https://scholars.lib.ntu.edu.tw/handle/123456789/373073
標題: | A Compact Outer-Fed Leaky-Wave Antenna Using Exponentially Tapered Slots for Broadside Circularly Polarized Radiation | 作者: | Lin, S. K. YI-CHENG LIN |
關鍵字: | Broadband; circular polarization; leaky-wave antennas; slot antennas; unidirectional patterns | 公開日期: | 2012 | 卷: | 60 | 期: | 6 | 起(迄)頁: | 2654-2661 | 來源出版物: | Ieee Transactions on Antennas and Propagation | 摘要: | A novel leaky-wave slot antenna for broadside circularly polarized (CP) radiation is presented. The antenna simply consists of a slotline for the feed, an exponentially tapered slot for the radiator, and a shaped end for the terminator. Separating the feed from the curved radiating slot makes the presented antenna unique in design and compact in size. The resulting antenna yields inherent broadband characteristics of leaky-wave antennas on the input impedance, axial ratio (AR), and radiation gain. Particularly, to solve the tilt-beam problem commonly seen in leak-wave antennas, we proposed an extended dual-slot design that successfully achieved the pattern stability over a wide bandwidth. An antenna module with a reflector for unidirectional pattern applications was also developed. The measured performances of the final prototype were found to exhibit 10-dB return loss bandwidth of 40%, 3-dB AR bandwidth of 53%, and half-power gain bandwidth of 59% with CP gain level about 8 dBic. The measured and simulated results were well consistent with each other. © 2012 IEEE. |
URI: | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000304909800006&KeyUID=WOS:000304909800006 http://scholars.lib.ntu.edu.tw/handle/123456789/373073 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84861854634&doi=10.1109%2fTAP.2012.2194639&partnerID=40&md5=62a3f4adafacda9aa2ce3ec848dcd7bd |
ISSN: | 0018926X | DOI: | 10.1109/tap.2012.2194639 | SDG/關鍵字: | Antenna modules; Axial ratio; Broadband; Broadband characteristics; Circularly polarized; Gain bandwidth; Input impedance; Leaky wave antennas; Leaky-wave; Pattern stability; Radiating slot; Radiation gain; Return loss bandwidth; Simulated results; Slotlines; Tapered slots; Unidirectional patterns; Wide bandwidth; Antenna arrays; Bandwidth; Circular polarization; Dipole antennas; Microwave antennas; Slot antennas; Directional patterns (antenna) |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。