Maximally flat and quasi-smooth sector beams

Ksienski, A.

doi:10.1109/tap.1960.1144881

Cited by 21 publications

(13 citation statements)

References 2 publications

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“…Radiation patterns with desired shapes can be realized by controlling the distribution of excitations for the antenna arrays. Various optimization methods have been proposed to determine the amplitude and phase distributions for the antenna arrays to achieve a prescribed field pattern in the far-field region [81]- [98]. Various performance indices can be used in pattern synthesis, such as pattern shape, sidelobe levels, front-to-back ratio and gain.…”

Section: Shaped Beam Antenna Arraysmentioning

confidence: 99%

The Method of Maximum Power Transmission Efficiency for the Design of Antenna Arrays

Geyi

2021

IEEE Open J. Antennas Propag.

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Various methods have been proposed to control the electromagnetic fields in the near-or far-field region, one of which is to use antenna arrays. This paper reviews a technique, called the method of maximum power transmission efficiency (MMPTE), for the design of antenna arrays and wireless power transmission (WPT) systems. The method is motivated by the fact that all wireless systems aim to maximize the power transmission efficiency (PTE) between the transmitter and receiver and the PTE can thus be considered as a performance index for the design of WPT system and antenna as well. The MMPTE makes use of the PTE as the performance index to be optimized, and reduces a field synthesis problem into a circuit analysis problem, and is therefore easy to master and implement. It overcomes all the challenges associated with conventional array design methods, and is applicable to the design of any type of antenna array in any environment. This paper summarizes the basic theory of MMPTE and demonstrates MMPTE through a number of near-and far-field applications, including focused antennas, smart antennas, shaped beam antennas, end-fire antennas, multi-beam antennas, polarization-reconfigurable antennas, and wireless power transmission systems.

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Section: Shaped Beam Antenna Arraysmentioning

confidence: 99%

The Method of Maximum Power Transmission Efficiency for the Design of Antenna Arrays

Geyi

2021

IEEE Open J. Antennas Propag.

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“…Es ist seit langem bekannt, Gruppen von vielen Einzelstrahlern anzuordnen und sie in der passenden Weise, nach Amplitude und Phase genau eingestellt, zu speisen [16,20,21,22]. Diese Anordnungen sind aber so großflächig, daß sie bei den relativ kleinen Richtfunkantennen einen untragbar großen Teil des Parabolspiegels verdecken.…”

Section: Bekannte Anordnungen Mit Denen Versucht Wurde Sektorähnlicunclassified

Hornstrahler mit sektorähnlichem Richtdiagramm für die gleichzeitige Übertragung zweier polarisationsentkoppelter Wellen

Thust¹

1966

Frequenz

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ÜbersichtEs wird ein Hornstrahler beschrieben, der für zwei Polarisationen in einem relativ breiten Frequenzband sektorähnliche Richtdiagramme aufweist. Er hat einen relativ großen Flansch in der Aperturebene und auf den Flansch aufgesetzte pilzförmige, in Strahlrichtung weisende Richtelemente. Eine mit diesem Hornstrahler und mit Randblenden versehene Rotationsparabolantenne von 3 m Durchmesser und 750 mm Brennweite hat im Frequenzbereich von 5,925 GHz bis 6,425 GHz für Winkel, 'die größer als 76 ° sind, Nebenstrahlungsdämpfungen von mehr als 60 dB und einen Gewinn von mindestens 43 dB.This paper concerns a horn radiator which has sector shaped radiation patterns for two perpendicular arranged polarisations and a broad frequency band. It has a relatively large flange in the aperture plane. On the flange there are mushroom-shaped elements. They point in the direction of the radiation. The application of this radiator to a paraboloid antenna of 3 m diameter, a focal length of 750 mm, and with edge shields, results in side lobe attenuation of more than 60 db for angles greater than 76 ° and a gain of at least 43 db, measured in the frequency range from 5.925 Gc to 6.425 Gc.

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“…For all elements (neglecting edge effects), i n is related to e n of Fig. 10 by the same proportionality independent of the other element excitations, and we could, in fact, replace i n by e n in (14).…”

Section: Arrays Of Real Radiatorsmentioning

confidence: 99%

“…Thus, even though (14) fails to apply, the element patterns can usually be taken into account in a straightforward and relatively simple manner. (φ, 0).…”

Section: U(6)mentioning

confidence: 99%

Array antennas: New applications for an old technique

Allen

1964

IEEE Spectr.

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Maximally flat and quasi-smooth sector beams

Cited by 21 publications

References 2 publications

The Method of Maximum Power Transmission Efficiency for the Design of Antenna Arrays

The Method of Maximum Power Transmission Efficiency for the Design of Antenna Arrays

Hornstrahler mit sektorähnlichem Richtdiagramm für die gleichzeitige Übertragung zweier polarisationsentkoppelter Wellen

Array antennas: New applications for an old technique

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