Patent ID: 8620244

Claim:
An electrical component comprising: a diversity front-end circuit that is exclusively designed to transmit received signals, a carrier substrate, at least one chip arranged on the carrier substrate, wherein acoustic filters are implemented in the at least one chip, and a further front-end circuit that is not electrically connected to the diversity front-end circuit, wherein the diversity front-end circuit is capable of receiving signals in at least two frequency bands simultaneously, wherein the diversity front-end circuit comprises at least two receiving paths connected to a diversity antenna, wherein, in each receiving path, the received signals of a corresponding frequency band are forwarded, wherein at least one element of a matching network is arranged on or in the carrier substrate, wherein the carrier substrate comprises a plurality ceramic layers and a metallization layer between two ceramic layers, wherein at least one element of the matching network is implemented in the metallization layer, wherein separation of signals between different receiving paths of the diversity front-end circuit is achieved using entirely passive components and without any active semiconductor switching elements, wherein the further front-end circuit is designed to carry transmission and reception signals in at least those frequency bands for which the diversity front-end circuit is also designed, wherein the diversity front-end circuit includes a diode that is operated by a control voltage Vc, wherein the diode constitutes a DC path to ground when the diode is switched on, wherein the diode establishes a shunt branch connecting at least one of the receiving paths of the diversity front-end circuit to ground, wherein the diversity front-end circuit is capable of receiving incoming signals in at least three frequency bands simultaneously, wherein the diversity front-end circuit comprises an antenna path connected to the diversity antenna and a crossover network connected to the diversity antenna, wherein the antenna path is used to transmit the received signals in at least three different frequency bands, wherein the crossover network connects the antenna path to the at least three receiving paths designed for the at least three frequency bands, wherein each of the at least three receiving paths comprises an acoustic wave filter arranged within the receiving path, wherein each of the at least three receiving paths comprises, on an antenna side, a matching network arranged between the diversity antenna and the acoustic wave filter, and wherein the matching network provides impedance matching between the diversity antenna and the acoustic wave filter at a frequency in a passband of the acoustic wave filter.