Methods and systems for controlling power for a power amplifier utilizing a leaky wave antenna (LWA) are disclosed and may include configuring one or more power amplifiers (PAs) in a wireless device at a desired output power level. The PAs may be coupled to feed points on the LWAs that may exhibit an input impedance corresponding to an output impedance of the PAs. RF signals may be transmitted utilizing the LWAs. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. The LWAs may be configured to transmit the RF signals in a desired direction. The LWAs may comprise microstrip or coplanar waveguides, wherein a cavity height of the LWAs is dependent on spacing between conductive lines in the waveguides. The input impedances of the feed points may be dependent on a position of the feed points in the cavities.