| 摘要 |
An ISS relay for increasing the skirt property and the isolation characteristic is provided to process the operating frequency without using an up/down converter circuit. Duplexers(51, 53) comprise a transmitting end and a reception end. The duplexers emit RF signal through an antenna or receives the RF signal from the antenna. An LNA(Low Noise Amplifiers)(31, 41) amplify the radio frequency signal received from the reception end of duplexer. ISS- FMs(Interference Suppress System-Filter Modules) amplify the frequency of the pass band among the radio frequency signal outputted from LNA. The ISS-FMs the frequency of the stop band blocks. Compensation circuits compensate for the riffle generated in the ISS-FMs. Power amplifiers amplify the electricity of the radio frequency signal outputted from compensating circuits.
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