| 摘要 |
PURPOSE: A 450MHz folded dipole antenna is provided to transmit and receive signals to/from a CDMA 450 system and to receive a frequency between 450-470MHz. CONSTITUTION: A 450MHz folded dipole antenna(100) comprises a printed circuit board(101) having a folded dipole, a coaxial cable(102), plastic holders(103), and a base plate(104). The printed circuit board is vertically loaded on the base plate through the plastic holders. One end of the coaxial cable is soldered in the printed circuit board, and the coaxial cable is extended to the center of the base plate.
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