A novel scheme for reception using an active microstrip antenna
B.N. Biswas, Anamiya Bhattacharya, Partha Lahiri, Debasish Mondal · IEEE Transactions on Microwave Theory and Techniques · 2000
An unique aspect of the injection-locked active microstrip antenna incorporating a Gunn diode, i.e., the variation of the device current within the lock band, is exploited for the demodulation of an FM microwave signal. A simple experimental arrangement has been presented to demonstrate the demodulation performance of the receiver even in a multichannel environment. Using two such separate antennas as transmitter and receiver, a two-way short-range communication system has been demonstrated that may be suited for certain commercial and military applications.