The comparison of two structures of wide band horn antenna

Manshari, Saeed; Hojjat-kashani, Farokh; Moradi, Gholamreza; Sarijlo, Mohamad

doi:10.1080/21681724.2018.1440423

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…This type of antenna is used either as a direct radiator (e.g., in point-to-point communication [2]) or as a reflector feed [3][4][5][6][7]. Utilization of high-gain horn antennas in the passive radar direction-finding arrays may reduce the cost of broadband receivers by reducing their sensitivity without changing the system range [8][9]. In this context, the important parameter of horn antennas is the location of the phase center over the operating frequency range [8][9].…”

Section: Imentioning

confidence: 99%

“…Utilization of high-gain horn antennas in the passive radar direction-finding arrays may reduce the cost of broadband receivers by reducing their sensitivity without changing the system range [8][9]. In this context, the important parameter of horn antennas is the location of the phase center over the operating frequency range [8][9]. Its variation reduces the aperture efficiency of the reflector.…”

Section: Imentioning

confidence: 99%

“…Resolving this problem through the employment of either three and four-element arrays or twoelement arrays with hybrid direction-finding method has been suggested [11][12], [13]. The latter utilizes the monopulse technique to resolve the ambiguity in the high-frequency range [8][9], [13]. Other important properties of antennas for the mentioned applications include a Gaussian beam shape of the amplitude pattern and the low sidelobe level at the principal planes [10].…”

Section: Imentioning

confidence: 99%

See 2 more Smart Citations

High-Performance Wideband Horn Antenna for Direction Finding Arrays

Manshari

Kozieł

Leiffson

et al. 2020

2020 14th European Conference on Antennas and Propagation (EuCAP)

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In this paper, a structure and design procedure of a novel double ridged horn antenna with a Gaussian amplitude radiation pattern and stable phase center for two-element direction finding arrays is presented. The radiation properties of the structure are improved through appropriate profiling of the ridge taper and utilization of an elliptical aperture. Furthermore, rigorous numerical optimization is employed to adjust the antenna geometry parameter values. The achieved impedance bandwidth (VSWR < 2) is from 1.5 GHz to 12 GHz (8:1). The antenna exhibits 7 dBi to 20 dBi gain, better than 85% aperture efficiency, > 10 dB side lobe level, as well as low phase center variation (< 5 cm over the operating band). The aforementioned features make the proposed antenna suitable for the amplitude and phase hybrid direction finding applications. The design is validated numerically in CST Microwave Studio.

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Section: Imentioning

confidence: 99%

Section: Imentioning

confidence: 99%

Section: Imentioning

confidence: 99%

See 1 more Smart Citation

High-Performance Wideband Horn Antenna for Direction Finding Arrays

Manshari

Kozieł

Leiffson

et al. 2020

2020 14th European Conference on Antennas and Propagation (EuCAP)

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Field‐matching at the compact SIW horn antenna aperture using genetic algorithm

Mohammadi‐Parastoo

Mohammad-Ali-Nezhad

Saviz

2020

Int J Numerical Modelling

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A compact substrate integrated waveguide (SIW) horn antenna is proposed with improvements in antenna gain and back lobe level. By pixelating the metal part of the antenna aperture and considering the presence or absence of metal in each pixel using Genetic Algorithm (GA), the electromagnetic field distribution could be controlled especially in the front panel of the antenna. As a result, an increase of 4 dBi occurs in gain and back lobe level is 10.8 dB better than the conventional SIW horn antenna. The proposed antenna works at the frequency of 30.2 GHz and without adding any parts to conventional SIW Horn antenna we do not leave the antenna in compact mode. In order to verify the simulation results, two commercial software has been used and the results are good both in CST and HFSS.

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