Article: Compact dual-mode balun bandpass filter with improved upper stopband performance
| Title | Compact dual-mode balun bandpass filter with improved upper stopband performance |
|---|---|
| Authors | Gao, SS1 Sun, S1 2 |
| Keywords | Baluns Band-pass filters Resonators Compact dual-mode balun bandpass filter Electrical length |
| Issue Date | 2011 |
| Publisher | The Institution of Engineering and Technology. The Journal's web site is located at http://www.ieedl.org/EL |
| Citation | Electronics Letters, 2011, v. 47 n. 23, p. 1281-1283 [How to Cite?] DOI: http://dx.doi.org/10.1049/el.2011.2879 |
| Abstract | A compact dual-mode balun bandpass filter with improved upper stopband performance is proposed by loading a quasi-T shaped open stub on a square ring resonator. By stretching the length of the loaded open stub, one of the second-order degenerate modes moves down quickly and builds up a dual-mode passband together with one of the first-order degenerate modes. Owing to the long electrical length of the open stub, more phase oscillations between the input and output ports are introduced, thus generating one more transmission zero above the passband. Measured results confirm both a good in-band filtering balun and improved upper-stopband performance. © 2011 The Institution of Engineering and Technology. |
| ISSN | 0013-5194 2011 Impact Factor: 0.965 2011 SCImago Journal Rankings: 0.275 |
| DOI | http://dx.doi.org/10.1049/el.2011.2879 |
| dc.contributor.author | Gao, SS |
|---|---|
| dc.contributor.author | Sun, S |
| dc.date.accessioned | 2012-09-20T07:55:18Z |
| dc.date.available | 2012-09-20T07:55:18Z |
| dc.date.issued | 2011 |
| dc.description.abstract | A compact dual-mode balun bandpass filter with improved upper stopband performance is proposed by loading a quasi-T shaped open stub on a square ring resonator. By stretching the length of the loaded open stub, one of the second-order degenerate modes moves down quickly and builds up a dual-mode passband together with one of the first-order degenerate modes. Owing to the long electrical length of the open stub, more phase oscillations between the input and output ports are introduced, thus generating one more transmission zero above the passband. Measured results confirm both a good in-band filtering balun and improved upper-stopband performance. © 2011 The Institution of Engineering and Technology. |
| dc.description.nature | Link_to_subscribed_fulltext |
| dc.identifier.citation | Electronics Letters, 2011, v. 47 n. 23, p. 1281-1283 [How to Cite?] DOI: http://dx.doi.org/10.1049/el.2011.2879 |
| dc.identifier.doi | http://dx.doi.org/10.1049/el.2011.2879 |
| dc.identifier.epage | 1283 |
| dc.identifier.hkuros | 210393 |
| dc.identifier.issn | 0013-5194 2011 Impact Factor: 0.965 2011 SCImago Journal Rankings: 0.275 |
| dc.identifier.issue | 23 |
| dc.identifier.scopus | eid_2-s2.0-81255184666 |
| dc.identifier.spage | 1281 |
| dc.identifier.uri | http://hdl.handle.net/10722/164105 |
| dc.identifier.volume | 47 |
| dc.language | eng |
| dc.publisher | The Institution of Engineering and Technology. The Journal's web site is located at http://www.ieedl.org/EL |
| dc.publisher.place | United Kingdom |
| dc.relation.ispartof | Electronics Letters |
| dc.subject | Baluns |
| dc.subject | Band-pass filters |
| dc.subject | Resonators |
| dc.subject | Compact dual-mode balun bandpass filter |
| dc.subject | Electrical length |
| dc.title | Compact dual-mode balun bandpass filter with improved upper stopband performance |
| dc.type | Article |
Author Affiliations
- The University of Hong Kong
- University of Electronic Science and Technology of China