High-speed real-time hand effect tuning algorithm in hand-held terminal

Author

Hyeong-Seok Jang ; Wang-Ik Son ; Kyoung-Sub Oh ; Sang-Hun Lee ; Ja-Hong Ku ; Jong-Won Yu

Author_Institution

Dept. of Electr. Eng., KAIST, Daejeon, South Korea

fYear

2011

fDate

24-25 Aug. 2011

Firstpage

1

Lastpage

2

Abstract

In this paper, impedance tuning algorithm is proposed. To improve antenna radiation performance, antennas have high radiation efficiency and mismatched efficiency. The mismatched efficiency can be improved by the impedance matching circuit and matching algorithm. The proposed algorithm uses only standing wave ratio (SWR) information. The proposed algorithm is high-speed predicting antenna impedance algorithm. The algorithm running time is less than 25 ms.

Keywords

antenna radiation patterns; impedance matching; SWR information; antenna radiation performance; hand-held terminal; high-speed real-time hand effect tuning algorithm; impedance matching circuit; impedance tuning algorithm; mismatched efficiency; radiation efficiency; standing wave ratio information; Algorithm design and analysis; Antennas; Capacitors; Impedance; Impedance matching; Prediction algorithms; Tuning; Impedance matching; hand effect; matching algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Radio for Future Personal Terminals (IMWS-IRFPT), 2011 IEEE MTT-S International Microwave Workshop Series on

Conference_Location

Daejeon

Print_ISBN

978-1-4577-0961-6

Electronic_ISBN

978-1-4577-0963-0

Type

conf

DOI

10.1109/IMWS2.2011.6027217

Filename

6027217