Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Cham Kiong Queck"'
Autor:
Cham Kiong Queck1 ckq@ieee.org., Davis, Lionel E.1
Publikováno v:
International Journal of RF & Microwave Computer-Aided Engineering. May2003, Vol. 13 Issue 3, p246-255. 10p. 1 Black and White Photograph, 4 Diagrams, 8 Graphs.
Autor:
Lionel E. Davis, Cham Kiong Queck
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 52:1369-1374
A novel folding technique for a longitudinally magnetized ferrite-coupled-line (FCL) section is reported in this paper. The results from Ansoft HFSS simulations of a single-folded structure are presented for a 17-GHz folded stripline FCL section and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79f098bff4fced5b5a06afe8e5d16b38
https://doi.org/10.1109/tmtt.2004.827000
https://doi.org/10.1109/tmtt.2004.827000
Autor:
Cham Kiong Queck, Lionel E. Davis
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 52:625-632
The broad-band characteristics of a stripline ferrite coupled line (FCL) section are verified through measurements, for the first time. Subsequent simulations and measurements on a 17-GHz three-port circulator employing a stripline FCL section shows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56ba0a2213afd482d8d51da68c9ac8ad
https://doi.org/10.1109/tmtt.2003.822024
https://doi.org/10.1109/tmtt.2003.822024
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering. 13:173-179
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea3cf0ab9284a81ae424ee3347c5fc69
https://doi.org/10.1002/mmce.10075
https://doi.org/10.1002/mmce.10075
Autor:
Cham Kiong Queck, Lionel E. Davis
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 50:2910-2917
Measurements on an 11-GHz four-port microstrip ferrite-coupled-line (FCL) circulator, employing a broad-band hybrid coupler and an improved air bridge, confirm that only a weak biasing field of 3-4 kA/m (35-50 Oe) is required. By cascading the S-matr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d09bece4273c5ea5aa193c23d30c9ca7
https://doi.org/10.1109/tmtt.2002.805184
https://doi.org/10.1109/tmtt.2002.805184
Autor:
Cham Kiong Queck, Lionel E. Davis
Publikováno v:
2006 European Microwave Conference.
A new butterfly-shape folding technique for ferrite coupled line (FCL) is proposed as an alternative to that reported in Queck and Davis (2004). The advantage of this new folding technique is easier fabrication for the folded FCL and high isolation b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28be9101c069b4ec3dc29fc617c8e593
https://doi.org/10.1109/eumc.2006.281160
https://doi.org/10.1109/eumc.2006.281160
Autor:
Cham Kiong Queck, Lionel E. Davis
Publikováno v:
2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).
For the first time, the bandwidth and the losses of a 4-port Ferrite Coupled Line (FCL) circulator are analysed and reported. A broadband hybrid coupler with an improved air-bridge has been designed for the circulator and the performance of a 4-port
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12ca562430ff63b38e347757bba06c5e
https://doi.org/10.1109/mwsym.2002.1012134
https://doi.org/10.1109/mwsym.2002.1012134
Autor:
Cham Kiong Queck, Lionel E. Davis
Publikováno v:
31st European Microwave Conference, 2001.
A 4-port microstrip Ferrite Coupled-Line (FCL) circulator is designed at 11.4 GHz by cascading a longitudinally-magnetized FCL structure with a 180° hybrid coupler. A broadband 180° hybrid ring with a bandwidth of approximately 7 GHz is realised by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96db17cbf087efe85bcf45f69022b746
https://doi.org/10.1109/euma.2001.339072
https://doi.org/10.1109/euma.2001.339072
Autor:
Cham Kiong Queck1 ckq@ieee.org, David, Lionel E. l.davis@umist.ac.uk
Publikováno v:
IEEE Transactions on Microwave Theory & Techniques. May2004, Vol. 52 Issue 5, p1369-1374. 6p.
Autor:
Cham Kiong Queck, Davis, L.E.
Publikováno v:
2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278); 2002, p1475-1478, 4p