Abstract: Methods for directional coupler termination impedance control are provided. In one embodiment, a method for termination impedance selection of a directional coupler in a power amplifier module is provided. The method includes determining at least one of a power mode or a frequency band of operation of the power amplifier module. The method further includes selecting a termination impedance of the directional coupler based on the determination using at least one switch.

Abstract: Methods for directional coupler termination impedance control are provided. In one embodiment, a method for termination impedance selection of a directional coupler in a power amplifier module is provided. The method includes determining at least one of a power mode or a frequency band of operation of the power amplifier module. The method further includes selecting a termination impedance of the directional coupler based on the determination using at least one switch.

Abstract: Apparatuses and methods for directional coupling are disclosed. In one embodiment, an apparatus includes a directional coupler, a termination impedance, a switch, and a control block. The directional coupler includes a power input terminal, a power output terminal, a couple terminal and a terminate terminal. The power input terminal can receive a radio frequency signal from a power amplifier, and the power output terminal can be electrically connected to a load. The switch has an ON state and an OFF state, and includes an input electrically connected to the terminate terminal and an output electrically connected to the termination impedance. The switch is configured to provide a relatively low impedance path between the input and the output when in the ON state and to provide a relatively high impedance path between the input and the output when in the OFF state. The control block can set the state of the switch.

Abstract: Apparatuses and methods for directional coupling are disclosed. In one embodiment, an apparatus includes a directional coupler, a termination impedance, a switch, and a control block. The directional coupler includes a power input terminal, a power output terminal, a couple terminal and a terminate terminal. The power input terminal can receive a radio frequency signal from a power amplifier, and the power output terminal can be electrically connected to a load. The switch has an ON state and an OFF state, and includes an input electrically connected to the terminate terminal and an output electrically connected to the termination impedance. The switch is configured to provide a relatively low impedance path between the input and the output when in the ON state and to provide a relatively high impedance path between the input and the output when in the OFF state. The control block can set the state of the switch.

Abstract: A data communication receiver (100) for receiving a radio frequency (RF) signal includes receiving circuitry (410) for receiving the RF signal and recovering a selective call message therefrom and for generating an activation signal in response to recovery of the selective call message. The data communication receiver (100) further includes a transducer/switch component (300) coupled to the receiving circuitry (410) comprising a transducer (230) having leads (305, 310) formed thereon for providing the activation signal to drive the transducer (230), wherein a first of the leads (310) has contiguously formed therefrom a switch element (105) for selectively contacting the receiving circuitry (410).

Abstract: In a heterodyne receiver having more than one selectable receive frequency and having at least one intermediate frequency circuit (102) capable of operation on at least two intermediate frequencies, a method for selecting one of the at least two intermediate frequencies is shown. The selection method includes selecting (402) one of the more than one selectable receive frequency, and then selecting (408, 410, 504, 506, 510, 512) at least one of the at least two intermediate frequencies for each of the at least one intermediate frequency circuit in response to the selected receive frequency. The selection of the intermediate frequency for each of the at least one intermediate frequency circuit is made such that the selected intermediate frequency does not cause the generation of one or more undesirable spurious frequencies as a result of mixing the selected receive frequency and the selected intermediate frequency.