AUTOMOBILE UNITY ANTENNA

摘要

PURPOSE: An integrated antenna for a vehicle is provided to improve an antenna property by installing the integrated antenna of one case in the vehicle. CONSTITUTION: A multi-band antenna(1) changes a received signal into an electric control signal. A receiving circuit(9) includes a radio receiving module, a DMB receiving module, and an RKE(Remote Keyless Entry) receiving module. A ground plate(11) grounds a receiving circuit unit(9). A case(13) protects the component exposed to the outside and has a shark finned shape. A low pass filter filters a low frequency signal of 300 KHz to 2 MHz and removes a high frequency signal. A band pass filter filters FM frequency of 70 MHz to 120 MHz among the received electronic waves. A low noise amplifier amplifies the DMB signal of 174 MHz to 216 MHz.