Compact flat monopole antenna for small aircraft of VHF communication system

Wongsakulphasatch, P.; Phongcharoenpanich, Chuwong; Kawdungta, Supakit

doi:10.1109/apcap.2012.6333141

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…With the development of communication, an antenna with an omnidirectional radiation pattern in the horizontal (XOY) plane attracts a lot of attention of researchers. These antennas are often realised by using monopole antenna and their variants [1][2][3]. However, the low gain in the horizontal plane limits the application in diverse environments.…”

Section: Introductionmentioning

confidence: 99%

Broadband omnidirectional patch antenna with horizontal gain enhanced by near‐zero‐index metamaterial cover

Guo

Jing

Hou

et al. 2020

IET Microwaves, Antennas & Propagation

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Enhancing the horizontal gain of the omnidirectional patch antenna is always a problem with great difficulty. Inspired by near‐zero‐index metamaterial (NZIM) cover that can improve the vertical gain of a directional patch antenna, the authors designed two kinds of NZIMs that are placed above the broadband omnidirectional antenna to enhance the horizontal gain. Simulated and measured results indicate that both covers can increase the values of horizontal gain >50% (1 dBi) at various frequencies in all directions, which provides a new approach to improve the horizontal gain of the broadband omnidirectional patch antenna.

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Section: Introductionmentioning

confidence: 99%

Broadband omnidirectional patch antenna with horizontal gain enhanced by near‐zero‐index metamaterial cover

Guo

Jing

Hou

et al. 2020

IET Microwaves, Antennas & Propagation

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“…Such radiation pattern is usually achieved using monopole antennas and their variants, which have already been applied in diverse environments [1][2][3]. These antennas, however, have high profiles and are hard to be conformal to curved and complex objects.…”

Section: Introductionmentioning

confidence: 99%

Effective Magnetic-Loop Array Antennas With Enhanced Bandwidth

Hou

Sun

et al. 2016

IEEE Trans. Antennas Propagat.

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Effective magnetic-loop array antennas with coupling feed structures are proposed in this paper. Two effective magnetic loops with constant magnetic currents are formed to produce omnidirectional radiation pattern in the azimuth plane. The gains in the plane are enhanced by interference effect of the fields formed by the two loops. The TM 01 mode and TM 02 mode are excited simultaneously by adjusting the parameters of feeding structures, to form a wide band. Prototype antennas working at 5GHz are designed, optimized, fabricated and measured, and bandwidths of 5% are achieved. The radiation patterns are stable in the operation band, and gains larger than 2 dBi in the azimuth plane at most frequencies can be observed. The elevation angles are about 30 degrees at various frequencies, lower than typical omnidirectional patch antennas. All these performances are realized on a low profile (λ/30) structure, which makes them possible elements in conformal applications. Index Terms-omnidirectional antenna, magnetic current loop array, patch antenna, bandwidth

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