Abstract: An active dual-band antenna arrangement (100), comprising a plurality of antenna elements (4), each with a transceiver connected thereto, wherein two antenna arrays (1, 2) are provided for the two frequency bands (B3, B7), wherein a first antenna array (1) processes the transmit band of the first frequency band (B3) and the receive frequency band of the second frequency band (B7), and wherein a second antenna array (2) processes the transmit frequency band of the second frequency band (B7) and the receive frequency band of the first frequency band (B3).

Abstract: A dual polarized antenna with at least one dual polarized radiator device comprises a reflector (3) and longitudinal or transverse webs (9, 11) provided at least on its longitudinal side and/or on its transverse side. The improvement is distinguished by the following features: at least one longitudinal web (9) and/or at least two longitudinal webs (9) provided with respect to the radiator device (1, 1?) located in between and/or at least one transverse web (11) and/or at least two transverse webs (11) provided with respect to the radiator device (1, 1?) located in between are positionally changeable directly or at least indirectly by pivoting and/or bending and/or deforming and curving.

Abstract: An improved antenna array includes at least two vertically running gaps. There are overall at least two and preferably at least three radiators or radiator groups offset to one another in the vertical direction in one gap and preferably in all gaps. In at least one gap, the arrangement is such that the radiators or radiator groups in this at least one gap except for at least one radiator or at least one radiator group are jointly supplied. This at least one radiator or at least one radiator group is supplied jointly with the radiators or radiator groups of an adjacent gap.

Abstract: An improved antenna arrangement is distinguished by the following features: at least two antenna element systems are provided and each has at least one antenna element, which are arranged offset with respect to one another, at least in the horizontal direction, the at least two antenna element systems transmit and receive at least in one common polarization plane, a network is provided, via which the at least two antenna element systems can be supplied with a signal (Ain1, Ain2) with an intensity or amplitude which can be set differently or which can be adjusted relative to one another and preferably with a different phase angle.

Abstract: An improved radio-frequency or network connection including a basic module having two or more basic signal coupling surfaces, and a network module having two or more network signal coupling surfaces. The basic module has a basic ground coupling surface, and the network module has a network ground coupling surface. In the operating state, the basic ground coupling surface is capacitively RF coupled to the network ground coupling surface, and is aligned parallel thereto.