Ultrawideband log-periodic dipole antenna arrays for the frequency range 0.7-12 GHz

Дубровка, Ф. Ф.; Lytvyn, Mykola; Lytvyn, S.M.; Мартынюк, Сергей Евстафьевич; Ryabkin, Yu.V.; Vtorov, O.O.

doi:10.1109/icatt.2005.1496894

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…While printed planar LPDAs offer several advantages, nonplanar LPDAs have been used as reflector feed for various applications in order to provide higher gain with an axially symmetric radiation pattern which is necessary for optimum illumination of reflectors [15,16]. The most promising recent application is the next generation of astronomy telescopes such as square kilometre array (SKA) and Allan telescope array (ATA) for which various non-planar dual polarised LPDA designs have been reported [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Design of a printed non‐planar dual‐polarised log‐periodic dipole array

Shirinabadi

Ahmadi-Boroujeni

Arbabi

et al. 2017

IET Microwaves, Antennas & Propagation

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An efficient and low cost approach to realise a non-planar dual-polarised log-periodic dipole array antenna (LPDA) using printed circuit board technology is proposed which achieves a high bandwidth and operational frequency. The proposed antenna utilises a very short transition from a coaxial cable to a balanced four-conductor transmission line to realise an ultrawide bandwidth balun and input impedance matching. An analysis of the utilised four-conductor transmission line alongside its comparison to two-conductor transmission line of a planar LPDA is also presented. Two prototypes of the antenna operating over the frequency ranges of 1-13 GHz and 1-18 GHz were designed, fabricated, and tested. An average gain of 6.7 dBi is obtained. Measured voltage standing wave ratio, cross-polarisation and front-to-back ratio of both prototypes are better than 2.6, −14, and 22 dB respectively.

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Section: Introductionmentioning

confidence: 99%

Design of a printed non‐planar dual‐polarised log‐periodic dipole array

Shirinabadi

Ahmadi-Boroujeni

Arbabi

et al. 2017

IET Microwaves, Antennas & Propagation

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“…Такі показники визначать місце застосування рупорних антен як випромінювачів ФАР. Це може бути космічна галузь, наземна техніка радіоелектронної розвідки та радіоелектронної боротьби, особливо, де основною вимогою є висока потужність зразка ОВТ [1][2][3][4][5][6][7].…”

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“…Також розсіювання виникає і на інших елементах антени. Такі недоліки впливають на радіолокаційну помітність зразків ОВТ та їх електромагнітну сумісність [1][2][3][4].…”

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Simulation of Reflection From Horn Emitters of Phased Antenna Arrays to Determine the Coefficients

Sydorchuk,

Zalevskiy,

Kovalchuk

2023

Проблеми Створення, Випробування, Застосування Та Експлуатації Складних Інформаційних Систем

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The article is devoted to the problem of researching reflection coefficients from horn emitters that are part of a phased antenna array. It was found that the advantage of using horn antennas is the high directivity of their radiation, a significant efficiency and a fairly high amplification factor. However, their main drawback is the back radiation (scattering) of electromagnetic waves by the elements of the antenna design. This affects the radar visibility of samples of weapons and military equipment and their electromagnetic compatibility. To eliminate these shortcomings, the article analyzes the differential characteristics of the backscatter diagrams of aperture antennas in order to improve the mathematical model of the reradiated field study, taking into account the reflection coefficients from horn emitters. In the course of the study, the causes and regularities of such a phenomenon as the reflection of electromagnetic waves from internal inhomogeneities of horn antennas were clarified, in order to reduce it. The given graphs of the dependence of the amplitudes of the reflected electromagnetic field on the observation angles show that the improvement of the alignment in the antenna path will cause an increase in the maximum signal amplitude in the transmission mode. According to the principle of inversion of antennas, such an arrangement will improve the absorption of waves of higher types directed to the openings of a single emitter or an equidistant antenna array. This will reduce the voltage standing wave factor and the level of side lobes. Therefore, the sounding radar station will receive a reduced level of the reflected signal, which will improve the defense of weapons samples that include a horn as a separate antenna or as part of equidistant linear phased antenna arrays. Keywords: phased antenna array; pyramidal horn emitter; reduction of the effective scattering surface; reflection coefficient.

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Design of spherical loop antenna with Ultra-Wide bandwidth

Jeong

Kuem

et al. 2015

2015 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)

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Ultrawideband log-periodic dipole antenna arrays for the frequency range 0.7-12 GHz

Cited by 9 publications

References 6 publications

Design of a printed non‐planar dual‐polarised log‐periodic dipole array

Design of a printed non‐planar dual‐polarised log‐periodic dipole array

Simulation of Reflection From Horn Emitters of Phased Antenna Arrays to Determine the Coefficients

Design of spherical loop antenna with Ultra-Wide bandwidth

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