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时间: 2020-1-9 17:40
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手機天線發展趨勢Dept.ofElectronics&CommunicationEngineeringHarbinInstituteofTechnologyHarbin150001,P.R.ChinaE-mail:qwu@hit.edu.cnTel.+864516413502移动通信终端天线设计(6)吴群教授,工学博士未来手机天线发展趋势Half-VolumedielectricresonatorantennaHelsinkiuniversityoftechnology,RadiolaboratoryInternalantennaelementsforfuturehandsetsSmallinternalwidebandantennaelementsKeyissues:bandwidthefficiencysizeStudiedelements:PIFA(shortedpatch)DRABandwidthenhancementwithcoplanarandstackedmulti-resonantstructuresCurrentemphasisisondualbandstructuresDualresonantstackedshortedpatchantennaAsleevebalunreducestheundesiredcurrentontheoutersurfaceoftheRFcableTheuseofquarter-wavecap-likesleeve(sleevebalun)onthefeedcablenearthehand……