Non-LTI Electrically Small Antenna System to Transmit an Arbitrary Waveform

This paper presents the conceptual design of an electrically small antenna (ESA) for transmitting arbitrary wideband signals. Using an ESA, the antenna system converts the baseband I/Q of a broadband signal to a circularly polarized waveform. Consequently, the bandwidth of the transmitted signal is orders of magnitude broader than the antenna’s instantaneous bandwidth. The full-wave simulation results of the antenna system are imported into a circuit simulator to evaluate its performance. These simulation results demonstrate that the proposed method for transmitting an arbitrary waveform from an ESA is effective.