Title :
Design broad-band power amplifier and chip antenna with human body at intelligent computer and communications applications
Author :
Wen-Cheng Lai ; Jhin-Fang Huang ; Pi-Gi Yang
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
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 and communications applications. The measured phase distribution of the input impedance is quite linear and the H-plane patterns are almost omnidirectional and microwave amplifier embedded with low-pass filter integration. RFIC-on-chip antenna and merger T/R-switch design on single chip solution for 2.4GHz CMOS transceiver RF front-end. A least square scheme is used to obtain characteristic impedances of transmission line elements that form the amplifier having flat gain in the pass-band and sharp rejection in the stop-band. Measured results are employed to verify the novel design method.
Keywords :
CMOS integrated circuits; UHF antennas; UHF power amplifiers; antenna radiation patterns; biomedical communication; least squares approximations; low-pass filters; microwave power amplifiers; radiofrequency integrated circuits; CMOS transceiver; H-plane patterns; HFSS 3D EM simulator; RF front-end; RFIC-on-chip antenna; T/R-switch design; UHF antenna; broadband power amplifier; communications applications; electromagnetic coupling; free space; frequency 2.4 GHz; human body; intelligent computer; least square scheme; low-pass filter integration; microwave amplifier; omnidirectional amplifier; phase distribution; quadric wireless antenna; rectangular antenna; single chip solution; super quadric antenna; transmission line elements; Antenna radiation patterns; CMOS integrated circuits; Microwave amplifiers; Microwave circuits; Microwave filters; Switching circuits; Broadband amplifier; CMOS RFIC on-chip antenna; amplifier embedded with filter; discrete time scheme; least square method;
Conference_Titel :
Systems and Informatics (ICSAI), 2014 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4799-5457-5
DOI :
10.1109/ICSAI.2014.7009352
