Receiving device, particularly data collector in data transmission system, has two elongated antennas for receiving radio signals of pre-determined wavelength, where antennas are spaced apart by odd multiple of quarter of wavelength

摘要

The receiving device (1) has two internal, particularly elongated antennas (6a,6b,7a,7b) for receiving radio signals of a pre-determined wavelength. Two identically oriented antennas of a pair of antennas (6) have a space lying between one eighth and three eighths of the wavelength. The antennas are essentially spaced apart by an odd multiple of a quarter of the wavelength. An independent claim is also included for a data transmission system.