Patent ID: 11923904
Assignee: APPLE INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electronic device comprising:
an antenna radiating element having an input impedance;
a photodiode coupled to the antenna radiating element and having an output impedance, the photodiode being configured to receive a control signal that places the photodiode into a selected one of a first mode in which the input impedance is mismatched with respect to the output impedance at a frequency greater than or equal to 100 GHz or a second mode in which the input impedance matches the output impedance at the frequency; and
an optical signal path configured to illuminate the photodiode using a first optical local oscillator (LO) signal and a second optical LO signal that is offset in wavelength with respect to the first optical LO signal while the photodiode is in the second mode, the antenna radiating element being configured to reflect wireless signals at the frequency while the photodiode is in the first mode.