hf antenna 中文意思是什麼

hf antenna 解釋
高頻天線
  • hf : Hf = 【化學】 hafnium.
  • antenna : n. (pl. -nae , antennas)1. 【動物;動物學】觸角。2. 【無線電】天線〈英國常用 aerial〉。
  1. Design of a novel automatic antenna tuning coupler in hf communication

    一種新的短波自適應天線調諧器的設計
  2. Gps hf antenna

    Gps高頻天線
  3. Bst - ant - s series hf long range antenna can read or write the iso iec15693 rfid tag matching with the hf long range device. its range can up to 65cm

    Bst - ant - s系列高頻遠距離天線,可配合高頻遠距離讀寫設備對符合iso iec15693標準的電子標簽進行數據的讀寫操作,讀卡距離可達65cm 。
  4. Bst - ant - d01 series hf long range desk antenna can read or write the iso iec15693 rfid tag matching with the hf long range device. its range can up to 35cm

    Bst - ant - d01高頻遠距離桌面型天線,可配合高頻遠距離讀寫設備對符合iso iec15693標準的電子標簽進行數據的讀寫操作,讀卡距離可達35cm 。
  5. In order to hold the performance of the antenna array of hf radar the length of antenna array is also very long

    高頻超視距雷達工作在短波波段,為了保持一定的天線陣性能,天線陣尺寸通常也較大。
  6. However, in hf band, the band of the antennas is narrow, and the input impedance of monopole antenna with limited height undergoes rapid variation with frequency

    但是,在hf頻段,有限高無加載單極子天線帶寬相對較窄,輸入阻抗隨頻率劇烈變化,難于和50的同軸饋線匹配。
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