A directional coupler with suppressed Tx leakage for UHF RFID reader applications

Jung, Jong Hyun; Lee, Geunyong; Song, Jong−In

doi:10.1080/09205071.2015.1105154

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Directional couplers are passive four-port microwave components [1], which are widely used in many microwave and millimeter-wave systems for splitting or combining power with certain ratios and under specific requirements such as frequencies, bandwidth, and structure dimensions [2,3,4,5]. Directional couplers with equal power and 90°phase-shift output ports are called 90°hybrid couplers [1].…”

Section: Introductionmentioning

confidence: 99%

Rigorous Analysis of a 26-GHz hybrid SIW coupler with Mode Matching Technique

Matar

Çınar

2022

JERR

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In this paper, rigorous Mode-Matching Technique (MMT) with Generalized Scattering Matrix Method (GSMM) is used to analyze novel hybrid SIW coupler operating at 26 GHz for 5G applications. The introduced coupler has an equal-amplitude of about -3 dB besides 90-degree at its forward and coupled output ports with more than 4 GHz bandwidth. In addition to rigorous analysis, full-wave CST simulator is used to optimize coupler structure and the results from MMT and CST are compared and discussed. The coupler structure divided into two symmetrical cascaded parts with each part having multi-port bifurcated sections. Due to symmetrical structure, analyzing one half of the coupler with MMT has been sufficient for full analysis.

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Section: Introductionmentioning

confidence: 99%

Rigorous Analysis of a 26-GHz hybrid SIW coupler with Mode Matching Technique

Matar

Çınar

2022

JERR

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“…Therefore, its performance has an important influence on the overall efficiency of MPT. 3 With the emergence of radio frequency identification 4,5 and wireless sensor [6][7][8] in recent years, the application range of the rectenna is further expanded.…”

Section: Introductionmentioning

confidence: 99%

A method to calculate the conversion efficiency of a rectenna

Wan

Liu

2018

Int J RF Microw Comput Aided Eng

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This article studies the working principle of a rectenna which is a combination of an antenna and a rectifying circuit. In the simulation, the working properties of the rectifying circuit can be represented by two characteristic curves which are extracted from it, and these two curves are independent of the device which is connected with it. The measured results demonstrate that the data calculated by the two curves can be used to accurately describe the conversion efficiency of the rectifying circuit. Furthermore, the two curves are used to represent the rectifying circuit in the calculation of the rectenna conversion efficiency. In addition, with the characteristic impedance of the antenna, the calculation equation is given. In the experiment of the rectenna, the measured conversion efficiency of the rectenna is in agreement with the data calculated by the proposed equation, which proves the accuracy of this method.

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Implementation of Carrier-Cancellation Circuit for UHF RFID Reader RF Front-End using Genetic Algorithm Optimization

Van

Nguyen

2021

2021 International Symposium on Electrical and Electronics Engineering (ISEE)

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A directional coupler with suppressed Tx leakage for UHF RFID reader applications

Cited by 3 publications

References 6 publications

Rigorous Analysis of a 26-GHz hybrid SIW coupler with Mode Matching Technique

Rigorous Analysis of a 26-GHz hybrid SIW coupler with Mode Matching Technique

A method to calculate the conversion efficiency of a rectenna

Implementation of Carrier-Cancellation Circuit for UHF RFID Reader RF Front-End using Genetic Algorithm Optimization

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