Publication

Abstract : This paper discusses the design and implementation of a receiver that will receive, process, and demodulate a Quadrature Amplitude Modulation (QAM) signal transmitted at 2.45 GHz, adhering to IEEE standards. The process begins by capturing a 2.45 GHz QAM-modulated signal via a feed antenna, which is then passed through a Low Noise Amplifier (LNA) to improve the signal-to-noise ratio (SNR) by enhancing the strength of the signal with minimal introduction of additional noise. This is followed by a Bandpass Filter (BPF) which will selectively allow the 2.45 GHz signal to pass while attenuating unwanted frequencies. The filtered signal is finally demodulated using a QAM demodulator, extracting the original data encoded onto the carrier signal, essentially decoding the signal. The system’s effectiveness in accurately demodulating 2.45 GHz QAM signals is validated through simulations. This study showcases the system’s potential for use in IEEE–standard wireless communications.