Improving 3G/4G receiver sensitivity (TIS) using antenna impedance matching networks

Author

Ho, Kevin Ming-Jiang ; Hsin-Chang Lin ; Rebeiz, Gabriel M.

Author_Institution

Univ. of California, San Diego, La Jolla, CA, USA

fYear

2014

fDate

1-6 June 2014

Firstpage

1

Lastpage

3

Abstract

This paper explores new applications for antenna impedance matching networks. It is seen that a tunable matching network can improve the cell phone system noise figure and total integrated sensitivity (TIS) by at ~ 1 dB at 700 MHz - 3 GHz. The reason is that a mismatched low-noise amplifier has a higher noise figure and a lower gain than a noise-matched LNA, and therefore, a tunable matching network is important for noise matching in receiver applications. This would lead to shorter download times and more efficient 3G and 4G mobile networks.

Keywords

3G mobile communication; 4G mobile communication; UHF amplifiers; UHF antennas; cellular radio; impedance matching; low noise amplifiers; microwave amplifiers; microwave antennas; mobile handsets; radio receivers; 3G mobile network; 3G-4G receiver sensitivity; 4G mobile network; TIS; antenna impedance tunable matching network; cell phone system noise figure; frequency 700 MHz to 3 GHz; mismatched low-noise amplifier; noise-matched LNA; total integrated sensitivity; Antennas; Indexes; Micromechanical devices; Mixers; Noise measurement; Radio frequency; Wireless communication; RLC circuits; Tunable circuits and devices; cellular phones; radio-frequency micro-electro-mechanical systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (IMS), 2014 IEEE MTT-S International

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/MWSYM.2014.6848615

Filename

6848615