| 摘要 |
PURPOSE: An H-slot flat micro strip antenna is provided to have a wide band, facilitate an impedance matching, reduce adverse effect of an electromagnetic wave on a human body, and improve emissivity. CONSTITUTION: A micro strip H-slot is formed in parallel to a side surface of a metal plate. A feed line supplies a predetermined power to the H-slot and inputs a receiving signal. A lateral line of the H-slot is shaped like a sawtooth and a length the H-slot is 1/4 of an electromagnetic wave length. A slot length is λ/4. By virtue of the electromagnetic coupling, wide band features and superior impedance matching are achievable, emissivity is excellent and a strong electric wave is emitted. The H-slot flat micro strip antenna is mountable on an inside of a terminal in place of an existing solid helical antenna. Further, the H-slot flat micro strip antenna is embedded on an upper end part within the terminal so as to minimize an adverse effect of an electromagnetic wave, maximize antenna efficiency and attain a small sized and light weighed antenna.
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