EQUIVALENT ELECTRICAL CIRCUIT FOR DESIGNING MEMS-CONTROLLED REFLECTARRAY PHASE SHIFTERS

Equivalent Electrical Circuit for Design- Ing Mems-controlled Reflectarray Phase Shifters

This article presents an equivalent electrical circuit for designing Radio-Frequency MEMS-controlled planar phase shifter. This kind of phase shifters has recently been incorporated in reconfigurable reflectarrays. The proposed equivalent circuit depends on the number, the ON/OFF state and the locations of the switches inside the unit cell. Such equivalent circuit is used for determining, with ...

Actuation command circuit for 60GHz RF MEMS phase shifters

This paper presents the design and realization of a low power, high speed circuit used to actuate RF MEMS (Radio Frequency MicroElectroMechanical Systems) based phase shifters at 60GHz.The phase shifter are used to realize beam forming reconfigurable antenna for high data rate WPAN (Wireless Personal Area Network) applications. RF MEMS commonly have high actuation voltages usually obtained with...

Equivalent Circuit Modelling of Active Reflectarray Antenna

This paper presents equivalent circuit modeling of active planar reflectors which can be used for the detailed analysis and characterization of reflector performance in terms of lumped components. Equivalent circuit representation has been proposed for PIN diodes and liquid crystal based active planar reflectors designed within X-band frequency range. A very close agreement has been demonstrate...

Equivalent Electrical Circuit Model for Design and Optimization of Microstrip Reflectarray Unit Cells

Equivalent circuit of a reconfigurable triple-slot reflectarray cell

Abstract : This paper presents an equivalent model for a multiple-resonance reflectarray cell. It allows predicting the different phase-states of the cell from only a very few full-wave simulations. Demonstrations are first given for a passive cell where different geometrical parameters are varied. Then, the approach is generalized to a reconfigurable cell. Finally, a canonical reflectarray wit...