Measured SAR of Integrated CMOS Transceiver Front End with Antenna Design

A Chromecast RFIC-on-chip antenna in 0.18 um CMOS process is presented. The measured VSWR is less than 2. The measured phase distribution of the input impedance is quite linear and the H-plane patterns are almost omnidirectional with power amplifier and low noise amplifier integration. This design includes a external broadband amplifier embedded with low-pass filter. The frequency-domain scattering parameters are converted into representations by employing weighted linear least square (LLS) method. A least square scheme is employed to obtain characteristic impedances of transmission line elements that form the amplifier having flat gain in the pass-band and good fall-off selectivity in the stop-band. RFIC-on-chip chromecast antenna also merger T/R switch and transceiver front end design on single chip solution for wearable technology application. Experimental results are presented to illustrate the validity of proposed design method.