| 摘要 |
A common antenna processing apparatus is provided to improve the external appearance of a mobile terminal, reduce volume of the mobile terminal, and save the production cost of the mobile terminal by presenting a common antenna which can process various mobile service frequency bands. A common antenna processing part in a mobile terminal consists of a common antenna(202) and a band extraction part. The common antenna(202) is composed of a single antenna element which can perform signal transmission and reception at various frequency bands, such as CDMA, PCS, GSM, and DCS signals. The band extraction part is composed of an LPF(Low Pass Filter)(306), a BPF(Band Pass Filter)(304), and an HPF(High Pass Filter)(302). The filters(302-306) are arranged at specific intervals of length of the common antenna(302), respectively in order to pass and process specific frequency bands.
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