Method and system for a single-chip FM tuning system for transmit and receive antennas

Abstract

Aspects of a method and system for a single-chip FM tuning system for transmit and receive antennas may include in a frequency-modulation (FM) radio system comprising an integrated FM radio transmitter and FM radio receiver: receiving via a receive antenna for the FM radio system a radio-frequency (RF) signal transmitted from a transmit antenna of the radio transmitter. A frequency response of said receive antenna and/or a frequency response of said transmit antenna may be adjusted based on said received RF signal. The frequency response of the receive antenna and/or the transmit antenna may be adjusted dynamically, autonomously, sequentially and/or simultaneously. The receive antenna and/or the transmit antenna may be adjusted via a programmable filter, which may comprise inductive and capacitive components. The programmable filter may comprise a programmable array of inductors and/or a programmable array of capacitors.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS / INCORPORATION BY REFERENCE[0001]This application makes reference to, claims priority to, and claims the benefit of U.S. Provisional Application Ser. No. 60 / 895,665, filed on Mar. 19, 2007.[0002]The above referenced application is hereby incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0003]Certain embodiments of the invention relate to signal processing for communication systems. More specifically, certain embodiments of the invention relate to a method and system for a single-chip FM tuning system for transmit and receive antennas.BACKGROUND OF THE INVENTION[0004]Communication receiver systems that rely on receiving radio frequency signals are dependent on certain characteristics of the antenna used, in order to ensure correct operation. One such parameter, for example, may be the antenna impedance. If the impedance between the receiver and the antenna is not matched, the feed line may generate reflections at such unmat...

AI Technical Summary

Benefits of technology

[0008]A method and / or system for a single-chip FM tuning system for transmit and receive antennas, substantially as shown in and / or described in connection with at least one of the figures, as set forth more completely in the claims.

Problems solved by technology

This may generate so-called standing waves and reduces the effective power transfer from the antenna to the receiving device.

In particular for small antennas and / or antennas that may be operated in physically constrained spaces, small changes in the operating environment may impact the antenna characteristics.

In addition, due to the close proximity of a PCB antenna with other circuitry, there may be some electromagnetic coupling that may affect the antenna performance.

Also, changes in the operating environment, for example temperature, may affect the circuit-antenna matching.

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