hf antenna 中文意思是什麼
hf antenna
解釋
高頻天線-
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 -
Gps hf antenna
Gps高頻天線 -
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 。 -
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 。 -
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。 -
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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