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dc.contributor.authorWang, CJen_US
dc.contributor.authorWu, JJen_US
dc.contributor.authorJou, CFen_US
dc.date.accessioned2019-04-02T05:59:28Z-
dc.date.available2019-04-02T05:59:28Z-
dc.date.issued1998-02-01en_US
dc.identifier.issn0195-9271en_US
dc.identifier.urihttp://dx.doi.org/10.1023/A:1022531910444en_US
dc.identifier.urihttp://hdl.handle.net/11536/149915-
dc.description.abstractX-band active beam-scanning leaky-wave antenna arrays, including 1 X 1, 1 X 2 and 1 X 4 prototypes, have been demonstrated. These antennas integrated one or several microstrip leaky-wave antenna elements with a single varactor-tuned HEMT VCO as an active source. Measured results on experimental antennas indicate that the beam scanning angle of the 1 X 1 antenna close to 40(0) can be achieved and the scanning range of 1 X 2 and 1 X 4 antenna arrays are both close to 32(0), Furthermore, reflected wave due to the open end of each leaky-wave antenna element has been suppressed by the symmetric configuration of this antenna array and the antenna efficiency increases. When comparing with the measured radiation pattern of the single element antenna, we found that the 1 X 2 and 1 X 4 antenna arrays can effectively suppress the reflected power by more than 5.5 dB and 10.5 dB, respectively, at 10.2GHz. The power gain are more than 2 dB and 3.16 dB higher than the single element antenna with a measured EIRP of 18.67 dBm.en_US
dc.language.isoen_USen_US
dc.subjectbeam-scanningen_US
dc.subjectthe leaky-wave antenna arraysen_US
dc.subjectthe reflected waveen_US
dc.subjectthe first higher order modeen_US
dc.subjectphase-shifterlessen_US
dc.titleActive frequency-tune beam-scanning leaky-wave antenna arraysen_US
dc.typeArticleen_US
dc.identifier.doi10.1023/A:1022531910444en_US
dc.identifier.journalINTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVESen_US
dc.citation.volume19en_US
dc.citation.spage349en_US
dc.citation.epage364en_US
dc.contributor.department電信工程研究所zh_TW
dc.contributor.departmentInstitute of Communications Engineeringen_US
dc.identifier.wosnumberWOS:000072114200011en_US
dc.citation.woscount0en_US
Appears in Collections:Articles