Abstract:
Examples provide a wideband filter structure and apparatus, a radio transceiver, a mobile terminal, and a method for filtering a radio signal. The wideband filter structure (10) for a radio signal comprises a combination of at least one acoustic resonator (12) and at least one analog resonator (14). The acoustic resonator (12) is coupled to the analog resonator (14). The wideband filter structure (10) comprises a further component (16), which is coupled to the combination of the acoustic resonator (12) and the analog resonator (14).
Abstract:
A communication matching network for multi-harmonic suppression includes a communication circuit configured to provide a signal. The communication matching network further includes a matching circuit configured to receive the signal from the communication circuit and suppress one or more harmonics of the received signal to generate a filtered signal, wherein the matching circuit includes a transformer comprising a first winding and a second winding, wherein the first winding includes a first inductance and the second winding includes a second inductance and wherein the matching network includes a harmonic trap including a third inductance such that the third inductance is located inside or within a physical layout of the first winding and/or the second winding. The communication matching network further includes a receiver circuit configured to receive the filtered signal from the matching circuit for further processing.
Abstract:
An apparatus for reducing a magnetic coupling between a first electronic circuit and a second electronic circuit is provided. The apparatus includes a conductor loop enclosing the first electronic circuit or the second electronic circuit, and a tuning element coupled to the conductor loop. The conductor loop and the tuning element form a resonant circuit, wherein the tuning element is configured to adjust a resonance frequency of the resonant circuit to a frequency related to a frequency of a signal processed by the second electronic circuit.
Abstract:
A communication matching network for multi-harmonic suppression includes a communication circuit configured to provide a signal. The communication matching network further includes a matching circuit configured to receive the signal from the communication circuit and suppress one or more harmonics of the received signal to generate a filtered signal, wherein the matching circuit includes a transformer comprising a first winding and a second winding, wherein the first winding includes a first inductance and the second winding includes a second inductance and wherein the matching network includes a harmonic trap including a third inductance such that the third inductance is located inside or within a physical layout of the first winding and/or the second winding. The communication matching network further includes a receiver circuit configured to receive the filtered signal from the matching circuit for further processing.
Abstract:
A digital-to-analog converter circuit including a plurality of digital-to-analog converter cells is provided. A first digital-to-analog converter cell of the plurality of digital-to-analog converter cells includes a cell control module configured to provide alternatingly a first voltage and a second voltage to a first electrode of a capacitive element of the first digital-to-analog converter cell based on a digital input signal during a predefined time interval. A second digital-to-analog converter cell of the plurality of digital-to-analog converter cells includes a cell control module configured to provide a third voltage to a first electrode of a capacitive element of the second digital-to-analog converter cell during the predefined time interval. The first voltage is higher than an upper threshold voltage corresponding to a first digital threshold level of the digital input signal and the second voltage is lower than a lower threshold voltage corresponding to a second digital threshold level of the digital input signal. The third voltage is constantly between the upper threshold voltage and the lower threshold voltage.
Abstract:
Examples provide a wideband filter structure and apparatus, a radio transceiver, a mobile terminal, and a method for filtering a radio signal. The wideband filter structure (10) for a radio signal comprises a combination of at least one acoustic resonator (12) and at least one analog resonator (14). The acoustic resonator (12) is coupled to the analog resonator (14). The wideband filter structure (10) comprises a further component (16), which is coupled to the combination of the acoustic resonator (12) and the analog resonator (14).
Abstract:
An apparatus for reducing a magnetic coupling between a first electronic circuit and a second electronic circuit is provided. The apparatus includes a conductor loop enclosing the first electronic circuit or the second electronic circuit, and a tuning element coupled to the conductor loop. The conductor loop and the tuning element form a resonant circuit, wherein the tuning element is configured to adjust a resonance frequency of the resonant circuit to a frequency related to a frequency of a signal processed by the second electronic circuit.
Abstract:
A communication matching network for multi-harmonic suppression includes a communication circuit configured to provide a signal. The communication matching network further includes a matching circuit configured to receive the signal from the communication circuit and suppress one or more harmonics of the received signal to generate a filtered signal, wherein the matching circuit includes a transformer comprising a first winding and a second winding, wherein the first winding includes a first inductance and the second winding includes a second inductance and wherein the matching network includes a harmonic trap including a third inductance such that the third inductance is located inside or within a physical layout of the first winding and/or the second winding. The communication matching network further includes a receiver circuit configured to receive the filtered signal from the matching circuit for further processing.
Abstract:
A digital-to-analog converter circuit including a plurality of digital-to-analog converter cells is provided. A first digital-to-analog converter cell of the plurality of digital-to-analog converter cells includes a cell control module configured to provide alternatingly a first voltage and a second voltage to a first electrode of a capacitive element of the first digital-to-analog converter cell based on a digital input signal during a predefined time interval. A second digital-to-analog converter cell of the plurality of digital-to-analog converter cells includes a cell control module configured to provide a third voltage to a first electrode of a capacitive element of the second digital-to-analog converter cell during the predefined time interval. The first voltage is higher than an upper threshold voltage corresponding to a first digital threshold level of the digital input signal and the second voltage is lower than a lower threshold voltage corresponding to a second digital threshold level of the digital input signal. The third voltage is constantly between the upper threshold voltage and the lower threshold voltage.