Abstract: An optomechanical system including a guide structure, to guide a light beam; and two waveguide segments. Each guide structure include beams that together form two combs partially nested one in the other. At least one beam is free to move in translation along an axis orthogonal to the long axis of the guide structure. A displacement into an optical phase shift, while limiting additional effects on the intensity.

Abstract: A quadrature demodulator not requiring analog mixers. The demodulation is made using a first integrator and a second integrator which are controlled by square logic signals at twice the frequency of the carrier, the received signal being alternatively integrated by the first integrator and the second integrator over periods of time equal to a quarter period of time of the carrier frequency. The samples of the first and second integrators are sampled and subtracted from each other. The successive samples are combined in a first and a second combining module for providing in-phase and quadrature component samples. This demodulator can further be provided with a synchronization module IQ and a symbol synchronization module.

Abstract: A radiating cell having two phase states suitable for a transmitter array able to transmit microwave frequency signals, the cell comprising a first antenna and a second antenna arranged on either side of an assembly comprising two substrate layers separated by a ground plane, the second antenna comprising a conducting element able to radiate, the cell comprising comprises at least two switching means, said means each comprising an on state and an off state between two ports, one of said ports being connected to the second radiating element, said switching means being controlled in opposition. The radiating cell applies notably to the implementation of transmitter arrays employing several configurable cells to control the radiation pattern.