為了能夠滿(mǎn)足基站易于選址、優(yōu)質(zhì)快速的建站要求和易維護(hù)、低成本、高可靠的運(yùn)行要求，本文對(duì)以方艙來(lái)實(shí)現(xiàn)一體化結(jié)構(gòu)基站做出一番探討。從系統(tǒng)設(shè)計(jì)的觀點(diǎn)闡述了移動(dòng)通信高性能基站天線(xiàn)設(shè)計(jì)的幾個(gè)關(guān)鍵問(wèn)題，介紹了智能天線(xiàn)技術(shù)在基站中的應(yīng)用，并且用HFSS軟件仿真了一種新型的對(duì)稱(chēng)陣子天線(xiàn)，該天線(xiàn)駐波比小于2的帶寬可以...
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The standard that governs the design of avioniccomponents and systems, DO-254, is one of the mostpoorly understood but widely applicable standardsin...
We would like to welcome you as a user of the Allegro CX, a rugged, handheld fi eld PC for data collection. Developed with the input of da...
Logger iButton devices have gained a lot of popularity with researchers. Although free evaluation software is easy to use and welldocumented, the ch...
