Hi everyone,
I am working on a project about Terahertz antenna. I fabricated an antenna with CPW-feeding structure, with size of 200 um. The s11 parameters can be obtained by GSG proble+VNA+Thz Module.
However, i have no idea on how to measure the radiation of the antenna since it has to been tested on a wafer probe system, which is not ready to be moved into a Chamber.
It is said that the Total Radiated Power is the the potential parameter that can be measured.
Does anyone could please help on how to setup and calibrate the system for Total Radiated Power for 140-220GHz planar antennas?
Thank you very much in advacne!
Best,
Bin
At such high frequency, OTA ( Over-the-Air) Testing is the best method. In this method, the device under test is placed in a free space environment inside a test chamber, and measurement is carried out by measuring its entire signal path and antenna performance.
If you know he heat capacity and thermal leakage you could measure how hot it gets, and take the heat power away from the total input power. What is left must be radiated.
You can measure total radiated power from a device using a reverberation chamber. It's a standard technique.
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