Power Detector Radio Frequency Multiplexer

• US 20090067351A1
• Filed: 09/07/2007
• Published: 03/12/2009
• Est. Priority Date: 09/07/2007
• Status: Abandoned Application

• Current Assignee: Infineon Technologies AG
• Original Assignee: Infineon Technologies AG
• Inventors: Tiebout, Marc, Wiesbauer, Andreas, Marsili, Stefano, Mertens, Koen, Derksen, Sven
• Application Number:
  US11/851,398
• Publication Number:
  US 20090067351A1
• Time in Patent Office: Days
• US Class Current: 370/277
• CPC Class Codes: H04B 17/13 of power amplifiers, e.g. gain or non-linearity
• CPC Class Codes: H04W 52/52 using AGC [Automatic Gain Control] circuits or amplifiers

Abstract

Implementations related to systems and devices that make use of a power detector multiplexer are presented herein.

Claims

1. A circuit arrangement, comprising:

a power detector; and

a multiplexer circuit coupled to the power detector, the multiplexer circuit including at least two switching sections, one of the switching sections to pass a signal generated based on a modulation scheme to the power detector and another of the switching sections to pass a signal to calibrate the power detector.

2. The circuit according to claim 1, wherein each of the at least two switching sections includes a switch that enables signals to pass to the power detector, the switch of each of the at least two switching sections to pass signals to the power detector when in a closed state.

3. The circuit according to claim 2, wherein the switch of each of the at least two switching sections prevents signals to pass to the power detector when in an open state.

4. The circuit according to claim 1, wherein each of the at least two switching sections includes a switch that enables signals to pass to ground, the switch of each of the at least two switching sections to pass signals to ground when in a closed state.

5. The circuit according to claim 4, wherein the switch of each of the at least two switching sections prevents signals to pass to ground when in an open state.

6. The circuit according to claim 1, wherein each of the at least two switching sections includes a switch that enables signals to pass to the power detector and another switch that enables signals to pass to ground, the switches of each of the at least two switching sections toggled oppositely when the multiplexer circuit is actively processing a signal.

7. The circuit according to claim 1, wherein each of the at least two switching sections includes two switches in parallel, one of the switches coupled to ground and another of the switches coupled to an input of the power detector.

8. The circuit according to claim 7, wherein each of the at least two switching sections includes a capacitor, each capacitor of the at least two switching sections coupled to the at least two switches of a respective one of the at least two switching sections.

9. A wireless system, comprising:

an integrated circuit having a multiplexer circuit, the multiplexer circuit including at least two switching sections, one of the switching sections to pass a signal generated based on a modulation scheme and another of the switching sections to pass a calibration signal.

10. The wireless system according to claim 9, wherein the multiplexer circuit of the integrated circuit is coupled to a single power detector.

11. The wireless system according to claim 10, wherein the calibration signal is to calibrate the single power detector.