Meander-line antenna with arc structure for UHF- RFID Tag

Wongsiritorn, Pitchanun; Pumpoung, Tajchai; Phongcharoenpanich, Chuwong; Nuangwongsa, Kanawat; Kosulvit, S.

doi:10.1109/ispacs.2011.6146140

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2014

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“…Pass-band of such systems starts at low frequencies therefore they are widely used as delay lines and deflection systems [1]- [3]. Moreover due to their compact size meander-shape structures are used for design of antennas for wireless communications systems [4], [5], biomedical applications [6], digital video broadcasting [7] and radio frequency identification [8], [9]. Furthermore meander-shape conductors are applied for design of filters [10], [11], couplers [12] and phase shifters [13], [14].…”

Section: Introductionmentioning

confidence: 99%

Frequency Characteristics of the Input Impedance of Meander Slow-wave System with Additional Shields

Metlevskis

Martavičius

2014

ElAEE

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A method for determination of input impedance of meander slow-wave system with additional shields is presented. It is based on a technique used for a calculation of frequency characteristics of helical slow-wave systems. The input impedance was determined at two ports: on the edge and in the centre of a system. S11 parameter is known as the input reflection coefficient, so system's input impedance in the lower frequencies can be determined by changing the signal source and load resistances until minimum value of S11 parameter is obtained. Using proposed method frequency characteristics of input impedance and S11 parameter of a meander slow-wave system with additional shields is analysed in Sonnet software.

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