Radiation patterns describe the coverage possible with a particular antenna and its associated wireless circuitry, but generating such patterns can be difficult. They are typically generated by a test signal generator, receiver, broadband receive antenna, and many necessary test accessories such as a turntable to rotate a device under test (DUT) while testing. Another relatively common and not-so-inexpensive test-system “accessory” is an anechoic chamber. It prevents interference from radio sources that might be present in the frequency band of interest...
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