Shortening ratios of modified dipole antennas

Nakano, Hisamatsu; Tagami, Hachiro; Yoshizawa, Atsushi; Yamauchi, Junji

doi:10.1109/tap.1984.1143321

Cited by 102 publications

(32 citation statements)

References 2 publications

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“…Several works have appeared in the literature that presented miniaturized antenna using the shorting or folding techniques [44][45][46][47][48][49][50].…”

Section: Shorting and Foldingmentioning

confidence: 99%

“…Folding techniques have been used by many authors to reduce the size of wire antennas, such as helical, loop and monopole antennas [47][48][49][50]. They consist of using continuously folded wire antennas, which tend to resonate at much lower frequencies than an ordinary antenna of equal length.…”

Section: Figure19: λ /8 Shorted/folded Patch Antennamentioning

confidence: 99%

“…In [50] two types of modified dipole antennas have been discussed from an aspect of achieving a compact structure. It is demonstrated that a zigzag dipole, has the absolute gain and the half-power beamwidth comparable to those of a half-wave linear dipole.…”

Section: Figure19: λ /8 Shorted/folded Patch Antennamentioning

confidence: 99%

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Contribution to the miniaturization of antennas: State of the art

Tarbouch¹,

Elamri²,

Terchoune³

2016

TNC

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Nowadays, communications systems have become more mobile and personal, that means materials used must be as smaller as possible. Low weight reduced volume and low cost are some of the characteristics that must be accomplished in modern telecommunication equipment. It is well known that the antenna is one of the most important devices in the radiofrequency (RF) section. This element needs to perform effectively according to the necessities. To achieve low weight, small volume and low cost, the size needs to be reduced, but keeping the main characteristics. The size reduction of antennas can be made by several techniques according to the type of the element. In this study we will present the fundamental limitations of small antennas as a major constraint of antenna miniaturization, then we will discuss major techniques that have been reported in literature to reduce the size of an antenna. Feasibility, features, effects on the miniaturisation of antennas of each technique will be presented and discussed. At the end of this study we will give some examples of real systems that used antennas miniaturization techniques.

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“…Several works have appeared in the literature that presented miniaturized antenna using the shorting or folding techniques [44][45][46][47][48][49][50].…”

Section: Shorting and Foldingmentioning

confidence: 99%

Section: Figure19: λ /8 Shorted/folded Patch Antennamentioning

confidence: 99%

See 1 more Smart Citation

Contribution to the miniaturization of antennas: State of the art

Tarbouch¹,

Elamri²,

Terchoune³

2016

TNC

View full text Add to dashboard Cite

show abstract

“…In the past, meander structures were suitably introduced to reduce the resonant length of an antenna without great deterioration of its performances [34][35][36].…”

Section: Tl Model For Meander Antennasmentioning

confidence: 99%

Travelling Planar Wave Antenna for Wireless Communications

Losito¹,

Dimiccoli²

2012

Wireless Communications and Networks - Recent Advances

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“…Lately researchers have focused on investigating small self-resonant antennas, such as helical, meander, zigzag, and fractal type structures to achieve significant size reduction [7][8][9][10][11][12][13][14]. Among those considerable interest has been shown in self-similar space filling fractal geometries.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of a Microstrip-Fed Miniature Printed Hilbert Slot Antenna

Sayem¹,

Ali²

2006

PIER

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Abstract-The resonant frequencies and input impedance of a microstrip-fed third order Hilbert slot antenna are studied as function of antenna and substrate parameters. A distinct dualband characteristic is observed. Findings from HFSS simulation are validated by prototype fabrication and experimental measurement. The two resonant frequencies maintain a ratio of approximately 1.4 for narrow slots. A design parameter, L ax is identified which needs to be about 0.80λ g at the lowest operating frequency. The Hilbert slot provides a unidirectional pattern when operated against a metallic ground plane while maintaining dual-band characteristics.

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Shortening ratios of modified dipole antennas

Cited by 102 publications

References 2 publications

Contribution to the miniaturization of antennas: State of the art

Contribution to the miniaturization of antennas: State of the art

Travelling Planar Wave Antenna for Wireless Communications

Characteristics of a Microstrip-Fed Miniature Printed Hilbert Slot Antenna

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