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In this paper, RF receiver front-end applying high speed intelligent DSRC (Dedicated Short Range Communication) systems is presented. The proposed chip includes a current-reused LNA, a folded Giber cell mixer, a Colpitts VCO, and SIR pseudo-inter digital bandpass filter. This design of the 5.8GHz band filter design using micro strip structures like pseudo-inter digital cavity to form band-pass filters,...
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...
A RFIC-on-chip antenna and broad-band power amplifier in 0.18 um CMOS is presented. The HFSS 3-D EM simulator is employed for design simulation. 2.4GHz antenna has been realized. The measured VSWR is less than 2 from 2.4 GHz. This propose super quadric wireless antenna in free space, electromagnetic coupling between super quadric antenna and human body and rectangular antenna for intelligent computer...
A new fully integrated, low power voltage controlled oscillator and divider for Bluetooth and Miracast application are presented. The power consumption use charge recycling technique to reduced current from the divider. This circuit was implemented in 0.18 um CMOS technique with 1.8 V supply voltage. The broadband CMOS double-balance mixer for RF receiver is presented. The broadband mixer is fabricated...
A new fully integrated, low power complementary cross-coupled quadrature voltage-controlled oscillator (QVCO), divide-by-two frequency divider and double-balance mixer for biomedical applications are presented. The features of our proposed circuit are using charge recycling technique to reduce current from the divider, employing adaptive body-biasing technique (ABB) to drop the minimum voltage clearance...
A high performance current-reused CMOS LC-voltage-controlled oscillator (LC-VCO) for WiMAX communication and internet application is fabricated in TSMC 0.18-µm CMOS process. The proposed VCO applies the complementary cross-coupled technique and uses differentially tuned accumulation MOS varactors. Measured results achieve 27.86% frequency tuned range when biased between 0–1.8 V, tunable output frequency...
A simple structure designed antenna for 2G/3G/4G mobile communication applied to notebook computer and mobile phone is proposed and analyzed by FDTD (Finite Difference Time Domain) in this study. The proposed tunable antenna has great characteristics of simple structure, easy production, low cost, good impedance matching, and wideband frequency. The antenna main structure is printed on FR4 single-sided...
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