2012-06-01
Active Slot-Ring Antennas as a Receivers
By
Progress In Electromagnetics Research Letters, Vol. 32, 59-68, 2012
Abstract
A Gunn mounted active microstrip slot-ring antenna (ASRA) has been investigated for the reception of FM microwave signal. Current well/valley phenomenon has been successfully utilized to demodulate the modulation information. The monolithic behaviour of an active slot-ring antenna as a lock-in amplifier, FM (Frequency Modulation) to AM (Amplitude Modulation) converter and square law detector has been demonstrated in this paper. Theoretical analysis coupled with experimental results has been presented. The proposed receiving scheme is unique in the sense that it does not require IF electronics for the purpose of demodulation. It also works well in a multi-channel environment due to the excellent noise-squelching property of an Injection Locked Gunn Oscillator.
Citation
Somnath Chatterjee, and Baidyanath N. Biswas, "Active Slot-Ring Antennas as a Receivers," Progress In Electromagnetics Research Letters, Vol. 32, 59-68, 2012.
doi:10.2528/PIERL12040604
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