Electronically scanned array having a transmission line distributed oscillator and switch-mode amplifier

1. An integrated circuit antenna array, comprising:

a first substrate,

a plurality of antennas adjacent the first substrate;

an RF network adjacent the first substrate; and

a plurality of distributed amplifiers integrated with the first substrate and coupled to the RF network, each distributed amplifier including a varactor configured to load the RF network with a variable capacitance responsive to a control signal, wherein the RF network and the distributed plurality of amplifiers are configured to form a resonant network such that if a timing signal is injected into an input port of the RF network, the resonant network oscillates to provide a globally synchronized RF signal to each of the antennas, and wherein a resonant oscillation of the resonant network is tunable responsive to the control signal.

2. The integrated circuit antenna array of claim 1 , wherein the substrate is a semiconductor wafer substrate.

3. The integrated circuit antenna array of claim 1 , wherein the RF network is implemented using waveguides selected from the group consisting of microstrip waveguides, co-planar waveguides, and planar waveguides.

4. The integrated circuit antenna array of claim 1 , wherein each antenna couples to the resonant network through a corresponding phase-shifter such that the integrated circuit antenna array is a beamforming array.

5. The integrated circuit antenna array of claim 4 , wherein each antenna couples to its corresponding phase-shifter through a switched-mode amplifier.