A Compact and Wideband Coupled-Line Coupler with High Coupling Level Using Shunt Periodic Stubs
| dc.contributor.author | Keshavarz, Rasool | |
| dc.contributor.author | Movahhedi, Masoud | |
| dc.coverage.issue | 1 | cs |
| dc.coverage.volume | 22 | cs |
| dc.date.accessioned | 2015-01-20T14:14:19Z | |
| dc.date.available | 2015-01-20T14:14:19Z | |
| dc.date.issued | 2013-04 | cs |
| dc.description.abstract | A wideband microstrip forward-wave coupled-line coupler with high coupling value is presented. Compared with the conventional edge-coupled microstrip forward-wave coupler, this symmetrical structure, consisting periodic shunt stubs between the two coupled-lines, achieves wider operating bandwidth and larger coupling level. To characterize this structure, the equivalent circuit model is established and verified by measurement and full-wave results. The designed and fabricated prototype is a 0-dB forward-wave coupler with 0.6 mm stub length. This coupler exhibits a coupled amplitude balance of ±2 dB, good matching (15dB) and at least 15dB isolation between adjacent ports over a wide bandwidth of 66% from 2 GHz to 4 GHz centered at 3 GHz. The coupled-line length and width of the proposed structure are approximately λg/2 and λg/13, respectively, which makes it more compact than the conventional forward coupled-line couplers. | en |
| dc.format | text | cs |
| dc.format.extent | 323-327 | cs |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Radioengineering. 2013, vol. 22, č. 1, s. 323-327. ISSN 1210-2512 | cs |
| dc.identifier.issn | 1210-2512 | |
| dc.identifier.uri | http://hdl.handle.net/11012/36854 | |
| dc.language.iso | en | cs |
| dc.publisher | Společnost pro radioelektronické inženýrství | cs |
| dc.relation.ispartof | Radioengineering | cs |
| dc.relation.uri | http://www.radioeng.cz/fulltexts/2013/13_01_0323_0327.pdf | cs |
| dc.rights | Creative Commons Attribution 3.0 Unported License | en |
| dc.rights.access | openAccess | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/3.0/ | en |
| dc.subject | Coupled-line couplers | en |
| dc.subject | periodic structures | en |
| dc.subject | forward-wave couplers | en |
| dc.subject | shunt stubs | en |
| dc.subject | wideband microwave devices. | en |
| dc.title | A Compact and Wideband Coupled-Line Coupler with High Coupling Level Using Shunt Periodic Stubs | en |
| dc.type.driver | article | en |
| dc.type.status | Peer-reviewed | en |
| dc.type.version | publishedVersion | en |
| eprints.affiliatedInstitution.faculty | Fakulta eletrotechniky a komunikačních technologií | cs |