CIRCUIT INTEGRATING A TUNABLE ANTENNA WITH A STANDING WAVE RATE CORRECTION
First Claim
1. An integrated electronic radio-frequency transceiver circuit, comprising:
- at least one terminal intended to receive a signal to be transmitted or to transmit a received signal;
at least one planar antenna with a settable resonance frequency;
at least one bidirectional coupler having a primary line interposed between said terminal and the antenna and having the respective terminals of a secondary line providing data representative of the transmitted power and of the power reflected on the primary line side;
at least one detector of the transmitted power and of the reflected power; and
a circuit for selecting the resonance frequency of the antenna according to the ratio between the transmitted power and the reflected power.
1 Assignment
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Accused Products
Abstract
An integrated electronic radio-frequency transceiver circuit, including: at least one terminal intended to receive a signal to be transmitted or to transmit a received signal; at least one planar antenna, with a settable resonance frequency; at least one bidirectional coupler having a primary line interposed between the terminal and the antenna and having the respective terminals of a secondary line providing data representative of the transmitted power and of the power reflected on the primary line side; at least one detector of the transmitted power and of the reflected power; and a circuit for selecting the resonance frequency of the antenna according to the ratio between the transmitted power and the reflected power.
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Citations
6 Claims
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1. An integrated electronic radio-frequency transceiver circuit, comprising:
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at least one terminal intended to receive a signal to be transmitted or to transmit a received signal; at least one planar antenna with a settable resonance frequency; at least one bidirectional coupler having a primary line interposed between said terminal and the antenna and having the respective terminals of a secondary line providing data representative of the transmitted power and of the power reflected on the primary line side; at least one detector of the transmitted power and of the reflected power; and a circuit for selecting the resonance frequency of the antenna according to the ratio between the transmitted power and the reflected power. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification