Amplitude Modulation of a Resistive Phase Conjugator based on Dual- Gate FET Technology
نویسندگان
چکیده
In this paper, the control over the second gate voltage in a dual-gate FET resistive mixer is employed for amplitude remodulating the response signal in a retrodirective array. A resistive mixer is integrated with an aperture coupled square patch, and a data signal voltage, Vg2s(t), is appropriately conceived in order to control the magnitude of the device time-varying output conductance. Measurements of the response signal in a backscatter test set-up validate the proposed solution for carrying information back to the interrogator position in full-duplex communications links. Key-Words: dual-gate FET; phase conjugation; resistive mixer; retrodirective arrays.
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