Franklin type microstrip line antenna

Nishimura, Shoichi; Nakano, K.; Makimoto, T.

doi:10.1109/aps.1979.1148179

Cited by 19 publications

(12 citation statements)

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“…For more compactness, we can use Franklin shape [19], thus get the same resonant frequency but with h m = 18 mm. Following the same procedure, shown in Fig.…”

Section: Franklin Dipolementioning

confidence: 99%

Analysis and Design of Universal Compact Flexible Uhf Rfid Tag Antenna

Abo-Elnaga¹,

Abdallah²,

El‐Hennawy³

2011

PIER B

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Abstract-The main goal of this paper is to present a design procedure for a flexible compact universal UHF RFID tag antenna suitable for worldwide UHF RFID applications. Systematic design procedure is introduced through the derivation of dipole input impedance general relation using induced EMF method considering wire radius effect. T-matched chart is used to match the tag input impedance with the chip input impedance and finally develop a flow chart to summarize the design procedure. The proposed antenna compactness trend is achieved through applying meandering and Franklin shape to conventional printed dipole antenna. Flexibility trend is achieved through using liquid crystal polymer LCP material as antenna substrate. The proposed antenna covers the frequency band 865 MHz to 1078 MHz and occupies an area of 1306.6 mm 2 . The computed radar cross section RCS and conjugate match factor CMF insure that the proposed antenna structure is easily detectable and achieves acceptable matching level. Power reflection coefficient PRC is computed, measured and good agreement is obtained. Other antenna parameters such as radiation efficiency, gain and radiation pattern are also calculated. The proposed antenna is cheap, flexible and suitable for UHF RFID universal application.

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“…For more compactness, we can use Franklin shape [19], thus get the same resonant frequency but with h m = 18 mm. Following the same procedure, shown in Fig.…”

Section: Franklin Dipolementioning

confidence: 99%

Analysis and Design of Universal Compact Flexible Uhf Rfid Tag Antenna

Abo-Elnaga¹,

Abdallah²,

El‐Hennawy³

2011

PIER B

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“…Franklin-type microstrip line antenna (Nishimura et al, 1979) was probably one of the rst microstrip line type antennas based on the collinear principle. The antenna conguration and the current distribution on the radiating microstrip line are depicted in Fig.…”

Section: Fig 2 Coaxial Collinear (Coco) Antenna With a Sketch Of Vementioning

confidence: 99%

Collinear Microstrip Patch Antennas

Holub¹,

Polívka²

2010

Passive Microwave Components and Antennas

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“…In [18][19][20][21], the rampart line antenna, a frequency scanning printed antenna, is proposed. This radiator is a travelling wave antenna realized with a meandered microstrip line that guarantees a wide band and reduced complexity.…”

Section: Introductionmentioning

confidence: 99%

“…This solution, even if accurate, is computationally expensive. In the cited references, rampart line antennas are designed using hardware or software experiments [20,22], applying phased array antenna (PAA) theory [18,19,21,22,25], or applying leaky-wave antenna (LWA) theory [26,28,29]. Both theoretical approaches are valid.…”

Section: Introductionmentioning

confidence: 99%

Analysis and modelling of rampart line antennas

Sacco

Caytan

Pisa

et al. 2021

IET Microwaves Antenna & Prop

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A new, efficient, and accurate analytical model is introduced for estimating the beam direction of rampart line antennas with microstrip radiators that can change beam direction with feeding frequency. The model takes its origins from 1-D array theory, in which the bends represent the radiating elements, and the interconnecting lines represent the phase shifters. A mathematical expression accounting for the equivalent length of the bends for the correct estimation of the distance between the radiators is introduced. The model was tested for various substrate relative permittivity values ranging from 2.9 to 6.45. This model can be used for arbitrary rampart line configurations by providing the equivalent dipole direction, depending on the orientation of the bends. An alternative geometry was proposed to reduce the coupling between the parallel line segments. A prototype operating in a bandwidth of 1 GHz around 7.8 GHz was realized on a Rogers RO4350B high-frequency laminate with a thickness of 1.524 mm. Both the radiation pattern and the reflection coefficient were measured and show a good agreement with the proposed analytical model and commercial full-wave simulation tool results.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Franklin type microstrip line antenna

Cited by 19 publications

References 0 publications

Analysis and Design of Universal Compact Flexible Uhf Rfid Tag Antenna

Analysis and Design of Universal Compact Flexible Uhf Rfid Tag Antenna

Collinear Microstrip Patch Antennas

Analysis and modelling of rampart line antennas

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