi.org/10.1109/TMTT.2005.864105
DC Field | Value | |
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dc.title | Improved wide-band schiffman phase shifter | |
dc.contributor.author | Guo, Y.-X. | |
dc.contributor.author | Zhang, Z.-Y. | |
dc.contributor.author | Ong, L.C. | |
dc.date.accessioned | 2014-06-17T02:52:51Z | |
dc.date.available | 2014-06-17T02:52:51Z | |
dc.date.issued | 2006-03 | |
dc.identifier.citation | Guo, Y.-X., Zhang, Z.-Y., Ong, L.C. (2006-03). Improved wide-band schiffman phase shifter. IEEE Transactions on Microwave Theory and Techniques 54 (3) : 1196-1199. ScholarBank@NUS Repository. https://doi.org/10.1109/TMTT.2005.864105 | |
dc.identifier.issn | 00189480 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/56284 | |
dc.description.abstract | In this paper, one improved wide-band Schiffman phase shifter is presented by modifying the ground plane underneath the coupled lines. In this new design, with the ground plane under the coupled lines removed, the even-mode impedance will be increased substantially. Meanwhile, we propose that one additional isolated rectangular conductor is placed under the coupled lines to act as one capacitor so that the odd-mode impedance is decreased. The proposed new design was simulated by the full-wave electromagnetic software IE3D and validated by the measurement. Compared with the cascading microstrip multisection coupled-line configuration, our newly proposed planar one with a patterned ground plane is small in size and, meanwhile, has a good performance. As an example, one Schiffman phase shifter on a double-sided printed circuit board is designed, simulated, fabricated, and measured. The measured amplitude and phase imbalance between the two paths are within 0.5 dB and 5°, respectively, over the frequency band from 1.5 to 3.1 GHz, or around 70% bandwidth. The measured return loss is found to be better than -12 dB over the operating frequency band. © 2006 IEEE. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/TMTT.2005.864105 | |
dc.source | Scopus | |
dc.subject | Coupled lines | |
dc.subject | Patterned ground plane | |
dc.subject | Phase shifter | |
dc.subject | Shiffman phase shifter | |
dc.subject | Wide-band phase shifter | |
dc.type | Article | |
dc.contributor.department | ELECTRICAL & COMPUTER ENGINEERING | |
dc.description.doi | 10.1109/TMTT.2005.864105 | |
dc.description.sourcetitle | IEEE Transactions on Microwave Theory and Techniques | |
dc.description.volume | 54 | |
dc.description.issue | 3 | |
dc.description.page | 1196-1199 | |
dc.description.coden | IETMA | |
dc.identifier.isiut | 000236081500026 | |
Appears in Collections: | Staff Publications |
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