Measurement Methods and Setups of Antennas at 60–325 GHz Bands

Antenna development at mmW bands has many uniquely challenging issues wherein the measurement is one of the toughest ones because of the expensive testing setup, system limited dynamic range, complicated and tedious calibration, as well as measurement procedures. This chapter deals with the measurement issues of the mmW antennas operating from 60 GHz to 300 GHz. First, the state‐of‐the‐art mmW antenna measurement systems is reviewed. Then the key considerations of configuring the measurement systems are addressed. Last, the detailed setup configurations for achieving the maximum system dynamic range with the available commercial accessories are described, wherein the measurement of radiation pattern of a number of antennas at 60, 140, and 270 GHz bands with different feeding connections (coax, waveguide, and probe) are exemplified.