A switchable element, a device and a method for analogue and programmable computing operating on electromagnetic waves having a frequency, wherein the switchable element is configured to configured to, in response to an activation signal, switch from having a first dielectric permittivity for electromagnetic waves having a frequency to having a second dielectric permittivity for electromagnetic waves having the frequency, and the device comprises a plurality of the switchable elements that are adapted to be switched individually in accordance with the computing operation.

A switchable element, a device and a method for analogue and programmable computing operating on electromagnetic waves having a frequency, wherein the switchable element is configured to configured to, in response to an activation signal, switch from having a first dielectric permittivity for electromagnetic waves having a frequency to having a second dielectric permittivity for electromagnetic waves having the frequency, and the device comprises a plurality of the switchable elements that are adapted to be switched individually in accordance with the computing operation.

The present disclosure relates a switching matrix (100) comprising: a two-dimensional array of n input/output nodes (102), where n is equal to at least four; and a board comprising n network switches, one for each input/output node (102), each network switch coupling its corresponding input/output node to each of first and second switch connection points of the network switch; and, on a first side, a first switching network and on a second side, a second switching network.

A system for EMNZ metamaterial-based direct antenna modulation. The system includes a signal generator, a metamaterial switch and an antenna. The signal generator may is configured to generate a microwave signal. The metamaterial switch is configured to generate a modulated microwave signal from the microwave signal. The modulated microwave signal is generated by selectively passing the microwave signal through the metamaterial switch. The metamaterial switch includes a first conductive plate and a first loaded conductive plate. The first loaded conductive plate includes a second conductive plate and a first monolayer graphene. The first monolayer graphene includes a first tunable conductivity. The first monolayer graphene is positioned between the first conductive plate and the second conductive plate. An effective permittivity of the metamaterial switch is configured to be adjusted to a predetermined value. The effective permittivity of the metamaterial switch is adjusted responsive to tuning the first tunable conductivity.

A system for EMNZ metamaterial-based direct antenna modulation. The system includes a signal generator, a metamaterial switch and an antenna. The signal generator may is configured to generate a microwave signal. The metamaterial switch is configured to generate a modulated microwave signal from the microwave signal. The modulated microwave signal is generated by selectively passing the microwave signal through the metamaterial switch. The metamaterial switch includes a first conductive plate and a first loaded conductive plate. The first loaded conductive plate includes a second conductive plate and a first monolayer graphene. The first monolayer graphene includes a first tunable conductivity. The first monolayer graphene is positioned between the first conductive plate and the second conductive plate. An effective permittivity of the metamaterial switch is configured to be adjusted to a predetermined value. The effective permittivity of the metamaterial switch is adjusted responsive to tuning the first tunable conductivity.

A metamaterial switch. The metamaterial switch includes a first conductive plate, a first loaded conductive plate, and a magneto-dielectric material. The first loaded conductive plate includes a second conductive plate and a first tunable impedance surface set. Each tunable impedance surface in the first tunable impedance surface set includes a respective tunable conductivity. An effective permittivity of the metamaterial switch is configured to be adjusted to a first predetermined value. The effective permittivity of the metamaterial switch is adjusted responsive to tuning a respective tunable conductivity of each respective tunable impedance surface in the first tunable impedance surface set.

A metamaterial switch. The metamaterial switch includes a first conductive plate, a first loaded conductive plate, and a magneto-dielectric material. The first loaded conductive plate includes a second conductive plate and a first tunable impedance surface set. Each tunable impedance surface in the first tunable impedance surface set includes a respective tunable conductivity. An effective permittivity of the metamaterial switch is configured to be adjusted to a first predetermined value. The effective permittivity of the metamaterial switch is adjusted responsive to tuning a respective tunable conductivity of each respective tunable impedance surface in the first tunable impedance surface set.

A power switch including input and output lines of characteristic impedance Z0, and a switching area connected serially between the input and output lines, the switching area being formed by N (integer >2) parallel conducting branchesand i belonging to {1, . . . , N}, each conducting branch having, from input to output lines of the switch, an input line portion with characteristic impedance Zbei in series with a switching circuit in series with an output line portion with characteristic impedance Zbsi, the switching circuit configured, in a first state, to block passage of a signal between the input and output line portions of the conducting branch and, in a second state, to transmit a signal between the input line portion and the output line portion of the conducting branch with a maximum reflection coefficient of 0.316, each of the characteristic impedances Zbei and Zbsi ranging from 0.75*N*Z0 to 1.35*N*Z0.

A power switch including input and output lines of characteristic impedance Z0, and a switching area connected serially between the input and output lines, the switching area being formed by N (integer >2) parallel conducting branchesand i belonging to {1, . . . , N}, each conducting branch having, from input to output lines of the switch, an input line portion with characteristic impedance Zbei in series with a switching circuit in series with an output line portion with characteristic impedance Zbsi, the switching circuit configured, in a first state, to block passage of a signal between the input and output line portions of the conducting branch and, in a second state, to transmit a signal between the input line portion and the output line portion of the conducting branch with a maximum reflection coefficient of 0.316, each of the characteristic impedances Zbei and Zbsi ranging from 0.75*N*Z0 to 1.35*N*Z0.

A coaxial RF switch comprising a pair of coaxial conductors and a confinement flexure affixing to a conductor reed, wherein said confinement flexure having at least one fixed end such that the conductor reed can move freely and consistently to make and break the connections to the coaxial conductors.