Vol. 51

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2014-12-26

Dual-Helix Monopole Antenna with Circular Polarization Operation for Minimally Invasive Surgery System

By Jui-Han Lu, Yuan-Chih Lin, and Hao-Shiang Huang
Progress In Electromagnetics Research Letters, Vol. 51, 7-14, 2015
doi:10.2528/PIERL14100901

Abstract

A novel dual-helix monopole antenna with circular polarization (CP) operation is proposed. By utilizing a pair of asymmetrical strip-sleeves shorted at the ground plane, the proposed CP design at 2.45 GHz ISM band can easily be achieved and provides the impedance bandwidth (RL≧10 dB) about 240 MHz and the 6 dB axial-ratio (AR) bandwidth about 126 MHz. The measured peak gain and radiation efficiency are about 9.1 dBic and 81% across the operating bands, respectively.

Citation


Jui-Han Lu, Yuan-Chih Lin, and Hao-Shiang Huang, "Dual-Helix Monopole Antenna with Circular Polarization Operation for Minimally Invasive Surgery System," Progress In Electromagnetics Research Letters, Vol. 51, 7-14, 2015.
doi:10.2528/PIERL14100901
http://www.jpier.org/PIERL/pier.php?paper=14100901

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