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About 10,000 papers for “Radiation pattern”

Observed radiation pattern.

Šimon Řeřucha (695998), Tomáš Bartonička (238016), Petr Jedlička (695999) et al. · Figshare · 2016

<p>a) Observed radiation pattern of a particular antenna array. Sinusoidal patterns allow the detection algorithm to identify the azimuth of incoming signal unambiguously, b) Azimuth calculation error (denoted as BRG error) caused by the antenna pattern imperfections. An inverse function then forms a calibration vector that is applied to all signal readings in order to cancel out the influence of the imperfections.</p>

Cited by 0Open access

Radiation pattern programs

D. A. Bathker · NASA Technical Reports Server (NASA) · 1967

Computer programs for numerically evaluating scalar far field radiation pattern integral, and obtaining secondary radiation pattern of large paraboloidal antenna

Cited by 0

3D radiation pattern.

Yasir Fawad (17510234), Sadiq Ullah (7207343), Muhammad Irfan (255476) et al. · Figshare · 2023

<div><p>This manuscript presents high performance dual polarized eight-element multiple input multiple output (MIMO) fifth generation (5G) smartphone antenna. The design consists of four dual-polarized microstrip diamond-ring slot antennas, positioned at corners of printed circuit board (PCB). Cheap Fr-4 dielectric with permittivity 4.3 and thickness of 1.6mm is used as substrate with overall dimension of 150 × 75 × 1.6 <i>mm</i><sup>3</sup>. In mobile system due to limited space mutual coupling between nearby antenna elements is an issue that distort MIMO antenna performance. Defected ground structure is used to control coupling. The defected ground structure has advantages like ease of fabrication, compact size and high efficiency as compare to other techniques. Less than 30dB coupling is achieved for adjacent elements. The -10 dB impedance bandwidth of 700 MHz is achieved for all radiating elements ranging from 3.3 GHz to 4.1 GHz. The value is about 900MHz for -6dB. The proposed antenna offers good results in terms of fundamental antenna parameters like reflection coefficient, transmission coefficient, maximum gain, total efficiency. The antenna achieved average gain more than 3.8dBi and average radiation efficiency more than 80% for single dual polarized element. The antenna provides sufficient radiation coverage in all sides. The MIMO antenna characteristics like diversity gain (DG), envelope correlation coefficient (ECC), total active reflection coefficient (TARC) and channel capacity are calculated and found according to standards. Furthermore, effect of user on antenna performance in data-mode and talk-mode are studied. Proposed design is fabricated and tested in real time. The measured results shows that proposed design can be used in future smartphones applications. The design is compared with some of the existing work and found to be the best one in many parameters and can be used for commercial use.</p></div>

Cited by 0Open access

3D radiation pattern.

Yasir Fawad (17510234), Sadiq Ullah (7207343), Muhammad Irfan (255476) et al. · Figshare · 2023

<p>A: Antenna 1. B: Antenna 2. C: Antenna 3. D: Antenna 4. E: Antenna 5. F: Antenna 6. G: Antenna 7. H: Antenna 8.</p>

Cited by 0Open access

Simulated and measured radiation pattern.

Mohammed Nazmus Shakib (3589940), Mahmoud Moghavvemi (681154), Wan Nor Liza Mahadi (3589943) · Figshare · 2016

<p>a) <i>xz</i>-plane at 4.9GHz, b) <i>yz</i>-plane at 4.9GHz, c) <i>xz</i>-plane at 7GHz, d) <i>yz</i>-plane at 7GHz.</p>

Cited by 0Open access

Radiation Pattern Reconfigurable FM Antenna

Jaya Bharath Gopalakrishnan, Thennarasan Sabapathy, Muzammil Jusoh et al. · Journal of Physics Conference Series · 2019

Abstract In this work, a radiation pattern reconfigurable antenna design using compact printed spiral monopoles that operates at 102 MHz is reported. The proposed antenna changes its radiation behaviour that responds towards a desired direction with the use of RF switches. The antenna is printed on a 76.6mm × 50mm PCB layer providing more than 20MHz bandwidth at -10 dB threshold and is easily fabricated with low manufacturing cost. The antenna was also simulated on 500mm × 500mm ground plane that represents the roof top of a vehicle.

Cited by 1Open access

Measurement of antenna radiation pattern

Drdla, Karel · Brno University of Technology Digital Library (Brno University of Technology) · 2008

Cílem této práce je vytvoření automatizovaného pracoviště pro měření směrových charakteristik antén, které obsahuje měřící přístroj R&S ESCS 30. Konečným výsledkem je pak Software Pro Měření anténních parametrů označený SFMAP.EXE. Tento program řídí celý měřící proces podle zadaných požadavků uživatelem, sbírá naměřené hodnoty od R&S ESCS 30 a dokáže spočítat velikost vyzařovacího úhlu antény. Zároveň i dokáže nastavovat některé parametry měřícího přístroje a také řídí rotaci točny, na které je umístěna měřená anténa. Aby program byl schopen točnu ovládat, byl v rámci projektu vyvinut ovládací prvek na bázi obvodu FT232BL od firmy FTDI, pomocí kterého je pak možné točnu ovládat přes rozhraní USB. Toto řešení umožňuje použít jakýkoliv počítač nebo notebook, protože jsou všechny standartně vybavovány USB rozhraním.

Cited by 0

Simulated and measured radiation pattern.

Mohammed Nazmus Shakib (3589940), Mahmoud Moghavvemi (681154), Wan Nor Liza Mahadi (3589943) · Figshare · 2016

<p>a) xz-plane at 10GHz, b) yz-plane at 10GHz, c) xz-plane at 15GHz, d) yz-plane at 15GHz.</p>

Cited by 0Open access

Radiation Pattern Antenna System Measurement

Michal Dzuriš, Norbert Grilli, Imrich Szolik et al. · 2021

The article deals with measuring the radiation characteristics of the antenna system in conditions of very high electromagnetic fields and the presence of other interfering signals.

Cited by 1