Abstract: An antenna comprises two elongate antenna segments (740, 740?, 862, 940, 970, 1208/1212, 1300, 1320, 1322/1324, 1360, 1360?, 1520, 1520?, 1520?, 1523, 1523?, 1620, 1720, 1820, 1920) which extend from first ends (742, 742?, 864, 942, 972, 1322e, 1362, 1362?, 1522, 1522?, 1522?, 1622, 1922)/(744, 744?, 868, 944, 974, 1324e, 1364, 1364?, 1524, 1524?, 1524?, 1624, 1924) connected to the antenna coupling coil in opposite directions to second ends (744, 744?, 868, 944, 974, 1322c, 1366, 1366?, 1524, 1524?, 1524?, 1624, 1924)/(742, 742?, 864, 942, 972, 1324c, 1368, 1368?, 1522, 1522?, 1522?, 1622, 1922) at least partially around the inner surface of the tire.

Abstract: Method and apparatus for mounting a transponder module (400, 702, 951, 1000, 1020, 1751, 1752, 1852, 1852?, 1951, 1951a) and a separate antenna (1520, 1520?, 1520?, 1620, 1720, 1820, 1920) to an inner surface (1504, 1504?, 1504?, 1704, 1804) of a pneumatic tire (312, 650, 1204, 1350, 1350?, 1550, 1550?, 1550?), and for coupling the transponder module to the antenna by coupling coils which are included with the transponder module (450, 760, 953, 1004, 1024) and the antenna (750, 750?, 866, 938, 968, 1538, 1538?, 1538?, 1638, 1638?, 1738, 1738?, 1838, 1838?, 1938). The transponder module mounting methods generally allow it to be inserted, removed, or accessed for maintenance at any time during the tire's life cycle, and allow sensing access to the tire's inner atmosphere.