| 摘要 |
PROBLEM TO BE SOLVED: To provide radio equipment where the number of the synthesis stages of a synthesizer is reduced and the synthesis loss of a transmission part is reduced by not using the synthesizer or using it at least in one stage with the transmission signal of plural carriers as a signal synthesized by a two wave synthesizer. SOLUTION: Two wave synthesizer 13-1 or 13-2 synthesizes the transmission frequency of four carriers at every two carriers and they are outputted through common units 25-1 and 25-2. Thus, the number of two wave synthesis times is one for the two carriers and therefore an insertion loss is reduced to about half. Namely, the loss can be set to 4.5 dB on the four carriers compared to the conventional loss of 9 dB. The insertion loss of a transmission filter contained in the common unit 25-1 or 25-2 can be realized to about 2 dB. Thus, the insertion loss against the four carriers can be reduced to about 6.5 dB (4.5 dB+2 dB=6.5 dB).
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