Transceiver Front-end with Antenna for Smart Building and Internet of Thing Applications

Wireless radio-frequency integrated chip (RFIC) frontend was investigated for ultra-wideband applications in this study. The wireless transceiver integration includes a power amplifier with a pre-distorter, bandpass filter, two mixers, and low noise amplifier with a balun in parallel and adjustable gain control (AGC). The RF throw radio (TR) switch circuit converted signals from an antenna using the same voltage-controlled oscillator as a local oscillator design. This design increased linearity conversion gain by 25 dB, output 1dB compression point (OP
1dB
), and 10 dBm and power added efficiency (PAE) to 12%. The promoted LNA exhibited the return loss of input by 21.1 dB, the return loss of output rising by 33.5, the behaved gain of 13.3 dB, the exhibited noise figure of 6 dB, the exhibited input 3rd order intercept point (IIP
3
) of 4.16 dBm, and the input 1dB compression point (IP
1dB
) of −11.5 dBm. The proposed AGC gained a tuning range from 13.3–1.4 dB and the noise figure tuning range from 6–10.83. The implemented 2.4GHz transceiver using CMOS technology relied on conditions and distances and concurrently complied with the wireless performance requirements of the Internet of Things (IoT).