l-antenna 中文意思是什麼
l-antenna
解釋
型天線-
This paper discusses three slot - coupled microstrip antennas with high dielectric constants based on gps ( global positioning system ) receiving antenna. they are separately with slots of oblique, t shape, and l shape
本文以全球定位系統( globalpositioningsystem ,簡稱gps )接收機微帶天線單元為研究對象,探討了三種高介電常數縫隙加載正方形貼片的天線特性,分別是斜縫, t形縫和l形縫。 -
The comparison between the results of calculation and measurement shows that the two results are in good agreement for the broad band antenna in the l band and the waveguide - coax converter of bj48 type used as antenna in the c band, with a difference of less than 0. 7db, and that the two results also agrees well in the x band for the waveguide - coax converter of bj100 type used as antenna, with an error close to 1db only at few points in the given frequency range
比對結果表明: l波段(加脊天線) 、 c波段( bj48型波導同軸轉換作為接收喇叭)的模擬結果與實測結果符合得較好,誤差小於0 . 7db ;在帶內, x波段( bj100型波導同軸轉換作為接收喇叭)的模擬結果與實測結果比較一致,只在個別頻率點處誤差近1db 。 -
L - 206 mounting bracket 1201a vff aluminum alloy antenna
Sm - 2全不銹鋼天線固定架 -
In prototype system, a l - shaped non - uniform linear array with 5 elements is utilized to receive spatial signal with carrier frequency among 2 - 18ghz. the entire frequency band is decomposed into 1ghz sub - bands and then is mixed to 1ghz base band. the base band output of each antenna is sent through a synchronous 250mhz undersampling channels
在本實驗系統中,我們設計了一個5陣元的l型非均勻陣列天線,將的頻段劃分成的子頻段,然後將每個子頻段混頻到的處理基帶后再進行的同步欠采樣。 -
It has large ratio of deploying / stowed volume. it may be used as sar antenna for small satellite or as other communication antenna of s or l band. the structural system configuration and key components design are described
它具有展縮比大,重量輕和頻段寬等特點,可用於小衛星合成孔徑雷達天線和其它s 、 l頻段星載通訊天線。
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