A wireless circuit to be connected to an antenna, said wireless circuit comprising: a variable matching section for changing, in accordance with a set value, an impedance between the antenna and the wireless circuit; matching adjusting means for adjusting, in accordance with a communication status, the set value of the variable matching section; and switching means (30, 50) for carrying out switching from a first to a second use frequency band of the wireless circuit, the switching means including a storage section and storing table information therein, in a case where the switching means (30, 50) carries out the switching from the first to the second use frequency band of the wireless circuit, the switching means obtaining a second set value of the variable matching section which second value is set after the switching from (i) a first set value of the variable matching section which first set value has been adjusted by the matching adjusting means before the switching, (ii) the first use frequency band from which the switching is carried out, and (iii) the second use frequency band to which the switching is carried out, by referring to table information as stored in advance prior to the switching in said storage section, and setting the second value to the variable matching section, and the table information being configured to deliver the second set value in response to receipt of the first frequency band, the second frequency band, and the first set value. a variable matching section for changing, in accordance with a set value, an impedance between the antenna and the wireless circuit; matching adjusting means for adjusting, in accordance with a communication status, the set value of the variable matching section; and switching means (30, 50) for carrying out switching from a first to a second use frequency band of the wireless circuit, the switching means including a storage section and storing table information therein, in a case where the switching means (30, 50) carries out the switching from the first to the second use frequency band of the wireless circuit, the switching means obtaining a second set value of the variable matching section which second value is set after the switching from (i) a first set value of the variable matching section which first set value has been adjusted by the matching adjusting means before the switching, (ii) the first use frequency band from which the switching is carried out, and (iii) the second use frequency band to which the switching is carried out, by referring to table information as stored in advance prior to the switching in said storage section, and setting the second value to the variable matching section, and (ii) the first use frequency band from which the switching is carried out, and (iii) the second use frequency band to which the switching is carried out, by referring to table information as stored in advance prior to the switching in said storage section, and setting the second value to the variable matching section, and the table information being configured to deliver the second set value in response to receipt of the first frequency band, the second frequency band, and the first set value.