Method and system for dynamic control of output power of a leaky wave antenna

摘要

Methods and systems for dynamic control of output power of a leaky wave antenna (LWA) are disclosed and may include configuring one or more LWAs in a wireless device to transmit RF signals at a desired frequency. The LWAs may be integrated in support structures, including an integrated circuit, an integrated circuit package, and/or a printed circuit board. Impedances that are coupled to the LWAs and to a power amplifier enabled to amplify the RF signals may be dynamically configured. A resonant frequency of the LWAs may be tuned, which may be configured to transmit the RF signals at a desired angle from a surface of the support structure. The LWAs may include microstrip or coplanar waveguides where a cavity height of the LWAs may be configured by controlling spacing between conductive lines in the waveguides. The impedances may include capacitor arrays and/or inductors in the support structures.

主权项

1. A method for communication by a wireless device including at least one leaky wave antenna integrated in a support structure and including a resonant cavity formed by a first planar reflective surface and a second planar reflective surface having a reflectivity lower than the first planar reflective surface, the method comprising:
causing the at least one leaky wave antenna to transmit an RF signal at a desired frequency by selecting one feed point from a plurality of feed points of the at least one leaky wave antenna, each of the plurality of feed points being disposed within the resonant cavity at a different distance from the first planar reflective surface to set a different impedance, the selected one feed point determining an impedance of the at least one leaky wave antenna; and dynamically adjusting one or more impedances coupled to the leaky wave antenna and to a power amplifier that amplifies said RF signal, by selecting individually addressable capacitor arrays and switches that bypass inductors to match the impedance of the at least one leaky wave antenna.