Abstract: The invention relates to an antenna system that includes transmitter component (1, 2, 3, 4), a reception component (4, 3, 10, 11, 12), and an antenna (5) connected to the transmitter and reception components. According to the invention, the antenna (5) is arranged to connect to different connection points (6, 7, 8) of the transmitter (1, 2, 3, 4) or the reception component (4, 3, 10, 11, 12). The invention is also related to a method in connection with the antenna.

Abstract: An electronic device includes a rechargeable power source and a recharging connector arrangement arranged at least partly on an outer surface of the device and configured to connect the power source to a charging apparatus thereof. The recharging connector arrangement is configured to operate as a user interface of the device to control functions of the device.

Abstract: The invention relates to clock recovery in optical communication systems. Optical clock frequencies are recovered from a plurality of optical channels by using a single optical resonator. The optical resonator is matched with the carrier frequencies and the sideband frequencies of the data signals sent at different channels. The separation range of the optical resonator is selected such that the clock frequency of at least one data signal is substantially equal to the separation range of the optical resonator multiplied by an integer greater than or equal to two. The method according to the invention allows the use of different clock frequencies at different optical channels. Furthermore, the method provides considerable freedom to select the spectral positions of the optical channels.

Abstract: A connector and a contact wafer. The connector (1) comprises contacts one on top of another and in parallel and the wafer body (8) comprises at least one channel (9) which is arranged between contacts (4) arranged in parallel and extends to the lower surface of the wafer body (8).

Abstract: A connector and a contact wafer. The connector (1) comprises at least two wafers (7) and the contact arms (6) of at least two contacts (4) arranged in different wafers (7) is arranged in the same connector contact space (3). The connector wafer (7) is designed so as to allow simultaneous arrangement of the contact arm (6) of a contact (4) arranged in at least one other wafer (7) in the same connector (1) contact space (3).