Antenna Measuring Station

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes an apparatus and method for accurately measuring the characteristics of an antenna in a free-space environment. It improves measurement accuracy by detecting transmitted signal power in the frequency domain, converting the data to the time domain, and applying a specialized time-domain filter to minimize errors caused by multipath signal propagation based on the distance between antennas.

Use CasesContent extracted from patent full text and abstract with AI.

• Testing antennas during research and development in laboratories.
• Quality control of antennas during manufacturing processes.
• Validating antenna performance for communication systems, such as in cellular base stations or satellite systems.
• Calibrating antennas used in radar, automotive sensors, or wireless devices.
• Field-testing of antennas in open or semi-anechoic environments.

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces or eliminates errors caused by multipath signals, leading to more precise antenna measurements.
• Improves reliability and repeatability of antenna characteristic tests.
• Adaptively adjusts filtering based on antenna distance, enhancing versatility for different testing setups.
• Enables accurate free-space antenna assessments without the need for complex or expensive anechoic chambers.
• Streamlines and speeds up the measurement process by automating error reduction.

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Patent Abstract

An apparatus and a method for determining an antenna characteristic of an antenna under test in free space is disclosed. Measurement results of a transmitted power of a measurement signal transmitted between the reference antenna and an antenna under test are detected, wherein detecting takes place in the frequency domain. The detected measurement results are transformed into the time domain and a time-domain filter is applied to the measurement results converted into the time domain. A filter width of the time-domain filter is determined in dependence on a spatial distance between the reference antenna and the antenna under test. Measurement result portions that result due to a multipath propagation of the measurement signal between the reference antenna and the antenna under test are reduced or removed.