Microstrip Antenna Miniaturization Of Multiband Technology Research And Application

With the rapid development of various wireless communication technologies, theantenna design, as an important part of its product development, is facing increasingchallenges, especially the realization of multi-functional and wide bandwidth with moreand more limited design space. As a result, a variety of researches about smallmulti-band antenna and compact ultra-wideband antenna have drawn much attention.Besides, with kinds of wireless communication devices highly integrated and theemerging of the ultra-wideband communications recently, the band notchedultra-wideband antennas which can effectively solve the electromagnetic compatibilityproblems have become anther research hotspot.The first chapter described the research background and significance of theminiaturized multi-band microstrip antenna, the compact ultra-wideband microstripantenna and the compact band notched ultra-wideband antenna. And then we discussedand analyzed the specific applications of different miniaturization technologies withrelated examples.A simple summary of the current development of the multi-band microstripantenna was presented in the second chapter at first. And then, based on the analysis andstudy of those multi-band technologies, a novel miniaturized dual-band microstripmonopole antenna with DGS and a novel triple band CPW-fed slot antenna withrectangular strip short loaded were proposed latter.Considering the requirements of miniaturization, wide-band and easy fabrication,the third chapter design several compact ultra-wideband monopole antenna withdifferent shaped radiation patches. After that, three band notched ultra-widebandantenna based on these ultra-wideband monopole antenna were presented. That is: thedual band notched ultra-wideband planar monopole antenna with modified SRR, thenovel compact ultra-wideband monopole antenna with Bluetooth and triple notch bandsand the novel compact ultra-wideband antenna with four band-notches for UWB applications. Particularly, all the notch bands of these band notched ultra-widebandantenna are independently adjustable.