PCT No. PCT/SE96/01015 Sec. 371 Date Jun. 15, 1998 Sec. 102(e) Date Jun. 15, 1998 PCT Filed Aug. 15, 1996 PCT Pub. No. WO97/07414 PCT Pub. Date Feb. 27, 1997A transponder for, for example, domestic animals can receive high frequency energy and transmit information of an antenna (Lx, Ly, Lz) and has a storage capacitor (C5) for storing received energy, which is used for transmitting on the antenna. In order to make the antenna less sensitive to the geometric direction of the received high frequency energy, it has a plurality of antenna coils (Lx, Ly, Lz), that are arranged in an angle to each other, e.g. perpendicularly to each other. Monitoring circuits (LDx, LDy, LDz, 1) can detect the energy received on each coil and compare the detected values to each other and can, for issuing information, use that coil on which the largest energy has been received. Thereby, the transmission can be made in a direction which is considerably more optimal than a direction which otherwise would be obtained in a more random fa
