MEMS Antenna Device with Angularly Arranged Membranes

The patent changes the physical state of the tuning element from liquid-crystal molecules (fluid phase) to microelectromechanical structures (solid phase with movable membranes). The membranes can be positioned between capacitor plates to change capacitance values, achieving dielectric coefficient adjustment through mechanical displacement rather than molecular rotation, thereby improving reliability while maintaining adaptability

The patent replaces the liquid-crystal molecular system with a microelectromechanical system featuring movable membranes. The membranes are actuated by electrostatic forces to change position, providing mechanical control of the dielectric environment. This substitution eliminates the inherent limitations of liquid-crystal switching while achieving the desired electrical property modulation

The patent changes the tuning mechanism from temperature-sensitive liquid-crystal molecular orientation to mechanically positioned membranes with stable dielectric properties. The membranes maintain consistent electrical characteristics across a broader temperature range because their function depends on physical position rather than thermal-dependent molecular alignment

The patent employs composite structures combining movable membranes with capacitor plates and support frameworks. This composite microelectromechanical design integrates multiple functional elements that work together to achieve phase and amplitude control through mechanical positioning, providing temperature-stable operation unlike pure liquid-crystal systems