| 摘要 |
<p>There are provided a transmission and reception circuit and a transmission and reception method that can reduce the insertion loss of a circuit in a hybrid operation and are suitable for reducing the cost, size, and power consumption. An antenna switch (119) includes attenuation filters (201 to 203) for attenuating the frequency bands corresponding to a plurality of receiving systems, e.g., the frequency band of an 800-MHz band system, the frequency band of a 2-GHz band system, and GPS reception frequency components. Theses filters (201 to 203) are connected between a primary (main) antenna connection terminal (T204) and a first switch group (SWG201) through connection switches (204 to 206).</p> |
