Coupler device in phased array system
AssigneePhasetrum Inc.
InventorsZuo-Min Tsai, Yi-Ting Lin, Chia-Hsuan Cheng
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Abstract
The present disclosure provides a coupler device for use in a phased array system. The coupler device includes a weighting network and a phase matrix network. The weighting network is configured to convert and amplify an input signal to obtain eight intermediate amplified signals. The phase matrix network is coupled to the weighting network, and is configured to generate eight output signals based on the eight intermediate amplified signals. An output array of the eight output signals are obtained by performing a matrix multiplication of an array of the eight intermediate amplified signals with a phase matrix of the phase matrix network.
Claims19
A coupler device, for use in a phased array system, the coupler device comprising:
- a weighting network, comprising:
- a plurality of tunable amplifiers arranged in two stages, wherein the plurality of tunable amplifiers are configured to convert an input signal to a first amplified signal, a second amplified signal, a third amplified signal, and a fourth amplified signal;
- and
- a phase matrix network, coupled to the weighting network, wherein the phase matrix network is configured to generate a first output signal, a second output signal, a third output signal, and a fourth output signal based on the first amplified signal, the second amplified signal, the third amplified signal, and the fourth amplified signal.
A coupler device, for use in a phased array system, the coupler device comprising:
- a weighting network, configured to convert and amplify an input signal to obtain eight intermediate amplified signals;
- and
- a phase matrix network, coupled to the weighting network, wherein the phase matrix network is configured to generate eight output signals based on the eight intermediate amplified signals,
- wherein an output array of the eight output signals is obtained by performing a matrix multiplication of an array of the eight intermediate amplified signals with a phase matrix of the phase matrix network,
- wherein the weighting network comprises a plurality of tunable amplifiers arranged in a first stage, a second stage, and a third stage arranged in a cascaded architecture, and each of the tunable amplifiers is a 1-to-2 tunable amplifier configured to convert a first signal to a second signal and a third signal, and a first difference between a first phase of the second signal and a second phase of the third signal is a fixed phase angle.
Dependencies are inferred from the claim text.