Method and systems for making improved quasi-linear/nonlinear measurements on integrated antenna arrays and elements
AssigneeAnritsu Corporation
InventorJon Martens
Life of this patent
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Abstract
A system and method for making improved measurements of integrated antenna arrays utilizes vector network analyzer (VNA) and a calibrated receive-side system comprising two antennae, dual reflectometers coupled to the two antennae for match correction, a wide band intermediate frequency (IF) strip which connects the receive-side system to the input ports of the VNA, an air gap which separates the receive-side system form the DUT, and a stepmotion baffle configure to be inserted into the air gap to modify antenna coupling. The system and method enable measurement of noise characteristics of the DUT including nonlinear effects of transmitter element coupling between the plurality of transmitter elements within an antenna array.
Claims20
A system for obtaining measurements for a device under test (DUT) comprising:
- a four port vector network analyzer (VNA) including a storage medium, and a controller for controlling a sweep, signal sources, local oscillators (LOs) and an analog-to-digital converter (ADC);
- wherein the four port VNA is configured to provide two output ports and two input ports wherein the two output ports of the VNA are connected to the DUT;
- a calibrated receive-side system comprising two antennae;
- dual reflectometers coupled to the two antennae of the receive-side system for match correction;
- a wide band intermediate frequency (IF) strip which connects the receive-side system to the two input ports of the VNA;
- an air gap which separates the receive-side system from the DUT;
- and
- a stepmotion baffle configured to be inserted into the air gap to modify antenna coupling;
- wherein the system is configured to measure noise characteristics of the DUT.
A method for obtaining measurements for a device under test (DUT) comprising:
- providing a four port vector network analyzer (VNA) including a storage medium, and a controller for controlling a sweep, signal sources, local oscillators (LOs) and an analog-to-digital converter (ADC);
- wherein the four port VNA is configured to provide two output ports and two input ports wherein the two output ports of the VNA are connected to the DUT;
- providing a calibrated receive-side system comprising two antennae, dual reflectometers coupled to the two antennae for match correction, a wide band intermediate frequency (IF) strip which connects the receive-side system to the two input ports of the VNA, an air gap which separates the receive-side system from the DUT, and a stepmotion baffle configured to be inserted into the air gap to modify antenna coupling;
- and
- operating the VNA and the receive-side system to measure noise characteristics of the DUT.
A method for obtaining measurements for integrated radio comprising a plurality of transmitter elements, the method comprising:
- providing a four port vector network analyzer (VNA) including a storage medium, and a controller for controlling a sweep, signal sources, local oscillators (LOs) and an analog-to-digital converter (ADC);
- wherein the four port VNA is configured to provide two output ports and two input ports wherein the two output ports of the VNA are connected to a plurality of transmitter elements of the integrated radio;
- providing a calibrated receive-side system comprising two antennae, dual reflectometers coupled to the two antennae for match correction, a wide band intermediate frequency (IF) strip which connects the receive-side system to the two input ports of the VNA, an air gap which separates the receive-side system from the integrated radio, and a stepmotion baffle configured to be inserted into the air gap to modify antenna coupling;
- and
- operating the VNA and the receive-side system to measure noise characteristics of the integrated radio including nonlinear effects of the antenna coupling between the plurality of transmitter elements within the integrated radio.
Dependencies are inferred from the claim text.